Ortega-Cuadros, M.; Aligon, S.; Arias, T.; Vasco-Palacios, A.M.; Rosier--Pennevert, C.; Guschinskaya, N.; Rolland, A.; Grappin, P. Fungal Necrotrophic Interaction: A Case Study of Seed Immune Response to a Seed-Borne Pathogen. Seeds2024, 3, 216-227.
Ortega-Cuadros, M.; Aligon, S.; Arias, T.; Vasco-Palacios, A.M.; Rosier--Pennevert, C.; Guschinskaya, N.; Rolland, A.; Grappin, P. Fungal Necrotrophic Interaction: A Case Study of Seed Immune Response to a Seed-Borne Pathogen. Seeds 2024, 3, 216-227.
Ortega-Cuadros, M.; Aligon, S.; Arias, T.; Vasco-Palacios, A.M.; Rosier--Pennevert, C.; Guschinskaya, N.; Rolland, A.; Grappin, P. Fungal Necrotrophic Interaction: A Case Study of Seed Immune Response to a Seed-Borne Pathogen. Seeds2024, 3, 216-227.
Ortega-Cuadros, M.; Aligon, S.; Arias, T.; Vasco-Palacios, A.M.; Rosier--Pennevert, C.; Guschinskaya, N.; Rolland, A.; Grappin, P. Fungal Necrotrophic Interaction: A Case Study of Seed Immune Response to a Seed-Borne Pathogen. Seeds 2024, 3, 216-227.
Abstract
Seeds play a vital role in the perpetuation of plant species, both in natural environments and agriculture. However, they often face challenges from biotic stresses, such as seedborne pathogenic fungi. The transgenerational transmission of these seedborne fungi, along with their dissemination during seed commercialization, can contribute to the emergence of global epidemic diseases, resulting in substantial economic losses. One such pathogenic fungus is Alternaria brassicicola, responsible for causing black spot disease in Brassicaceae. This necrotrophic seedborne fungus negatively impacts plant development, consequently affecting crop production and seed quality. To gain a deeper understanding of the interaction between seeds and necrotrophic fungi, the Arabidopsis thaliana/Alternaria brassicicola model pathosystem has been extensively studied. Recent transcriptomic and genetic studies revealed a distinctive immune response of seeds against this pathogen, divergent from the immune response described in the plant vegetative phase. In germinating seeds and seedlings, the necrotrophic fungus seems to induce susceptible response [1]. It was observed at the RNA level that to the detriment of jasmonic acid pathway, Alternaria induced the salicylic acid and glucosinolate (GSL) pathways. Genetic evidence identified that seedling necrosis, potentially beneficial to the growth of the necrotrophic agent, is hypersensitive response mediated by GSL pathway. Transmission of necrotrophic fungal from seed to seedling unveils novel regulations of the immune response, that would illustrate a trade-off between seedling establishment and fungal infection. This knowledge is promising to sustainably ensure the sanitary quality of crops.
Biology and Life Sciences, Biology and Biotechnology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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