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| Main Authors: | , , , , , , , , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
FEMS microbiology ecology
2025
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| Subjects: | |
| Online Access: | https://pubmed.ncbi.nlm.nih.gov/39510965/ |
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| _version_ | 1868266282468507649 |
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| author | Xiao, Jingyi Hao, Sijia Xiao, Li-Juan Yang, Yang Wu, Qinglong L He, Dan Zhou, Lijun Hu, Ren Ren, Lijuan |
| author_facet | Xiao, Jingyi Hao, Sijia Xiao, Li-Juan Yang, Yang Wu, Qinglong L He, Dan Zhou, Lijun Hu, Ren Ren, Lijuan Xiao, Jingyi Hao, Sijia Xiao, Li-Juan Yang, Yang Wu, Qinglong L He, Dan Zhou, Lijun Hu, Ren Ren, Lijuan |
| collection | PubMed - marine biology |
| contents | Particle-attached bacterial communities are more susceptible to seasonal environmental fluctuations in mesotrophic than eutrophic tropical reservoirs. Xiao, Jingyi Hao, Sijia Xiao, Li-Juan Yang, Yang Wu, Qinglong L He, Dan Zhou, Lijun Hu, Ren Ren, Lijuan Seasons Eutrophication China Bacteria Tropical Climate Biodiversity Ecosystem Water Microbiology Particle-attached bacterial (PAB) communities play pivotal roles in water organic matter decomposition, nutrient cycling, and the natural self-purification processes. However, we know little about their responses to seasonal environmental fluctuations, under eutrophication in reservoir ecosystems. In this study, we studied the shifts of PAB communities to seasonal environmental fluctuations in tropical China. Trophic state index (TSI) indicated that the studied reservoirs ranged from mesotrophic to eutrophic state with a gradual increase in TSI from 31 to 58. In eutrophic reservoirs, Cyanobacteria, especially Raphidiopsis raciborskii, significantly increased in its relative abundance from the wet to dry season, but Synechococcales and Microcystaceae decreased. In contrast, the relative abundance of Clostridia, Bacilli, Coriobacteriia, Enterobacteriales, and Vibrionales were more susceptible to seasonal environmental fluctuations in mesotrophic than eutrophic reservoirs. PAB co-occurrence relationships in mesotrophic reservoirs varied more greatly in response to seasonal environmental fluctuations, compared with eutrophic reservoirs, in terms of topological properties of connectedness, average degree, robustness, and vulnerability. Our results further demonstrated that the seasonal stability of PAB co-occurrence relationships was strongly correlative with TSI through mediating key bacterial taxa and community biodiversity. We proposed that eutrophication dramatically reduced the seasonal variation of PAB community compositions and co-occurring relationships in reservoir ecosystems. |
| format | Artículo científico |
| id | pubmed_39510965 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | FEMS microbiology ecology |
| record_format | pubmed |
| spellingShingle | Particle-attached bacterial communities are more susceptible to seasonal environmental fluctuations in mesotrophic than eutrophic tropical reservoirs. Xiao, Jingyi Hao, Sijia Xiao, Li-Juan Yang, Yang Wu, Qinglong L He, Dan Zhou, Lijun Hu, Ren Ren, Lijuan Seasons Eutrophication China Bacteria Tropical Climate Biodiversity Ecosystem Water Microbiology Particle-attached bacterial communities are more susceptible to seasonal environmental fluctuations in mesotrophic than eutrophic tropical reservoirs. Xiao, Jingyi Hao, Sijia Xiao, Li-Juan Yang, Yang Wu, Qinglong L He, Dan Zhou, Lijun Hu, Ren Ren, Lijuan Seasons Eutrophication China Bacteria Tropical Climate Biodiversity Ecosystem Water Microbiology Particle-attached bacterial (PAB) communities play pivotal roles in water organic matter decomposition, nutrient cycling, and the natural self-purification processes. However, we know little about their responses to seasonal environmental fluctuations, under eutrophication in reservoir ecosystems. In this study, we studied the shifts of PAB communities to seasonal environmental fluctuations in tropical China. Trophic state index (TSI) indicated that the studied reservoirs ranged from mesotrophic to eutrophic state with a gradual increase in TSI from 31 to 58. In eutrophic reservoirs, Cyanobacteria, especially Raphidiopsis raciborskii, significantly increased in its relative abundance from the wet to dry season, but Synechococcales and Microcystaceae decreased. In contrast, the relative abundance of Clostridia, Bacilli, Coriobacteriia, Enterobacteriales, and Vibrionales were more susceptible to seasonal environmental fluctuations in mesotrophic than eutrophic reservoirs. PAB co-occurrence relationships in mesotrophic reservoirs varied more greatly in response to seasonal environmental fluctuations, compared with eutrophic reservoirs, in terms of topological properties of connectedness, average degree, robustness, and vulnerability. Our results further demonstrated that the seasonal stability of PAB co-occurrence relationships was strongly correlative with TSI through mediating key bacterial taxa and community biodiversity. We proposed that eutrophication dramatically reduced the seasonal variation of PAB community compositions and co-occurring relationships in reservoir ecosystems. |
| title | Particle-attached bacterial communities are more susceptible to seasonal environmental fluctuations in mesotrophic than eutrophic tropical reservoirs. |
| topic | Seasons Eutrophication China Bacteria Tropical Climate Biodiversity Ecosystem Water Microbiology |
| url | https://pubmed.ncbi.nlm.nih.gov/39510965/ |