The assembly, biogeography and co-occurrence of abundant and rare microbial communities in a karst river
Karst rivers are highly susceptible to environmental disturbance due to their robust hydraulic connectivity. However, current knowledge of the mechanisms that regulate the assembly of bacterial and protistan subcommunities in river ecosystems, particularly in karst regions, is limited. By employing...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-08-01
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| Series: | Frontiers in Marine Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2023.1228813/full |
| _version_ | 1797767148208128000 |
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| author | Yongjie Wu Yang Zhang Huaiyang Fang Cheng Wang Zengrui Wang Wucai Zhang Bixian Mai Bixian Mai Zhili He Renren Wu Kaiming Li |
| author_facet | Yongjie Wu Yang Zhang Huaiyang Fang Cheng Wang Zengrui Wang Wucai Zhang Bixian Mai Bixian Mai Zhili He Renren Wu Kaiming Li |
| author_sort | Yongjie Wu |
| collection | DOAJ |
| description | Karst rivers are highly susceptible to environmental disturbance due to their robust hydraulic connectivity. However, current knowledge of the mechanisms that regulate the assembly of bacterial and protistan subcommunities in river ecosystems, particularly in karst regions, is limited. By employing 16S and 18S rRNA gene amplicon sequencing, we explored how the diversities and assembly of abundant and rare bacterial and protistan subcommunities adapt to the local environmental variables in a karst river. Both bacterial and protistan rare subcommunities in karst river environments showed a similar biogeography to their abundant subcommunities. Also, a significant distance-decay pattern was observed in all components of the bacterial and protistan subcommunities along the Chishui River, with the rare subcommunities showing a more pronounced distance-decay pattern compared to the abundant subcommunities. Except protist rare subcommunity, the abundant and rare bacterial and abundant protistan subcommunities were strongly structured by the dispersal limitation processes rather than heterogeneous selection. Either bacteria or temperature, elevation and conductivity were the primary drivers for both abundant and rare subcommunities. Additionally, our results suggested that the rare subcommunities contribute significantly to the persistence and stability of microbial networks in the Chishui River, as they exhibited a higher number of keystones compared to the abundant subcommunities. Overall, our study revealed that in the karst river ecosystem, abundant bacterial subcommunities had a higher potential for environmental adaptation than rare bacterial and protistan subcommunities and identified the factors that moderate their assembly processes. |
| first_indexed | 2024-03-12T20:34:39Z |
| format | Article |
| id | doaj.art-d3971fdd67404eddbdedc5ab1ec0aa61 |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-03-12T20:34:39Z |
| publishDate | 2023-08-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-d3971fdd67404eddbdedc5ab1ec0aa612023-08-01T14:42:51ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452023-08-011010.3389/fmars.2023.12288131228813The assembly, biogeography and co-occurrence of abundant and rare microbial communities in a karst riverYongjie Wu0Yang Zhang1Huaiyang Fang2Cheng Wang3Zengrui Wang4Wucai Zhang5Bixian Mai6Bixian Mai7Zhili He8Renren Wu9Kaiming Li10State Environmental Protection Key Laboratory of Water Environmental Simulation and Pollution Control, South China Institute of Environmental Sciences, Ministry of Ecology and Environment of the People’s Republic of China, Guangzhou, ChinaState Environmental Protection Key Laboratory of Water Environmental Simulation and Pollution Control, South China Institute of Environmental Sciences, Ministry of Ecology and Environment of the People’s Republic of China, Guangzhou, ChinaState Environmental Protection Key Laboratory of Water Environmental Simulation and Pollution Control, South China Institute of Environmental Sciences, Ministry of Ecology and Environment of the People’s Republic of China, Guangzhou, ChinaEnvironmental Microbiomics Research Center, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, ChinaSchool of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei, ChinaState Environmental Protection Key Laboratory of Water Environmental Simulation and Pollution Control, South China Institute of Environmental Sciences, Ministry of Ecology and Environment of the People’s Republic of China, Guangzhou, ChinaState Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Resources Utilization and Protection, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, ChinaGuangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, ChinaSouthern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, ChinaState Environmental Protection Key Laboratory of Water Environmental Simulation and Pollution Control, South China Institute of Environmental Sciences, Ministry of Ecology and Environment of the People’s Republic of China, Guangzhou, ChinaState Environmental Protection Key Laboratory of Water Environmental Simulation and Pollution Control, South China Institute of Environmental Sciences, Ministry of Ecology and Environment of the People’s Republic of China, Guangzhou, ChinaKarst rivers are highly susceptible to environmental disturbance due to their robust hydraulic connectivity. However, current knowledge of the mechanisms that regulate the assembly of bacterial and protistan subcommunities in river ecosystems, particularly in karst regions, is limited. By employing 16S and 18S rRNA gene amplicon sequencing, we explored how the diversities and assembly of abundant and rare bacterial and protistan subcommunities adapt to the local environmental variables in a karst river. Both bacterial and protistan rare subcommunities in karst river environments showed a similar biogeography to their abundant subcommunities. Also, a significant distance-decay pattern was observed in all components of the bacterial and protistan subcommunities along the Chishui River, with the rare subcommunities showing a more pronounced distance-decay pattern compared to the abundant subcommunities. Except protist rare subcommunity, the abundant and rare bacterial and abundant protistan subcommunities were strongly structured by the dispersal limitation processes rather than heterogeneous selection. Either bacteria or temperature, elevation and conductivity were the primary drivers for both abundant and rare subcommunities. Additionally, our results suggested that the rare subcommunities contribute significantly to the persistence and stability of microbial networks in the Chishui River, as they exhibited a higher number of keystones compared to the abundant subcommunities. Overall, our study revealed that in the karst river ecosystem, abundant bacterial subcommunities had a higher potential for environmental adaptation than rare bacterial and protistan subcommunities and identified the factors that moderate their assembly processes.https://www.frontiersin.org/articles/10.3389/fmars.2023.1228813/fullkarst riverbiogeographycommunity assemblyrare bacteriarare protiststochastic processes |
| spellingShingle | Yongjie Wu Yang Zhang Huaiyang Fang Cheng Wang Zengrui Wang Wucai Zhang Bixian Mai Bixian Mai Zhili He Renren Wu Kaiming Li The assembly, biogeography and co-occurrence of abundant and rare microbial communities in a karst river Frontiers in Marine Science karst river biogeography community assembly rare bacteria rare protist stochastic processes |
| title | The assembly, biogeography and co-occurrence of abundant and rare microbial communities in a karst river |
| title_full | The assembly, biogeography and co-occurrence of abundant and rare microbial communities in a karst river |
| title_fullStr | The assembly, biogeography and co-occurrence of abundant and rare microbial communities in a karst river |
| title_full_unstemmed | The assembly, biogeography and co-occurrence of abundant and rare microbial communities in a karst river |
| title_short | The assembly, biogeography and co-occurrence of abundant and rare microbial communities in a karst river |
| title_sort | assembly biogeography and co occurrence of abundant and rare microbial communities in a karst river |
| topic | karst river biogeography community assembly rare bacteria rare protist stochastic processes |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2023.1228813/full |
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