Nakashima, Y.; Sonobe, T.; Hanada, M.; Kitano, G.; Sonoyama, Y.; Iwai, K.; Kimura, T.; Kusube, M. Microbial Detoxification of Sediments Underpins Persistence of Zostera marina Meadows. Preprints2024, 2024040920. https://doi.org/10.20944/preprints202404.0920.v1
APA Style
Nakashima, Y., Sonobe, T., Hanada, M., Kitano, G., Sonoyama, Y., Iwai, K., Kimura, T., & Kusube, M. (2024). Microbial Detoxification of Sediments Underpins Persistence of <em>Zostera marina</em> Meadows. Preprints. https://doi.org/10.20944/preprints202404.0920.v1
Chicago/Turabian Style
Nakashima, Y., Takashi Kimura and Masataka Kusube. 2024 "Microbial Detoxification of Sediments Underpins Persistence of <em>Zostera marina</em> Meadows" Preprints. https://doi.org/10.20944/preprints202404.0920.v1
Abstract
Eelgrass meadows have attracted a lot of attention not only for their ability to maintain marine ecosystems as feeding grounds for marine organisms, but also for their potential to store atmos-pheric and dissolved CO2 as blue carbon. This study comprehensively evaluated the bacterial and chemical composition data obtained from eelgrass sediments of different scales along the coast of Japan to investigate the sediment effect on the acclimatization of eelgrass. Regardless eelgrass habitat, approximately 1% Anaerolineales, Babeliales, Cytophagales, and Phycisphaerales were present in the bottom sediment. Sulfate-reducing bacteria (SRB) were present at 3.69 % in eelgrass sediment compared to 1.70 % in bare sediment. Sulfur-oxidizing bacteria (SOB) were present at 2.81% and 1.10% in the eelgrass and bare sediment, respectively. Bacterial composition analysis and linear discriminant analysis revealed that sulfur-oxidizing bacteria detoxified H2S in the eelgrass meadows and that the larger-scale eelgrass meadows had a higher diversity of sul-fur-oxidizing bacteria. Our result indicated that one of the following systems detoxifies the H2S in eelgrass meadows microbial oxidation by sulfur-oxidizing bacteria, oxidation by O2 perme-ated by the physical diffusion of benthos. This study indicated the issues of maintaining sustain-able conservation of the eelgrass bed.
Copyright:
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