Bioluminescent Fungi as a Multifunctional Bioresource: Biodiversity, Bioactive Metabolites and Emerging Applications

1. Introduction

Nature hosts an extraordinary variety of light-producing organisms. Yet, the underlying biochemistry and evolutionary logic of bioluminescence light generated through internally controlled chemical reactions rather than heat still keeps biologists up at night with questions rather than answers (Lu et al., 2024; Zheng et al., 2023). Unlike an incandescent bulb, which wastes most of its energy as heat, bioluminescent systems route chemical energy almost entirely into photons. Fungal systems, in particular, reach quantum efficiencies above 90%, a number that any engineer would envy (Stevani et al., 2013). And yet, why an organism sitting on a damp log in a shaded forest should bother to glow at all is still genuinely unclear. Whether fungal light acts as a signal, a reproductive aid, a vestigial trait, or something else remains debated. Our ancestors called it "foxfire" or "fairy fire" and wove it into folklore before anyone understood what was actually happening biologically (Lu et al., 2024; Zheng et al., 2023). What began as folk observation has since matured into a properly interdisciplinary field spanning fungal ecology, molecular biology, bio-photonics, pharmacology, and synthetic biology. Modern work makes one thing clear: fungal luminescence isn't just a visual curiosity — it ties into secondary metabolism, oxidative stress responses, and evolutionary adaptation in ways we're still uncovering (Stevani et al., 2013; Weinstein et al., 2016).

Aristotle noted glowing materials in the fourth century BCE, but the systematic study of non-thermal light emission really only kicked off in the late nineteenth century, when the German physicist Eilhard Wiedemann coined "luminescence" to describe light generated without significant heat (Zheng et al., 2023). From those early observations, research progressed into enzymatic characterization and, eventually, the complete reconstruction of fungal luminescent pathways through recombinant DNA technology (Kotlobay et al., 2018; Purtov et al., 2015).

Most luminous basidiomycetes are saprotrophic; they colonize decomposing logs, bamboo stumps, roots, and leaf litter in humid tropical and temperate forests, doing useful work in nutrient recycling and carbon turnover along the way (Lu et al., 2024; Perry et al., 2024). Their emitted light peaks between 520 and 530 nm, a window that overlaps well with the visual sensitivity of nocturnal insects and transmits efficiently through forest vegetation. These spectral properties have fuelled hypotheses about insect-attraction signalling, though the actual ecological function of fungal glow is still unresolved (Adams et al., 2023; Perry et al., 2024). Taxonomic surveys now recognize roughly 132 bioluminescent species, partitioned into five major evolutionary lineages: Mycenoid, Omphalotus, Armillaria, Lucentipes, and Eoscyphella (Lu et al., 2024; Perry et al., 2024). The Mycenoid lineage dominates, with about 96 species accounting for nearly three-quarters of all known luminous mushrooms, a clear signal of substantial diversification within this clade (Ke et al., 2020; Perry et al., 2024). These numbers almost certainly undercount what is really out there. Tropical forest surveys keep turning up new records from Brazil, China, Malaysia, Thailand, Indonesia, Australia, and India (Desjardin et al., 2010; Dutta et al., 2023; Karunarathna et al., 2020; Nugeraha et al., 2025; Stevani et al., 2013).

Interest in bioluminescent mushrooms has increased over the past decade because of their structurally diverse secondary metabolites and potential biological activities (Jose & Radhamany, 2012; Oliveira et al., 2025; Sangsopha et al., 2019; Wisetsai et al., 2021). For example, conjugated long-chain fatty acids from Neonothopanus gardneri showed strong activity against Schistosoma mansoni, with an EC₅₀ under 10 µM. While scalarane sesterterpenoids from Neonothopanus nambi showed antibacterial and anticancer activities in vitro (Oliveira et al., 2025; Sangsopha et al., 2019; Wisetsai et al., 2021).

Parallel to these developments, the complete elucidation of the fungal luciferin biosynthetic pathway, particularly its reliance on caffeic acid, a metabolite plants already produce, opened the door to engineering self-sustaining bioluminescent systems in other organisms. Kotlobay and colleagues demonstrated this by transferring the full pathway into Pichia pastoris yeast, producing autonomously luminescent strains that glow under standard growth conditions with no external substrate feeding required (Kotlobay et al., 2018). Subsequent studies have extended this breakthrough to tobacco, vegetable crops and even mammalian cells, opening gene-expression analysis, drug discovery, environmental biosensing and molecular imaging applications that were previously unimaginable (Khakhar et al., 2020; Li et al., 2025; Mitiouchkina et al., 2019; Palkina et al., 2024; Shakhova et al., 2024; Syed & Anderson, 2021; Zheng et al., 2023).

On the ecological front, multiple hypotheses have been advanced to explain why fungi emit light (see Section 6), and no single theory accommodates every lineage (Lu et al., 2024; Weinstein et al., 2016). Empirical evidence from Omphalotus nidiformis in Australia, for instance, has challenged the long-standing assumption that glow attracts spore-dispersing insects; field sticky-trap experiments showed no statistically meaningful difference in insect capture between lit and unlit treatments across 480 trap-hours (mean captures 0.33 versus 0.54 individuals per trap night, respectively) (Weinstein et al., 2016). Other experiments using LED-mimic mushroom models in Costa Rican oak forests have nevertheless shown that green wavelengths do attract Dipteran vectors (Adams et al., 2023). These divergent observations suggest that the ecological role of glow is lineage-specific, environment-dependent, and possibly vestigial in some species (Perry et al., 2024; Sivinski, 1998; Weinstein et al., 2016).

This review pulls together current understanding of the diversity, evolutionary history, biochemistry, pharmacological significance, agricultural uses, environmental relevance, and prospects of bioluminescent fungi, with particular emphasis on discoveries that establish their value as multi-purpose biological resources for medicine, sustainable agriculture, biotechnology, and biodiversity conservation.

2. Historical Perspective of Bioluminescent Fungi

The documented record of glowing fungi stretches back more than two thousand years, reflecting a long-standing human curiosity about things that emit light without burning (Zheng et al., 2023). Long before mycology existed as a discipline, observers across Europe and Asia noted strange glows emerging from decaying timber, forest floors, and tree stumps on warm, humid nights. Without any framework for understanding microbes or fungi, these phenomena got folded into folklore, they became omens, hauntings, the stuff of haunted forests and burial grounds (Lu et al., 2024; Zheng et al., 2023).

The earliest scientific description of naturally glowing material is usually credited to Aristotle (384–322 BCE), who in History of Animals and other works described a kind of "cold fire" that gave off light without heat or fuel consumption. He offered no mechanism, but his account represents the first documented scientific recognition of biological light emission. Pliny the Elder (23–79 CE) later assembled one of the more comprehensive early accounts of naturally luminous organisms, contributing to the historical foundation of the field (Zheng et al., 2023).

In 1888, the German physicist Eilhard Wiedemann made a key conceptual breakthrough by introducing the word "luminescence" to refer to light emission that does not involve appreciable heat. This gave the field a unified vocabulary and helped establish photobiology as a distinct discipline, opening the door for systematic investigation of luminous fungi alongside other bioluminescent organisms (Zheng et al., 2023). A key methodological breakthrough came when Stevani and Oliveira verified the enzymatic origin of fungal bioluminescence, identifying a NAD(P)H-dependent reductase that cooperates with a membrane-bound luciferase in a two-step reaction requiring NAD(P)H and molecular oxygen to initiate (Stevani et al., 2013). This finding laid the groundwork for treating the phenomenon as a true enzyme-mediated biochemistry rather than as phosphorescence or a passive optical artifact.

The twenty-first century has witnessed a step-change in our understanding, propelled by molecular biology, genomics, transcriptomics and analytical chemistry. A series of landmark studies has now mapped the fungal luminous pathway nearly in its entirety. Purtov and colleagues identified 3-hydroxyhispidin as the fungal luciferin, biosynthesised by oxidation of the styrylpyrone hispidin, itself a known plant and fungal secondary metabolite (Purtov et al., 2015). Kotlobay and colleagues then elucidated the complete caffeic-acid cycle, identified the fungal luciferase and showed that all four genes of the cycle are genetically linked and that the entire pathway is portable into heterologous hosts (Kotlobay et al., 2018). Tsarkova subsequently delineated how hispidin is hydroxylated to form fungal luciferin by a soluble NADPH-dependent hydroxylase and how fungal luciferase—the third enzyme of the cycle—oxidises luciferin to an unstable endoperoxide that collapses to caffeoylpyruvate with concomitant photon emission (Desjardin et al., 2010). These advances opened unprecedented opportunities in synthetic biology and biomedical engineering (Khakhar et al., 2020; Kotlobay et al., 2018; Mitiouchkina et al., 2019; Palkina et al., 2024; Zheng et al., 2023).

Equally significant are the foundational observations tracing luminescence to a conserved enzymatic cascade. Berliner showed as early as 1961 that dikaryotic cultures of Panus stipticus, Armillaria mellea and Mycena polygramma exhibit a robust diurnal periodicity in photon output, with the least amount from 6 to 9 a.m. and the highest strengths from 6 to 9 p.m., regardless of ambient illumination regime, a result that presaged later discoveries of formally circadian regulation in luminous fungi (Berliner, 1961). Decades later, comparative genomic work on bonnet mushrooms by Ke and colleagues resolved the evolutionary origin of fungal luminescence, demonstrating that the trait emerged once in the last common ancestor of the mycenoid and marasmioid clades of Agaricales and has been continued over 160 million years of evolution (Ke et al., 2020; Lu et al., 2024).

In parallel with these mechanistic and evolutionary milestones, exploration of tropical biodiversity hotspots has continued to enlarge the known diversity of luminous fungi. New records continue to emerge from Brazil (Perry et al., 2024), China (Perry et al., 2024), Southeast Asia, Australia (Weinstein et al., 2016) and Northeast India (Dutta et al., 2023; Karunarathna et al., 2020; Nugeraha et al., 2025; Seas & Ávalos, 2013), and the pace of discovery shows no sign of slowing.

3. Diversity and Classification of Bioluminescent Fungi

3.1. Diversity of Bioluminescent Fungi

Bioluminescent fungi may not be numerous in absolute terms, but what they lack in species count they make up for in evolutionary and ecological insight (Perry et al., 2024). Despite that relatively modest species tally, these organisms occupy a remarkably wide range of habitats. One thing phylogenetic work has made very clear: fungal bioluminescence almost certainly traces back to a single ancestral origin, and the trait has since been lost independently in multiple descendant lineages (Ke et al., 2020; Palkina et al., 2024; Perry et al., 2024). That “single-origin-then-multiple-losses” pattern explains why we routinely find luminous and non-luminous species coexisting within the same genus, a situation that would not make sense if light production were a fixed, conserved feature of those lineages (Ke et al., 2020; Palkina et al., 2024; Perry et al., 2024). Instead, the retention of the underlying genetic machinery in many "dark" species suggests that a hidden fleet of cryptic or "silent" lineages has been quietly sitting in the shadows of our catalogues all along.

Recent discoveries have brought this idea into sharper focus. Heinzelmann and colleagues showed that Mycena crocata, a species distributed across Europe and Japan that had long been considered non-luminous, actually does produce light, though the emission is so weak it had escaped earlier detection (Perry et al., 2024). The species carries the complete biosynthetic gene cluster required for glow, which means the standard estimate of 132 luminous species is almost certainly a conservative one, and the true diversity out in the field is likely larger (Perry et al., 2024; Stevani et al., 2013)

The molecular revolution has been a major accelerant of all this discovery work. DNA-based identification methods have dramatically sharpened taxonomic resolution and opened up the possibility of finding new luminous species through integrated morphological, phylogenetic, and ecological profiling (Dutta et al., 2023; Karunarathna et al., 2020; Nugeraha et al., 2025). Tropical biodiversity surveys, particularly in Northeast India have repeatedly surfaced previously undocumented glowing taxa, reinforcing a basic principle: classical taxonomy plus modern molecular tools, used together, is what it takes to recover the hidden diversity and evolutionary complexity of bioluminescent fungi (Dutta et al., 2023; Karunarathna et al., 2020)

3.2. Major Evolutionary Lineages

Modern phylogenetic studies partition the bioluminescent agarics into five principal evolutionary lineages anchored on molecular data: the Mycenoid, Omphalotus, Armillaria, Lucentipes and Eoscyphella clades (Table 1 and Figure 1) (Ke et al., 2020; Lu et al., 2024; Perry et al., 2024).

Adapted from Perry et al. and Lu et al. (Lu et al., 2024; Perry et al., 2024); Ke et al. place the origin of fungal luminescence in the last common ancestor of the Mycenoid and Marasmioid clades of Agaricales, indicating that the trait has been conserved for not less than 160 million years (Ke et al., 2020).

The Mycenoid lineage represents the most species-rich group among bioluminescent fungi, accounting for nearly three-quarters of all currently recognized luminous species and indicating substantial evolutionary diversification within this lineage (Desjardin et al., 2010; Lu et al., 2024; Perry et al., 2024). In contrast, the Eoscyphella lineage exhibits extremely limited diversity, with only a single formally described species currently assigned to this group, emphasizing the highly uneven pattern of species distribution among the major evolutionary lineages of luminous fungi (Perry et al., 2024). Nevertheless, the limited species richness of the Lucentipes and Eoscyphella lineages should not be equated with ecological unimportance; related taxa may still harbor undocumented luminous members in under-sampled tropical ecosystems (Heinzelmann et al., 2024; Perry et al., 2024; Seas & Ávalos,2013).

4. Biochemical Mechanism of Fungal Bioluminescence

4.1. The Luciferin–Luciferase System

Fungal bioluminescence is mediated through a specialized substrate–enzyme system involving luciferin, the chemical substrate responsible for light generation, and luciferase, the enzyme that catalyses its oxidation (Desjardin et al., 2010; Kotlobay et al., 2018; Purtov et al., 2015). During the luminescent reaction, luciferin undergoes oxidation due to the existence of molecular oxygen through luciferase activity, resulting in the formation of an electronically excited oxyluciferin intermediate. As this intermediate returns to its ground-energy state, the released energy is emitted as visible green photons, with fungal bioluminescence typically exhibiting maximum emission between 520 and 530 nm (Kotlobay et al., 2018; O'Kane et al., 1990; Perry et al., 2024). In contrast to the firefly luciferase system, fungal luciferase-mediated light production proceeds without ATP consumption or the requirement for externally supplied cofactors, representing a metabolically economical mechanism that is biochemically distinct from the luciferin-based luminescent systems of beetles and marine organisms (Desjardin et al., 2010; Kotlobay et al., 2018; Stevani et al., 2013).

Of considerable ecological interest is the observation that the green emission peak coincides closely with the spectral sensitivity of nocturnal insects and penetrates forest vegetation effectively, raising plausible links to insect-vector attraction in nocturnal habitats (Adams et al., 2023; Perry et al., 2024; Sivinski, 1998). The cell- and tissue-level localisation of bioluminescence is also informative: Teranishi showed that, in Mycena chlorophos, light is largely emanated from the membranes of hymenium and basidia cells within the gill, with the emanation being both cell-specific and region-specific (Teranishi, 2015). Comparable tissue-level localisation patterns have been documented in Panellus stypticus, where O'Kane and colleagues showed that bioluminescence in the developing basidiocarp rises 10- to 50-fold during maturation and becomes concentrated along the cheilocystidia bordering the lamellae (O’Kane et al., 1990).

4.2. The Caffeic Acid Cycle

Current evidence indicates that fungal bioluminescence originates from a metabolic pathway centred on caffeic acid—an intermediate of the ubiquitous phenylpropanoid pathway in higher plants and many fungi (Desjardin et al., 2010; Kotlobay et al., 2018; Palkina et al., 2024). This finding explains why the fungal pathway is so readily transplantable into plant hosts, since caffeic acid is already synthesised within plant tissues (Khakhar et al., 2020; Kotlobay et al., 2018; Palkina et al., 2024). Tsarkova elaborated that fungal luciferin is biosynthesised by hydroxylation of hispidin, catalysed by a soluble NADPH-dependent hydroxylase, and that luciferin is subsequently oxidised by an insoluble luciferase in a reaction that requires no auxiliary cofactors (Desjardin et al., 2010). The fungal bioluminescence pathway is organised into four interconnected biochemical stages that together handle synthesis, activation, and regeneration of the light-emitting molecule:

i.

Biosynthesis of Hispidin: The pathway kicks off with conversion of caffeic acid into hispidin — a styrylpyrone compound generated through a polyketide-type biosynthetic reaction. Hispidin synthase catalyses this step, drawing on caffeoyl-CoA and malonyl-CoA as precursor substrates (Kotlobay et al., 2018; Palkina et al., 2024; Purtov et al., 2015) Palkina and colleagues recently found that homologous polyketide synthases in non-luminous fungi are also able to produce small quantities of hispidin as a metabolic by-product (Palkina et al., 2024). The implication is striking: ancestral fungal lineages may already have possessed the biochemical components that later got co-opted into building an efficient light-producing system.

ii.

Formation of Luciferin: In the next step, hispidin-3-hydroxylase (H3H) hydroxylates hispidin to yield 3-hydroxyhispidin — the actual functional luciferin of these fungi (Desjardin et al., 2010; Kotlobay et al., 2018; Purtov et al., 2015) Making the light precursor directly out of a broadly distributed phenolic precursor is a major biochemical advantage: no exotic accessory molecules, no specialised substrates. That simplicity is a big part of why the fungal system lends itself so well to metabolic engineering and heterologous expression (Khakhar et al., 2020; Kotlobay et al., 2018; Palkina et al., 2024)

iii.

Light Production: The photon-emitting reaction itself is catalysed by fungal luciferase, which oxidises luciferin in the presence of molecular oxygen to yield a highly unstable, electronically excited oxyluciferin intermediate (Desjardin et al., 2010; Kotlobay et al., 2018) Relaxation of this excited intermediate down to ground state releases the energy as green visible light, with peak emission typically falling between 520 and 530 nm (Desjardin et al., 2010; Kotlobay et al., 2018; Stevani et al., 2013) According to Tsarkova's mechanistic characterisation, the reaction involves oxygen incorporation into luciferin via cycloaddition to produce an α-pyrone endoperoxide intermediate, which then undergoes decarboxylation to yield fungal oxyluciferin — identified as caffeylpyruvate — accompanied by photon emission (Desjardin et al., 2010).

iv.

Recycling of Luciferin: What sets fungal bioluminescence apart from many other light-producing systems is its built-in capacity to regenerate the luciferin precursor. During this recycling step, caffeoylpyruvate hydrolase converts oxyluciferin back into caffeic acid — restoring the substrate needed to keep the cycle going (Desjardin et al., 2010; Kotlobay et al., 2018) Tsarkova's work confirmed that enzymatic hydrolysis of oxyluciferin regenerates caffeic acid, which then re-enters the styrylpyrone biosynthetic route to make more hispidin (Desjardin et al., 2010). This regenerative loop dramatically lowers the metabolic cost of sustained light output and lets fungi keep glowing for long stretches without exhausting their supply (Kotlobay et al., 2018; Stevani et al., 2013)

Unlike firefly bioluminescence — where luciferin molecules get irreversibly consumed at each catalytic turnover and have to be replenished continuously — the fungal system runs on a self-regenerating luciferin cycle (Kotlobay et al., 2018; Stevani et al., 2013). That metabolic recycling brings a major boost in energetic efficiency and is, in essence, why mushrooms can sustain a continuous glow rather than producing brief flashes.

Table 2. Enzymes involved in fungal bioluminescence (Desjardin et al., 2010; Kotlobay et al., 2018; Purtov et al., 2015).

Enzyme	Gene	Primary function
Hispidin Synthase	HispS	Catalyses biosynthesis of hispidin from caffeic acid and malonyl-CoA.
Hispidin-3-Hydroxylase	H3H	Hydroxylates hispidin to generate fungal luciferin (3-hydroxyhispidin).
Luciferase	Luz	Catalyses oxidation of luciferin by molecular oxygen, yielding photon emission.
Caffeoylpyruvate Hydrolase	CPH	Hydrolyses oxyluciferin (caffeylpyruvate) back to caffeic acid, completing the cycle.

Table 2. Enzymes involved in fungal bioluminescence (Desjardin et al., 2010; Kotlobay et al., 2018; Purtov et al., 2015).

Enzyme	Gene	Primary function
Hispidin Synthase	HispS	Catalyses biosynthesis of hispidin from caffeic acid and malonyl-CoA.
Hispidin-3-Hydroxylase	H3H	Hydroxylates hispidin to generate fungal luciferin (3-hydroxyhispidin).
Luciferase	Luz	Catalyses oxidation of luciferin by molecular oxygen, yielding photon emission.
Caffeoylpyruvate Hydrolase	CPH	Hydrolyses oxyluciferin (caffeylpyruvate) back to caffeic acid, completing the cycle.

Figure 2. Schematic representation of the Caffeic Acid Cycle underlying fungal bioluminescence. The pathway begins with the conversion of caffeic acid into hispidin by hispidin synthase. Subsequently, hispidin-3-hydroxylase (H3H) catalyses the hydroxylation of hispidin to form 3-hydroxyhispidin, the functional luciferin molecule responsible for fungal light production. Fungal luciferase then oxidizes luciferin in the presence of molecular oxygen, generating an unstable excited oxyluciferin intermediate that releases green photons with an emission maximum of approximately 520–530 nm. The subsequent oxyluciferin derivative, caffeoylpyruvate, is hydrolyzed by caffeoylpyruvate hydrolase to redevelop caffeic acid, completing the cyclic pathway and enabling continuous bioluminescence (adapted from Perry et al., 2024).

Figure 2. Schematic representation of the Caffeic Acid Cycle underlying fungal bioluminescence. The pathway begins with the conversion of caffeic acid into hispidin by hispidin synthase. Subsequently, hispidin-3-hydroxylase (H3H) catalyses the hydroxylation of hispidin to form 3-hydroxyhispidin, the functional luciferin molecule responsible for fungal light production. Fungal luciferase then oxidizes luciferin in the presence of molecular oxygen, generating an unstable excited oxyluciferin intermediate that releases green photons with an emission maximum of approximately 520–530 nm. The subsequent oxyluciferin derivative, caffeoylpyruvate, is hydrolyzed by caffeoylpyruvate hydrolase to redevelop caffeic acid, completing the cyclic pathway and enabling continuous bioluminescence (adapted from Perry et al., 2024).

5. Genetic Regulation of Fungal Bioluminescence

Working out the genetic architecture behind fungal luminescence has given us some of the most satisfying insights (Ke et al., 2020; Kotlobay et al., 2018; Lu et al., 2024). Comparative genomic work across distantly related Agaricales has shown that every luminous fungus so far examined carries a highly conserved biosynthetic gene cluster housing the four essential components of the caffeic acid cycle: HispS, H3H, Luz, and CPH. The fact that these genes sit close together on the chromosome points to coordinated regulation and functional integration of the entire luminescence pathway (Ke et al., 2020; Kotlobay et al., 2018; Palkina et al., 2024).

Through genome and transcriptome sequencing of multiple Mycena species, Ke and colleagues reconstructed the evolutionary history of the fungal luciferase cluster and identified conserved syntenic patterns linking diverse luminous lineages (Ke et al., 2020). Their analyses suggest that the pathway evolved via a sequence of genomic actions including two autonomous gene duplication events that contributed to the diversification of pathway components. Interestingly, the persistence of duplicated enzyme homologs in non-luminous fungi indicates that molecular diversification and functional specialization had already occurred before any detectable bioluminescence emerged (Ke et al., 2020; Palkina et al., 2024). In other words, the genetic toolkit for glow was lying around in ancestral fungi, just waiting to be wired up for light production. These findings offer an evolutionary explanation for why luminous species appear across apparently separated lineages — supporting the view that contemporary fungal bioluminescence traces back to a single common ancestral pathway rather than arising through multiple independent origins (Ke et al., 2020; Perry et al., 2024; Zheng et al., 2023).

Transcriptomic studies have added another layer. Fungal luminescence is tightly tied to developmental processes, with intensity varying according to growth stage and tissue type (Lu et al., 2024; Perry et al., 2024). In several Mycena species, expression of luminescence-associated genes peaks during basidiocarp maturation, while in Armillaria species, pathway activation is mostly seen in vegetative mycelial tissues (Ke et al., 2020; Lu et al., 2024; Perry et al., 2024). Earlier physiological investigations by O'Kane and colleagues demonstrated a substantial 10 to 50 fold increase in photon emission during basidiocarp development in Panellus stypticus (Desjardin et al., 2010). In mature and senescent basidiomes, luminescence became concentrated primarily on the pileus surface, early evidence that fungal light production is regulated in a highly stage-specific and tissue-dependent manner.

Environmental conditions exert a strong influence on the regulation and intensity of fungal bioluminescence. Temperature, oxygen tension, nutrient availability, moisture, oxidative stress and even circadian time all leave measurable imprints on luminescence intensity (Lu et al., 2024; Perry et al., 2024; Stevani et al., 2013). Berliner demonstrated in 1961 that dikaryotic cultures of Panus stipticus, Armillaria mellea and Mycena polygramma show consistent diurnal periodicity in light emission, with troughs between 6 and 9 a.m. and peaks between 6 and 9 p.m., irrespective of whether the cultures were kept in darkness, constant light or a usual day-night cycle (Berliner, 1961). This diurnal pattern anticipates the more recent discovery of formally circadian regulation in the glowing agaric Neonothopanus gardneri by Dunlap and Loros, who placed the luminescence rhythm in the broader context of conserved fungal clock machinery (FRQ, WC-1, WC-2) shared across Ascomycota and Basidiomycota (Dunlap & Loros, 2017). Comparable core circadian components have been detected in divergent lichen-forming fungi, pointing to a deeply conserved fungal timekeeping mechanism (Valim et al., 2022).

6. Ecological Significance of Fungal Bioluminescence

6.1. Attraction of Insect Vectors

By long-standing convention, the leading idea has been that bioluminescent basidiomes serve as visual cues for nocturnal insects, with the implicit assumption that insect visitors then help move spores between fruiting sites. Sticky-trap experiments have repeatedly demonstrated greater insect visitation to luminous basidiomes than to unlit controls. Adams and colleagues corroborated this observation in a Costa Rican oak forest, where model mushrooms fitted with green LEDs attracted significantly more invertebrates (chiefly Dipteran flies capable of dispersing fungal spores) than non-lit controls (Adams et al., 2023). Sivinski's broader review of arthropod phototaxis further emphasized that bioluminescent mycetophilid fungus gnats may themselves exploit Diptera's attraction to light, supporting an evolutionary web of luminous mimicry that benefits both fungi and their dispersers (Sivinski, 1998).

Species such as Neonothopanus gardneri are thought to benefit from enhanced insect-mediated dispersal under humid tropical forest conditions (Perry et al., 2024). Counterintuitively, however, Weinstein and colleagues showed that basidiomes of the Australian "Ghost Fungus" Omphalotus nidiformis glow continuously day and night during winter (June–July), when insect abundance is at its lowest (Weinstein et al., 2016). Across 480 trap-hours of moonless-night sticky-trap sampling, mean insect captures were 0.33 individuals per trap night for treatment traps (with bioluminescent bait) versus 0.54 for controls—a non-significant difference (Weinstein et al., 2016). These data suggest that the attraction hypothesis does not apply uniformly across species and that for O. nidiformis at least, luminescence may not be primarily a spore-dispersal signal (Weinstein et al., 2016).

6.2. Antioxidant Hypothesis

Wood decomposition generates substantial quantities of reactive oxygen species during lignin degradation (Stevani et al., 2013). Several investigators propose that fungal bioluminescence serves an antioxidant function by dissipating excess chemical energy released during oxidative metabolism (Lu et al., 2024; Stevani et al., 2013). Under this reading, fungal glow is essentially a metabolic consequence of detoxification machinery rather than a feature that evolved primarily for ecological communication or signaling.

6.3. Warning Signal

A less-explored but plausible hypothesis is that luminescence warns fungivorous insects and mammals about toxic secondary metabolites (Lu et al., 2024; Perry et al., 2024). Several luminous Omphalotus species, including Omphalotus olearius, produce poisonous sesquiterpenoids that can cause severe gastrointestinal distress in humans, and their glow may function analogously to the aposematic coloration observed in toxic insects and amphibians (Arnone et al., 1991; McCloud et al., 1996; Perry et al., 2024).

6.4. Metabolic By-Product

Weinstein and colleagues concluded that fungal bioluminescence may, in some lineages, simply be an incidental by-product of metabolism without direct adaptive value (Weinstein et al., 2016). Their O. nidiformis field study pointed to the possibility that the ecological role of glow varies amongst evolutionary lines, depending on factors such as wind, the abundance of insect vectors and microclimatic conditions (Weinstein et al., 2016). The plausibility of this interpretation is reinforced by Ke and colleagues' demonstration that the bioluminescence gene cluster has been repeatedly lost across the Agaricales, indicating that the trait carries fitness costs and benefits that vary between lineages (Ke et al., 2020; Ke & Tsai, 2021; Perry et al., 2024).

In aggregate, the available data advocate that no single hypothesis fully explains the diversity of luminous fungi; instead, glow is likely to be adaptive in some lineages and incidental in others, with the ecological role shaped by local biotic and abiotic conditions (Adams et al., 2023; Lu et al., 2024; Perry et al., 2024; Sivinski, 1998; Weinstein et al., 2016).

7. Global Distribution of Bioluminescent Fungi

In South America, Brazil represents the world's richest hotspot for bioluminescent fungi. Species including Neonothopanus gardneri, Mycena lucentipes and Mycena luxaeterna have been investigated extensively for their ecological and medicinal properties (Desjardin et al., 2010; Oliveira et al., 2025; Perry et al., 2024; Sangsopha et al., 2019; Wisetsai et al., 2021).

Asia possesses the second-highest diversity, with major centres in China, Japan, Malaysia, Thailand, Indonesia and India (Dutta et al., 2023; Karunarathna et al., 2020; Nugeraha et al., 2025; Perry et al., 2024). Japan alone accounts for 36 species, reflecting the depth of its mycological exploration (Karunarathna et al., 2020; Perry et al., 2024). Molecular phylogenetic work has documented novel Mycena species across Malaysia, Indonesia and, more recently, in the campus forest of IPB University in Indonesia—the first confirmed account of Mycena chlorophos from that country (Nugeraha et al., 2025). Sun demonstrated utility of ITS sequencing for confirming species identity, comparing Taiwanese vouchered specimens and field collections through RFLP and sequence analysis (Sun, 2013). India is also an important centre of fungal biodiversity, with several bioluminescent species reported, including Omphalotus olearius, Mycena chlorophos, Mycena deeptha, Armillaria mellea, and Roridomyces phyllostachydis (Karunarathna et al., 2020; Dutta et al., 2023).

Australia hosts several well-known luminous species, of which the "Ghost Fungus" Omphalotus nidiformis has become an important model organism for ecological and circadian-regulatory studies (Perry et al., 2024; Weinstein et al., 2016). Illudane derivatives from Australian Omphalotus nidiformis cultures have been characterised by Burgess and colleagues (Burgess et al., 1999).

Europe supports relatively fewer luminous fungi due to its cooler climate, but Armillaria mellea, Mycena rosea, Panellus stipticus and Xylaria hypoxylon remain important representatives (Heinzelmann et al., 2024; Perry et al., 2024; Petersen & Bermudes, 1992). The recent discovery of bioluminescence in Mycena crocata from Switzerland indicates the continent's cataloguing is far from complete (Heinzelmann et al., 2024).

North America contains numerous Armillaria species, Mycena galopus and several other luminous taxa inhabiting deciduous forests, along with the geographically interbreeding populations of Panellus stypticus documented by Petersen and Bermudes (Lu et al., 2024; Perry et al., 2024; Petersen & Bermudes, 1992). The continent also harbours the well-characterised Omphalotus olivascens, whose spore-derived isolates show pronounced phenotypic and metabolite variation, including production of illudin-class anticancer compounds (Diaz & Bermudes, 2025).

In Central America, the wet forests of Costa Rica, sampled systematically at La Selva Biological Station across old-growth and secondary stands on four soil types, yielded 61 bioluminescent fungal samples distributed across litter, fallen branches, dead trunks and roots, with occurrence significantly related to soil type (Seas & Ávalos, 2013).

Table 3. Representative bioluminescent fungi and their global distribution.

Species	Family	Bioluminescent structure	Major distribution	Reported biological importance
Neonothopanus gardneri	Marasmiaceae	Mycelium and basidiome	Brazil	Anthelmintic (Fischer-Carvalho et al., 2025; Oliveira et al., 2025); ecotoxicology (Ventura et al., 2021)
Neonothopanus nambi	Marasmiaceae	Mycelium and basidiome	Southeast Asia	Antibacterial, anticancer (Sangsopha et al., 2019; Wisetsai et al., 2021); nematode suppression (Namanusart, 2017; Namanusart et al., 2016)
Omphalotus nidiformis	Marasmiaceae	Basidiome	Australia	Antioxidant constituents (Jose & Radhamany, 2012); illudane chemistry (Burgess et al., 1999); ecological by-product hypothesis (Weinstein et al., 2016)
Omphalotus olearius	Marasmiaceae	Basidiome	Europe, India	Illudin sesquiterpenoids (Arnone et al., 1991; McCloud et al., 1996); antioxidant activity (Kalyoncu et al., 2010)
Mycena chlorophos	Mycenaceae	Basidiome	Japan, Malaysia, Indonesia, India, Taiwan	Tissue-level imaging (Teranishi, 2015); first record from Western Ghats of India (Karunarathna et al., 2020; Nugeraha et al., 2025; Sun, 2013)
Mycena luxaeterna	Mycenaceae	Whole basidiome	Brazil	Evolutionary biology (Desjardin et al., 2010; Perry et al., 2024)
Mycena lucentipes	Mycenaceae	Whole basidiome	Brazil	Taxonomy (Desjardin et al., 2010; Perry et al., 2024)
Armillaria mellea	Physalacriaceae	Mycelium	Europe, North America	Acute toxicity bioassays (Weitz et al., 2002); diurnal periodicity (Berliner, 1961)
Roridomyces phyllostachydis	Mycenaceae	Basidiome	Northeast India	Biodiversity conservation (Dutta et al., 2023; Karunarathna et al., 2020)

Table 3. Representative bioluminescent fungi and their global distribution.

Species	Family	Bioluminescent structure	Major distribution	Reported biological importance
Neonothopanus gardneri	Marasmiaceae	Mycelium and basidiome	Brazil	Anthelmintic (Fischer-Carvalho et al., 2025; Oliveira et al., 2025); ecotoxicology (Ventura et al., 2021)
Neonothopanus nambi	Marasmiaceae	Mycelium and basidiome	Southeast Asia	Antibacterial, anticancer (Sangsopha et al., 2019; Wisetsai et al., 2021); nematode suppression (Namanusart, 2017; Namanusart et al., 2016)
Omphalotus nidiformis	Marasmiaceae	Basidiome	Australia	Antioxidant constituents (Jose & Radhamany, 2012); illudane chemistry (Burgess et al., 1999); ecological by-product hypothesis (Weinstein et al., 2016)
Omphalotus olearius	Marasmiaceae	Basidiome	Europe, India	Illudin sesquiterpenoids (Arnone et al., 1991; McCloud et al., 1996); antioxidant activity (Kalyoncu et al., 2010)
Mycena chlorophos	Mycenaceae	Basidiome	Japan, Malaysia, Indonesia, India, Taiwan	Tissue-level imaging (Teranishi, 2015); first record from Western Ghats of India (Karunarathna et al., 2020; Nugeraha et al., 2025; Sun, 2013)
Mycena luxaeterna	Mycenaceae	Whole basidiome	Brazil	Evolutionary biology (Desjardin et al., 2010; Perry et al., 2024)
Mycena lucentipes	Mycenaceae	Whole basidiome	Brazil	Taxonomy (Desjardin et al., 2010; Perry et al., 2024)
Armillaria mellea	Physalacriaceae	Mycelium	Europe, North America	Acute toxicity bioassays (Weitz et al., 2002); diurnal periodicity (Berliner, 1961)
Roridomyces phyllostachydis	Mycenaceae	Basidiome	Northeast India	Biodiversity conservation (Dutta et al., 2023; Karunarathna et al., 2020)

Figure 3. Global distribution map of bioluminescent fungi highlighting major biodiversity hotspots (adapted from Perry et al., 2024). Notes: Regional pie charts represent the number of species reported from each geographic region. Because several species occur in more than one region, regional totals are not additive and therefore exceed the global total of 132 unique described species.

Figure 3. Global distribution map of bioluminescent fungi highlighting major biodiversity hotspots (adapted from Perry et al., 2024). Notes: Regional pie charts represent the number of species reported from each geographic region. Because several species occur in more than one region, regional totals are not additive and therefore exceed the global total of 132 unique described species.

8. Medicinal Potential of Bioluminescent Mushrooms

Medicinal mushrooms have attracted considerable scientific attention over recent decades because their secondary metabolomes harbour an extraordinary diversity of bioactive small molecules and complex glycans (Table 4) (Chang & Wasser, 2012; Wasser, 2014; Zhao et al., 2020).

8.1. Antioxidant Activity

Numerous chronic illnesses, including cardiovascular disease, neurodegeneration, diabetes, inflammatory conditions, and cancer—have been linked to oxidative stress in their underlying pathology (Jose & Radhamany, 2012; Kalyoncu et al., 2010; Ma et al., 2014). Bioluminescent fungi synthesise numerous phenolics, flavonoids, terpenoids and other redox-active metabolites capable of scavenging reactive oxygen species (Jose & Radhamany, 2012; Kalyoncu et al., 2010; Liu et al., 2004; Sofian et al., 2021; Yang et al., 2004). One of the earliest targeted studies, by Jose and Radhamany, examined a luminous mushroom from Kerala and identified it as Omphalotus nidiformis—representing the first confirmed record from that region. The methanolic extract contained a total phenolic content of (1.901 ± 0.011) mg gallic acid equivalents per gram and a flavonoid content of 0.29 mg quercetin equivalent per gram of dried extract; the authors also reported active compounds including phenols, flavonoids, alkaloids, terpenoids and saponins, a radical scavenging IC₅₀ of 450 µg/mL, and TLC-DPPH evidence for antioxidant constituents (Jose & Radhamany, 2012). From a broader comparative vantage point, Kalyoncu and colleagues reported variable antioxidant capacity in mycelial extracts prepared in ethanol, chloroform, and water drawn from 21 wild mushroom species and measured by DPPH and ABTS assays. Among the evaluated taxa, Omphalotus olearius emerged with the strongest antioxidant activity in their panel, illustrating just how much variation in bioactive metabolite profiles exists across wild mushroom taxa (Jose & Radhamany, 2012; Kalyoncu et al., 2010).

Independent work on p-terphenyl scaffolds closely related to compounds isolated from Neonothopanus nambi has corroborated these observations. Liu and colleagues reported that natural p-terphenyl derivatives from edible Thelephora, Boletopsis and related mushrooms can achieve highly competitive DPPH radical-scavenging activity, with the highest-potency derivative reaching an EC₅₀ of 0.07—well below the reference compounds butylated hydroxyanisole (EC₅₀ 0.09) and α-tocopherol (EC₅₀ 0.25) (Liu et al., 2004). Parallel work by Yang and colleagues on poly(phenylacetyloxy)-substituted terphenyls from Thelephora ganbajun found IC₅₀ values of 400, 48 and 54 µM for lipid peroxidation and EC₅₀ values of 182, 74 and 204 µM for superoxide dismutase activity (Yang et al., 2004). Sofian and colleagues isolated a new acetyl p-terphenyl-boletopsin 15 from Boletopsis leucomelas along with four known analogues, with two compounds showing EC₅₀ values of 2.1 and 6.6 µM in DPPH assays (Sofian et al., 2021). More broadly, Ma and colleagues showed that ten compounds from the edible mushroom Sarcodon leucopus, including two new sarcoviolins and a new p-terphenyl derivative, possess broad antioxidant activity alongside striking α-glucosidase inhibition (with the most potent inhibitor reaching IC₅₀ 0.58 µM) (Ma et al., 2014).

8.2. Antibacterial Activity

Among the species currently under investigation, Neonothopanus nambi has shown particularly promising antibacterial properties (Sangsopha et al., 2019; Wisetsai et al., 2021). Wisetsai et al. (2021) isolated eight scalarane sesterterpenoids from cultured mycelia and assessed their activity against both Gram-positive and Gram-negative bacteria. Compound 8 (nambiscalarane) inhibited Bacillus subtilis growth with an MIC of 8 µg/mL, comparable to that of the standard antibiotic kanamycin (Wisetsai et al., 2021). Significant activity was also observed against Bacillus cereus and Staphylococcus aureus, whereas efficacy against Gram-negative strains was more limited (Wisetsai et al., 2021).

The proposed antibacterial apparatus encompasses interruption of bacterial membrane integrity and inhibition of key metabolic pathways; the structural novelty of these compounds relative to conventional antibiotics suggests they may offer viable alternatives in combating antimicrobial resistance (Miethke et al., 2021; Moloney, 2016; Wisetsai et al., 2021). Terpene-derived molecular frameworks, including omphalotins isolated from Omphalotus species, represent another important class of fungal metabolites recognised for their potent nematicidal properties and their status as structurally distinctive eukaryotic natural products. Moving any of these bioactive compounds into actual therapeutic applications, however, will require a substantial pipeline of work compound purification, structural optimisation, pharmacokinetic evaluation and detailed toxicity profiling, all of which are needed to establish their safety, efficacy, and clinical feasibility (Rossiter et al., 2017; Sangsopha et al., 2019; Stadler & Hoffmeister, 2015; Wisetsai et al., 2021).

8.3. Anticancer Potential

The most compelling evidence currently comes from investigations on Neonothopanus nambi (Sangsopha et al., 2019; Wisetsai et al., 2021). Wisetsai and colleagues reported that compounds 3, 5 and 7 exhibited strong cytotoxicity against the HCT-116 cell line, with IC₅₀ values ranging from 13.41 to 16.53 µM, and exhibited no cytotoxicity to Vero cells—an indication of selectivity for the carcinoma line (Wisetsai et al., 2021). Furthermore, Sangsopha and colleagues isolated two new p-terphenyls (neonambiterphenyls A and B), a novel benzoquinone (neonambiquinone A) and six identified sesquiterpenes from the bioluminescent mushroom N. nambi PW3, with cytotoxicity against the KB, NCI-H187 and MCF-7 cancer cell lines yielding IC₅₀ values from 1.45 to 49.31 µg/mL (Sangsopha et al., 2019).

Mechanistically, the anticancer activity of these metabolites is believed to involve induction of apoptosis, mitochondrial dysfunction, oxidative stress, inhibition of DNA synthesis and disruption of cell-cycle development themes reinforced by parallel work on related basidiomycete taxa, including illudin-class sesquiterpenes from Omphalotus species, where illudin S and illudin M have been isolated for further pharmacological development (Burgess et al., 1999; Diaz & Bermudes, 2025; McCloud et al., 1996; Quin et al., 2014; Stadler & Hoffmeister, 2015). Diaz and Bermudes documented anticancer activity against MDA-MB-468 breast cancer cells from haploid Omphalotus olivascens isolates alongside antibiotic activity against Mycobacterium smegmatis consistent with illudin M (Diaz & Bermudes, 2025). Spore-derived strains of Omphalotus olivascens have demonstrated considerable phenotypic and physiological diversity, including strain-specific differences in luminescence enhancement following caffeic acid supplementation. These observations highlight the underlying genetic flexibility associated with secondary metabolite biosynthesis and regulation within this genus. Providing further molecular insight, Quin and colleagues revealed that the terpenome of Omphalotus olearius contains ten sesquiterpene synthase genes that drive complex cyclization reactions, leading to the formation of Δ⁶-protoilludene and its downstream derivatives, including the anticancer compounds known as illudins. More broadly, investigations into medicinal mushrooms have revealed that high-molecular-weight polysaccharides produced by related basidiomycetes, including Lentinus edodes, possess notable anticancer potential through mechanisms such as ROS-mediated mitochondrial apoptosis induction and suppression of tubulin polymerization in H22-bearing mice.

8.4. Anthelmintic Activity

Among the most significant recent discoveries involving luminous fungi is the identification of potent antiparasitic compounds from Neonothopanus gardneri (Fischer-Carvalho et al., 2025; Oliveira et al., 2025). Oliveira and colleagues isolated five metabolites from the fruiting body of N. gardneri, including the new compounds (8E,10E,12S,13S)-12,13-dihydroxy-7-oxo-octadeca-8,10-dienoic acid and (7S,8S,9E,11E)-7,8-dihydroxy-13-oxo-octadeca-9,11-dienoic acid together with three previously described compounds one of which, (7R,8R,9Z)-7,8-dihydroxyoctadec-9-enoic acid (compound 3), exhibited substantial antiparasitic activity against adult male Schistosoma mansoni worms with an EC₅₀ < 10 µM (Oliveira et al., 2025). Crucially, no toxicity was detected in the cells of mammal or in Caenorhabditis elegans (Oliveira et al., 2025). Fischer-Carvalho and colleagues emphasised, in their review of animal-derived natural products against schistosomiasis, that praziquantel resistance has already been reported and that the therapeutic pipeline is critically thin, justifying intensive bioprospecting of neglected organisms such as luminous fungi (Fischer-Carvalho et al., 2025).

These findings represent the first report demonstrating that a naturally bioluminescent mushroom produces selective antischistosomal metabolites suitable for downstream drug development (Fischer-Carvalho et al., 2025; Oliveira et al., 2025). The favourable therapeutic index further motivates continued exploration through appropriate animal models and, ideally, eventual clinical studies (Oliveira et al., 2025).

8.5. Immunomodulatory Activity

A substantial fraction of medicinal mushrooms appears to deliver their therapeutic benefits primarily by regulating host immune function rather than through direct antimicrobial action (Chang & Wasser, 2012; Wasser, 2014; Zhao et al., 2020). Although immunological investigations involving luminous fungi remain comparatively limited, preliminary studies on Neonothopanus gardneri indicate immunomodulatory activity associated with its polysaccharides and secondary metabolites (Oliveira et al., 2025). Reported biological effects include activation of macrophages, regulation of inflammatory cytokines, stimulation of innate immunity and enhancement of host defence mechanisms (Oliveira et al., 2025; Sangsopha et al., 2019; Zhao et al., 2020). Future studies employing transcriptomics and cytokine profiling shall be essential to detect the explicit immunologically active compounds and their modes of action (Wasser, 2014; Zhao et al., 2020).

8.6. Anti-Inflammatory Activity

Chronic inflammation contributes significantly to cardiovascular ailment, arthritis, diabetes, neurodegenerative conditions and cancer (Elsayed et al., 2014; Rowaiye et al., 2022). Several metabolites isolated from luminous mushrooms exhibit structural similarities to known anti-inflammatory natural products. Current evidence supports inhibition of inflammatory mediators including nitric oxide, cyclooxygenase-dependent pathways, reactive oxygen species and pro-inflammatory cytokines (Elsayed et al., 2014; Jose & Radhamany, 2012; Rowaiye et al., 2022; Sangsopha et al., 2019). Rowaiye and colleagues synthesised the picture, showing that mushroom-sourced terpenes, sterols, fatty acids and phenolics act on multiple inflammatory signalling pathways, including suppression of cyclooxygenase products and pro-inflammatory cytokines in both cellular and animal models (Rowaiye et al., 2022). Elsayed and colleagues additionally catalogued the rich chemical space of mushroom anti-inflammatory constituents, emphasising that inflammation inhibition is a near-universal property among well-characterised medicinal-mushroom taxa (Elsayed et al., 2014).

8.7. Antileishmanial Activity

Leishmaniasis remains an important neglected tropical disease affecting several million people across nearly 100 endemic countries (Bhattacharya & Paul, 2024; Gervazoni et al., 2020; Polonio, 1998; Sakyi et al., 2021). Preliminary laboratory evidence suggests that extracts from Neonothopanus gardneri may exhibit inhibitory activity against Leishmania species, although purification of the responsible compounds remains incomplete (Bhattacharya & Paul, 2024; Oliveira et al., 2025). Comparative evidence from other basidiomycetes is encouraging: Peretz and colleagues showed that aqueous, ethanolic, polysaccharide and polyphenolic fractions of Morchella importuna extracts killed Leishmania tropica promastigotes in vitro in a dose-dependent manner without cytotoxicity against human macrophages (Peretz et al., 2018). Sakyi and colleagues synthesised a decade of natural-product antileishmanial research, documenting alkaloids, terpenes and phenolics with calcium-channel-inhibitory, immunomodulatory and apoptosis-inducing activities against Leishmania (Sakyi et al., 2021), while Gervazoni and colleagues focused on clinically relevant natural products for leishmaniasis chemotherapy, noting the increasingly problematic resistance to pentavalent antimonials (Gervazoni et al., 2020). All these explanations suggest that fungal metabolites—and luminous mushrooms in particular—may eventually contribute to the antileishmanial pipeline, although considerably more chemistry and pharmacology will be required before clinical translation becomes realistic (Bhattacharya & Paul, 2024; Gervazoni et al., 2020; Peretz et al., 2018; Polonio, 1998; Sakyi et al., 2021).

8.8. Other Potential Therapeutic Applications

Emerging evidence suggests additional applications, including antiviral agents, antifungal compounds, wound healing, dermatological preparations, metabolic disease management and neuroprotective agents (Chang & Wasser, 2012; Sangsopha et al., 2019; Sivinski, 1998; Wasser, 2014; Wisetsai et al., 2021). Advances in metabolomics and integrative multi-omics are expected to reveal many additional bioactive metabolites from luminous fungi over the coming decade (Lu et al., 2024; Perry et al., 2024).

9. Agricultural Applications

9.1. Biological Control of Plant-Parasitic Nematodes

Among the world's most harmful agricultural pests are root-knot nematodes species belonging to the genus Meloidogyne (Namanusart, 2017; Namanusart et al., 2016). Namanusart and colleagues demonstrated through a series of elegant experiments that spawn and culture filtrates of Neonothopanus nambi dramatically reduced root galling and juvenile nematode populations in tomato (Namanusart, 2017; Namanusart et al., 2016). Split-root experiments disclosed that tomato roots treated with the mixture of culture filtrate along with spawn (CF+SP) and with spawn alone minimized nematode penetration by 92.3% and 83.5%, respectively, while both treatments minimized root galls by 3.5% after 10 days of exposure (Namanusart, 2017; Namanusart et al., 2016). Greenhouse trials further demonstrated root-gall reductions of 1.50% and 1.00% when culture filtrate and spawn were applied 10 days before nematode inoculation, with the lowest infective-larva counts achieved by combined 15 ml CF + 15 g SP treatments—substantially below the 1,036 larvae per gram of roots recorded for controls (Namanusart, 2017).

Earlier work by Bua-art established that bioactive compounds from N. nambi at 500 mg/L caused 100% mortality of M. incognita second-stage juveniles (J2) within one minute in vitro, while concentrations of 100 and 50 mg/L achieved 100% mortality within 30 minutes and 48 hours respectively (Bua-art, 2010). Greenhouse trials confirmed that 100 and 500 mg/L suppressed J2 and prevented root-knot symptom formation on tomato, compared with root-knot scores of 4 in untreated controls (Bua-art, 2010). Parallel nematicidal activity has been documented in other basidiomycetes—for example, Chuixu and colleagues showed that Stropharia sp. 1.2052 achieved 100% inhibition of M. incognita J2 and Panagrellus redivivus in vitro within 24 hours and reduced root-knots in tomato by 68.16–84.19% within one month under pot conditions (Chuixu et al., 2013). Stadler and Hoffmeister catalogue the omphalotins from Omphalotus as another class of basidiomycete cyclopeptides with pronounced nematicidal activity against root-knot nematodes (Stadler & Hoffmeister, 2015).

9.2. Induced Disease Resistance

Beyond direct toxicity to nematodes, luminous fungi trigger host defence responses through activation of plant immune pathways (Choudhary et al., 2007; Fatima & Anjum, 2017; Jayapala et al., 2019; Namanusart et al., 2016). Microbial metabolites can stimulate lignification, phytoalexin production, the oxidative burst, defence-related enzymes and systemic acquired resistance, all of which contribute to integrated disease management (Mariutto et al., 2011; Rachidi et al., 2021). Jayapala and colleagues showed that rhizobacterial priming of chilli plants with Bacillus spp. strongly elevates the activities of PAL, POX, PPO, LOX, chitinase and total phenol content, illustrating the conserved architecture of induced resistance (Jayapala et al., 2019). Fatima and Anjum documented parallel PAL enhancement in tomato using a Pseudomonas aeruginosa PM12 ISR determinant (Fatima & Anjum, 2017), while Choudhary provided a comprehensive review of bacterial-mediated ISR with reference to lignification and phenolics accumulation (Choudhary et al., 2007). Rachidi and colleagues demonstrated that microalgal polysaccharides induce both SAR and ISR through PR2 and PR3 transcript overexpression together with chitinase and glucanase accumulation, providing a useful non-microbial parallel that emphasises the broad relevance of the ISR framework to fungal elicitors (Rachidi et al., 2021). Mariutto and colleagues showed that Pseudomonas putida BTP1 stimulates two lipoxygenase isoforms as part of systemic resistance in tomato and bean (Mariutto et al., 2011).

9.3. Eco-Friendly Biopesticides

Because natural metabolites from luminous mushrooms exhibit nematicidal, antibacterial, antifungal and insecticidal activities and are largely biodegradable, they represent attractive candidates for environmentally compatible biopesticides (Bua-art, 2017; Chuixu et al., 2013; Stadler & Hoffmeister, 2015). Bua-art demonstrated that N. nambi bioactive compounds at 10–500 mg/L were highly toxic to M. incognita (causing 100% mortality) while leaving the entomopathogenic nematode Steinernema carpocapsae, the composting fungus Aspergillus sp., the biocontrol agent Trichoderma harzianum, Bacillus subtilis and the nitrogen-fixing Rhizobium sp. unaffected; only the highest concentration produced inhibition zones against the plant pathogens Pythium sp. and Phytophthora palmivora (Bua-art, 2017). This selectivity is essential because non-target toxicity would compromise any practical deployment; the mushroom-derived compounds appear to satisfy this critical criterion (Bua-art, 2017; Namanusart, 2017; Namanusart et al., 2016). Pharmacological scaffolds originating from basidiomycetes—pleuromutilins, omphalotins, illudins—provide additional precedent for fungal-derived biopesticide leads, as reviewed by Stadler and Hoffmeister (Stadler & Hoffmeister, 2015).

9.4. Sustainable Agriculture

Potential agricultural applications extend beyond nematode control to seed treatment, soil amendment, biofertilisation, microbial consortia and integrated pest management (Jayapala et al., 2019; Modern Biotechnological Approaches for Stress Resistance in Fruit Crops, n.d.; Namanusart, 2017; Namanusart et al., 2016). The convergence of mushroom-derived bioactive chemistry with modern biotechnological approaches to stress resistance in fruit crops (Modern Biotechnological Approaches for Stress Resistance in Fruit Crops, n.d.) and the documented efficacy of Priyashantha-style fungal elicitors (Fatima & Anjum, 2017; Jayapala et al., 2019; Mariutto et al., 2011; Rachidi et al., 2021) suggest that luminous-mushroom-based products could have a meaningful part in future sustainable agriculture frameworks.

Figure 4. Agricultural applications of bioluminescent fungi, including induced systemic resistance, biological nematode control and sustainable crop protection.

Figure 4. Agricultural applications of bioluminescent fungi, including induced systemic resistance, biological nematode control and sustainable crop protection.

Table 5. Agricultural applications of bioluminescent fungi.

Application	Species	Target	Expected benefit
Nematode control	Neonothopanus nambi	Meloidogyne incognita	Reduced galling (1.50%) and penetration (92.3% with CF+SP) (Bua-art, 2010; Namanusart, 2017; Namanusart et al., 2016)
Induced systemic resistance	Neonothopanus nambi	Tomato	Enhanced PAL, PPO, chitinase, salicylic acid (Fatima & Anjum, 2017; Jayapala et al., 2019; Namanusart et al., 2016)
Nematicidal biopesticide	Omphalotus olearius and other Omphalotaceae	Plant nematodes	Eco-friendly control via omphalotins (Chuixu et al., 2013; Kalyoncu et al., 2010; Stadler & Hoffmeister, 2015)
Soil health and integrated pest management	Multiple species	Soil microbiome	Improved sustainability; selectivity avoids non-target toxicity (Bua-art, 2017; Namanusart, 2017; Namanusart et al., 2016)

Table 5. Agricultural applications of bioluminescent fungi.

Application	Species	Target	Expected benefit
Nematode control	Neonothopanus nambi	Meloidogyne incognita	Reduced galling (1.50%) and penetration (92.3% with CF+SP) (Bua-art, 2010; Namanusart, 2017; Namanusart et al., 2016)
Induced systemic resistance	Neonothopanus nambi	Tomato	Enhanced PAL, PPO, chitinase, salicylic acid (Fatima & Anjum, 2017; Jayapala et al., 2019; Namanusart et al., 2016)
Nematicidal biopesticide	Omphalotus olearius and other Omphalotaceae	Plant nematodes	Eco-friendly control via omphalotins (Chuixu et al., 2013; Kalyoncu et al., 2010; Stadler & Hoffmeister, 2015)
Soil health and integrated pest management	Multiple species	Soil microbiome	Improved sustainability; selectivity avoids non-target toxicity (Bua-art, 2017; Namanusart, 2017; Namanusart et al., 2016)

10. Environmental Applications

10.1. Biosensors

Fungal bioluminescence has been successfully deployed to detect heavy metals, pesticides, industrial pollutants, and phenolic compounds in soil and aqueous matrices (Mendes & Stevani, 2009; Soares et al., 2022; Stevani et al., 2013; Ventura et al., 2021; Weitz et al., 2002). Ventura and colleagues demonstrated that a 24-hour difference in total light emitted by mycelium of Neonothopanus gardneri constitutes a useful toxicity endpoint, with luminescence serving as a promptly detectable signal for ecotoxicological assays (Ventura et al., 2021). Mendes and Stevani had earlier established a complementary method using Gerronema viridilucens in agar medium, deriving a metal toxicity series Cd > Cu > Mn ≈ Ni ≈ Co > Zn > Mg > Li(I) > K(I) ≈ Na(I) > Ca based on bioluminescence intensity loss (Mendes & Stevani, 2009). Weitz and colleagues further showed that the bioluminescent fungi Armillaria mellea and Mycena citricolor could be used to evaluate toxicity of 3,5-dichlorophenol, pentachlorophenol, copper and zinc, with EC₅₀ values comparable to those obtained from bacterial and yeast bioluminescent biosensors for several toxicants (notably Zn for A. mellea) (Weitz et al., 2002). Park and Park extended this approach to Panellus stipticus, demonstrating that increased lead-oxide concentrations produce statistically noteworthy decreases in bioluminescence intensity, supporting the use of P. stipticus as a sustainable bioindicator for lead contamination in soil (Park & Park, 2026).

10.2. Ecotoxicology

The Ventura et al. study established that Neonothopanus gardneri exhibits exceptionally high sensitivity to Cd (EC₅₀ = (8.0 ± 0.5) × 10⁻³ mM), followed in rank order by 4-nitrophenol, phenol and Cu (Ventura et al., 2021). Compared with conventional growth-based assays that require several days of incubation, luminescence-based fungal bioassays provide toxicity results within hours, dramatically shortening turnaround time and improving throughput (Soares et al., 2022; Stevani et al., 2013; Ventura et al., 2021). A comprehensive review by Soares and colleagues catalogued fungal bioluminescence bioassays for environmental monitoring, identifying the Omphalotus-lineage fungus N. gardneri as the most sensitive, predictable and repeatable of the available test organisms (Soares et al., 2022).

10.3. Heavy Metal Monitoring

Metal ions including cadmium, copper, iron, zinc, mercury and lead markedly reduce fungal luminescence, enabling continuous monitoring of contaminated ecosystems (Table 6) (Ihsan & Ratnawulan, 2020; Mendes & Stevani, 2009; Ventura et al., 2021). Ihsan and Ratnawulan measured luminescence intensity of a Neonothopanus sp. from the South Coastal Forest area of West Sumatra at a maximum intensity of 499.6 a.u. occurring at 505 nm—consistent with the green emission characteristic of luminous mushrooms—and ranked the inhibitory consequence of heavy metals on bioluminescence intensity as Cu > Fe > Zn > Pb (Ihsan & Ratnawulan, 2020). Mendelian logic would suggest greater toxicity at higher concentrations; the data bear this out, with the inhibition coefficient decreasing as heavy-metal concentration increases and being highest for Cu, followed by Fe, Zn and Pb (Ihsan & Ratnawulan, 2020). These observations collectively confirm that bioluminescent fungi can serve as field-deployable, low-cost toxicity sentinels for heavy-metal contamination in tropical soils (Ihsan & Ratnawulan, 2020; Mendes & Stevani, 2009; Park & Park, 2026; Soares et al., 2022; Ventura et al., 2021; Weitz et al., 2002).

11. Biotechnological Applications

11.1. Reporter Gene Technology

Fungal luciferase genes enable continuous monitoring of gene expression, promoter activity, circadian rhythms and developmental biology without external substrate addition (Khakhar et al., 2020; Kotlobay et al., 2018; Shakhova et al., 2024; Zheng et al., 2023). Palkina and colleagues reported the discovery of compact hispidin synthases from plants that are interchangeable with the fungal HispS, opening routes to viral-vector delivery and dramatically smaller genetic payloads for autoluminescent mammalian and yeast cells (Palkina et al., 2024). Shakhova and colleagues developed an improved pathway variant (FBP1*/2/3) carrying a more catalytically efficient mcitHispS, achieving superior brightness across multiple plant environments (Shakhova et al., 2024).

11.2. Synthetic Biology

Kotlobay and colleagues reported that introduction of the known fungal genes into the genome of the yeast Pichia pastoris, together with caffeic-acid biosynthesis genes, gave rise to a strain that is genuinely autoluminescent in standard media (Kotlobay et al., 2018; Syed & Anderson, 2021). The complete fungal bioluminescent pathway has since been transferred into tobacco, Arabidopsis and a wide range of vegetable crops, creating autonomously glowing multicellular eukaryotes without the aldehyde toxicity that limits bacterial lux systems (Khakhar et al., 2020; Li et al., 2025; Mitiouchkina et al., 2019; Shakhova et al., 2024; Yu et al., 2025; Zheng et al., 2023). Syed and Anderson synthesised the breadth of FBP applications in a comprehensive review that places the pathway in the wider context of contemporary bioluminescent biotechnology (Syed & Anderson, 2021).

11.3. Self-Luminescent Plants

The fungal bioluminescent system, only recently discovered, was incorporated into tobacco plants by Mitiouchkina and colleagues, who thereby demonstrated self-sustaining luminescence in a multicellular eukaryote. Following the plants from germination to flowering, they observed luminescence across multiple timescales—from seconds to months—that correlated with developmental milestones, circadian rhythms, systemic transport, and mechanical injury (Dunlap & Loros, 2017; Mitiouchkina et al., 2019). Khakhar and colleagues demonstrated that the FBP can be deployed across a broad panel of plant species and tissues without external substrate addition, while also describing a affordable imaging platform for gene-expression profiling (Khakhar et al., 2020). Zheng and colleagues engineered a major enhancement by introducing BnC3'H1 (a Brassica napus 4-coumaroyl shikimate/quinate 3'-hydroxylase) and the NPGA null-pigment mutant of Aspergillus nidulans to create enhanced FBP ("eFBP") plants that emitted 3 × 10¹¹ photons/min/cm²—sufficient to illuminate surroundings and make text visible to the naked eye in darkness (Zheng et al., 2023). Yu et al. (2025) examined the molecular mechanisms, engineering approaches, and agricultural and horticultural applications of the fungal bioluminescence pathway (FBP), highlighting its future potential in areas such as real-time crop monitoring, sustainable urban illumination, and the development of bioluminescent ornamental plants. Complementing this perspective, Li et al. (2025) emphasized the versatility of the FBP as a highly sensitive quantitative reporter platform, bridging fundamental biological research with practical technological and commercial applications.

11.4. Molecular Imaging

Potential imaging applications include tumour imaging, infection monitoring, stem-cell tracking, drug screening and developmental biology studies (Ke & Tsai, 2021; Shakhova et al., 2024; Syed & Anderson, 2021). The compatibility of the FBP with mammalian cells (without external substrate) is especially valuable for longitudinal in vivo imaging, where conventional luciferase substrates impose logistical constraints (Mitiouchkina et al., 2019; Syed & Anderson, 2021).

11.5. Biomedical Engineering

Emerging applications involve wound monitoring, tissue regeneration, biosensing implants, smart diagnostics and personalised medicine (Ke & Tsai, 2021; Palkina et al., 2024; Syed & Anderson, 2021). The compact plant-derived HispS orthologues identified by Palkina and colleagues may prove especially valuable for viral vehicle delivery of autoluminescence in clinical contexts (Palkina et al., 2024).

Table 7. Major biotechnological applications of fungal bioluminescence.

Field	Application	Reference
Molecular biology	Self-sustained reporters and circadian imaging	(Khakhar et al., 2020; Kotlobay et al., 2018; Shakhova et al., 2024; Zheng et al., 2023)
Medicine	Disease imaging without external substrate	(Mitiouchkina et al., 2019; Syed & Anderson, 2021)
Drug discovery	High-throughput screening of autoluminescent cells	(Shakhova et al., 2024; Syed & Anderson, 2021)
Agriculture	Glowing disease-resistant crops; smart monitoring	(Khakhar et al., 2020; Mitiouchkina et al., 2019; Modern Biotechnological Approaches for Stress Resistance in Fruit Crops, n.d.; Yu et al., 2025)
Environmental science	Living biosensors for soil and water toxicants	(Ihsan & Ratnawulan, 2020; Mendes & Stevani, 2009; Ventura et al., 2021)
Synthetic biology	Autonomous luminescent plants, yeast and mammals	(Khakhar et al., 2020; Kotlobay et al., 2018; Li et al., 2025; Mitiouchkina et al., 2019; Palkina et al., 2024; Shakhova et al., 2024)

Table 7. Major biotechnological applications of fungal bioluminescence.

Field	Application	Reference
Molecular biology	Self-sustained reporters and circadian imaging	(Khakhar et al., 2020; Kotlobay et al., 2018; Shakhova et al., 2024; Zheng et al., 2023)
Medicine	Disease imaging without external substrate	(Mitiouchkina et al., 2019; Syed & Anderson, 2021)
Drug discovery	High-throughput screening of autoluminescent cells	(Shakhova et al., 2024; Syed & Anderson, 2021)
Agriculture	Glowing disease-resistant crops; smart monitoring	(Khakhar et al., 2020; Mitiouchkina et al., 2019; Modern Biotechnological Approaches for Stress Resistance in Fruit Crops, n.d.; Yu et al., 2025)
Environmental science	Living biosensors for soil and water toxicants	(Ihsan & Ratnawulan, 2020; Mendes & Stevani, 2009; Ventura et al., 2021)
Synthetic biology	Autonomous luminescent plants, yeast and mammals	(Khakhar et al., 2020; Kotlobay et al., 2018; Li et al., 2025; Mitiouchkina et al., 2019; Palkina et al., 2024; Shakhova et al., 2024)

Figure 5. Environmental and biotechnological applications of fungal bioluminescence, including biosensors, ecotoxicology, molecular imaging, synthetic biology and self-luminous plants.

Figure 5. Environmental and biotechnological applications of fungal bioluminescence, including biosensors, ecotoxicology, molecular imaging, synthetic biology and self-luminous plants.

12. Current Challenges and Research Gaps

Despite substantial progress, research on bioluminescent fungi remains at a comparatively early stage (Lu et al., 2024). One major limitation is the modest number of formally described species, approximately 132 although molecular phylogenetic evidence suggests that many additional taxa remain undescribed, especially in tropical biodiversity hotspots where sampling effort has been chronically uneven (Dutta et al., 2023; Heinzelmann et al., 2024; Karunarathna et al., 2020; Nugeraha et al., 2025; Perry et al., 2024; Seas & Ávalos, 2013).

A major limitation in advancing bioluminescent fungi toward practical applications is the difficulty associated with their cultivation and biomass production. Many luminous species display slow growth rates, narrow ecological preferences, and unpredictable fruiting behaviour under artificial conditions, creating substantial technical barriers for large-scale cultivation and metabolite extraction (Lu et al., 2024; Perry et al., 2024; Stevani et al., 2013). In parallel, the chemical diversity of these organisms remains poorly investigated. Current metabolomic studies have focused predominantly on a limited number of species, particularly Neonothopanus gardneri and N. nambi, while the secondary metabolite landscapes of most other luminous fungal lineages remain largely unexplored (Jose & Radhamany, 2012; Oliveira et al., 2025; Sangsopha et al., 2019; Wisetsai et al., 2021).

Furthermore, most recorded pharmacological assets of bioluminescent fungi are based primarily on preliminary in vitro evaluations. Comprehensive in vivo studies, together with pharmacokinetic characterization, toxicity assessments, formulation strategies, and clinical investigations, are essential to determine their suitability for therapeutic development and translational applications (Oliveira et al., 2025; Sangsopha et al., 2019; Wasser, 2014; Wisetsai et al., 2021; Zhao et al., 2020). Despite considerable progress in identifying the core genes involved in fungal light production, the broader regulatory framework controlling pathway activation remains insufficiently understood. Detailed investigations into transcriptional regulation, environmental modulation, and evolutionary diversification of the bioluminescence system across Agaricales are still required to fully understand the complexity of this trait (Dunlap & Loros, 2017; Ke et al., 2020; Ke & Tsai, 2021; Kotlobay et al., 2018; Lu et al., 2024; Palkina et al., 2023).

As commercial and biotechnological interest in luminous fungi expands, additional considerations related to intellectual property protection, biodiversity conservation, sustainable utilization, and fair benefit-sharing mechanisms will become increasingly important. Establishing responsible frameworks for the exploration and commercialization of these unique biological resources will be essential to ensure that scientific advancement proceeds alongside ecological preservation and equitable resource management (Dutta et al., 2023; Karunarathna et al., 2020; Lu et al., 2024; Perry et al., 2024).

13. Future Prospects

The future trajectory of bioluminescent fungal research is highly encouraging, supported by rapid advances in genomics, transcriptomics, metabolomics, proteomics, synthetic biology, and artificial intelligence. The integration of these emerging technologies is expected to accelerate the discovery of novel biological functions, regulatory mechanisms, and applications of fungal luminescence across diverse scientific disciplines. A summary of the key potential areas is given in Table 8.

In the biomedical field, continued investigation of luminous fungi is likely to uncover new classes of bioactive molecules with antibiotic, anticancer, antiparasitic, anti-inflammatory, immunomodulatory, and antioxidant properties. The combination of computational approaches, including artificial intelligence-driven drug discovery and molecular modelling, with natural-product chemistry may significantly enhance the identification, optimization, and development of promising therapeutic candidates. A landmark advancement in this direction has been the successful engineering of an autoluminescent mammalian cell line based on the fungal bioluminescence pathway, overcoming a major limitation of conventional luciferase systems that require continuous external substrate supplementation for imaging applications.

Synthetic biology represents one of the most promising avenues for exploiting fungal bioluminescence. Ke and Tsai highlighted that all currently recognized luminous fungal lineages utilize a conserved luminescence pathway, which has already been functionally transferred into multiple plant species. This remarkable portability creates opportunities for developing self-illuminating crops capable of real-time visualization of physiological responses, living biosensors for environmental monitoring, and advanced reporter platforms for biomedical research and personalized medicine. Continued optimization of pathway components, including improved enzyme variants such as mcitHispS within the FBP3 system, has enhanced luminescence intensity and stability. Likewise, the discovery of compact plant-derived hispidin synthases is facilitating alternative engineering strategies, including viral vector-mediated pathway delivery. Yu and colleagues proposed that the fungal bioluminescence pathway represents a transformative platform for non-invasive plant phenotyping and agricultural biotechnology, reflecting a transition from basic mechanistic research toward practical applications.

The role of bioluminescent fungi in agriculture is also expected to expand considerably. Their bioactive metabolites and ecological functions may support the development of environmentally sustainable biopesticides, biological nematicides, plant-growth-promoting formulations, and innovative disease surveillance technologies that contribute to resilient crop production systems.

Environmental biotechnology represents another rapidly emerging application area. Engineered or naturally luminous fungal systems could serve as living biosensors capable of providing continuous and sensitive detection of soil contaminants, heavy metals, pesticides, and industrial pollutants with minimal operational requirements. Recent investigations by Park and Park, employing Panellus stipticus under lead oxide exposure conditions, demonstrate the potential of fungal luminescence-based systems for sustainable and cost-effective environmental monitoring.

Despite these advances, the majority of fungal bioluminescent diversity remains unexplored, particularly within biodiversity-rich tropical regions such as India, Brazil, Malaysia, Indonesia, and China. Protecting these ecosystems is essential not only for conserving fungal diversity but also for preserving future opportunities in pharmaceutical discovery and biotechnology. Strengthening investments in fungal collections, DNA barcoding initiatives, and integrative taxonomic frameworks will be critical for revealing hidden species diversity and accelerating the responsible utilization of these remarkable biological resources.

15. Conclusion

Bioluminescent fungi represent a remarkable evolutionary achievement, combining ecological uniqueness with exceptional biochemical and technological potential. Once regarded primarily as intriguing phenomena observed on decaying wood and forest floors, these luminous organisms are now increasingly recognized as valuable reservoirs of chemically diverse secondary metabolites exhibiting antioxidant, antibacterial, anticancer, anthelmintic, anti-inflammatory, immunomodulatory, and nematicidal activities. The comprehensive characterization of the fungal caffeic acid–luciferin–luciferase cycle has transformed our comprehension of the molecular foundation of fungal light production and enabled the development of genetically programmable, self-sustaining bioluminescent platforms. These engineered systems have expanded the applications of fungal luminescence beyond basic biological studies, providing innovative tools for molecular analysis, bioimaging, environmental sensing, and synthetic biology. The successful establishment of autonomous luminescence in tobacco and the subsequent enhancement of light emission in metabolically optimized plants capable of visible illumination represent a significant milestone in translating fundamental discoveries into practical technologies.

Recent studies involving species such as Neonothopanus gardneri, Neonothopanus nambi, Omphalotus nidiformis, Omphalotus olivascens, and Roridomyces phyllostachydis have further demonstrated the diverse applications of bioluminescent fungi across biomedical research, sustainable agriculture, environmental monitoring, and bioengineering. These discoveries highlight their potential as multifunctional biological platforms with relevance extending far beyond their ecological roles. Despite substantial progress, the field of fungal bioluminescence remains in an early stage of development. Significant challenges continue to limit broader utilization, including incomplete species exploration, difficulties in controlled cultivation, limited metabolomic characterization, unresolved regulatory mechanisms, constraints in large-scale production, and the need for rigorous clinical validation of bioactive compounds. Addressing these limitations will require integrated efforts involving mycology, natural-product chemistry, molecular genetics, pharmacology, ecology, synthetic biology, and bioengineering.

In conclusion, bioluminescent mushrooms represent an extraordinary yet largely unexplored biological resource with immense scientific, ecological, and commercial potential. Continued investigation of their diversity, ecology, and bioactive chemistry is poised to generate novel solutions to pressing challenges in human health, sustainable agriculture, environmental conservation, and industrial biotechnology.