Eutrophication influences diversity and community-level change points of mycoplankton in subtropical estuaries
Mycoplankton are essential for biogeochemical cycles in natural water bodies. However, the distribution of the mycoplanktonic community and its community-level change points in subtropical estuaries remain unclear. In this study, we employed 18S rRNA high-throughput sequencing to explore the mycopla...
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Frontiers Media S.A.
2025-06-01
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| Series: | Frontiers in Microbiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmicb.2025.1620942/full |
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| author | Jiehao Zhong Qingxiang Chen Xiaojie Deng Yongpeng Guan Qing He Rajapakshalage Thashikala Nethmini Jing Tang Qinghua Hou Xiaolei Li Gonglingxia Jiang Laizhen Huang Ke Dong Nan Li |
| author_facet | Jiehao Zhong Qingxiang Chen Xiaojie Deng Yongpeng Guan Qing He Rajapakshalage Thashikala Nethmini Jing Tang Qinghua Hou Xiaolei Li Gonglingxia Jiang Laizhen Huang Ke Dong Nan Li |
| author_sort | Jiehao Zhong |
| collection | DOAJ |
| description | Mycoplankton are essential for biogeochemical cycles in natural water bodies. However, the distribution of the mycoplanktonic community and its community-level change points in subtropical estuaries remain unclear. In this study, we employed 18S rRNA high-throughput sequencing to explore the mycoplanktonic community structure and environmental thresholds in the Dafengjiang River Estuary. Agaricostilbomycetes and Saccharomycetes are the dominant classes in the Dafengjiang River Estuary. The alpha and beta diversities of the mycoplanktonic communities showed significant differences (p < 0.05) across the seasons. Distance-based redundancy analysis (db-RDA) suggested that the main driver of the total community was eutrophication level, and the key factors for oligotrophication, medium eutrophication, and high eutrophication were dissolved inorganic phosphorus (DIP), ammonium (NH4+), and chlorophyll-a (Chl-a), respectively. Threshold Indicator Taxa Analysis (TITAN) exhibited the community-level change points of mycoplankton along the eutrophication gradients were DIP (6–15.5 μg/L), NH4+ (61.5–62.5 μg/L) and Chl-a (2.55–9.3 μg/L), respectively. Random forest analysis revealed that Rhizophydium, Aspergillus and Vanrija were sensitive to eutrophication status and could serve as bioindicator genera for environmental changes. Overall, our study enhances our understanding of the diversity and community-level change points of mycoplankton in subtropical estuaries and lays the theoretical foundation for the environmental monitoring of subtropical estuaries. |
| format | Article |
| id | doaj-art-9bb74da0271d4b52a11440cf1e8cd5fe |
| institution | Kabale University |
| issn | 1664-302X |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Microbiology |
| spelling | doaj-art-9bb74da0271d4b52a11440cf1e8cd5fe2025-08-20T03:30:19ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2025-06-011610.3389/fmicb.2025.16209421620942Eutrophication influences diversity and community-level change points of mycoplankton in subtropical estuariesJiehao Zhong0Qingxiang Chen1Xiaojie Deng2Yongpeng Guan3Qing He4Rajapakshalage Thashikala Nethmini5Jing Tang6Qinghua Hou7Xiaolei Li8Gonglingxia Jiang9Laizhen Huang10Ke Dong11Nan Li12Key Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, Department of Oceanography, Key Laboratory for Coastal Ocean Variation and Disaster Prediction, College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang, ChinaKey Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, Department of Oceanography, Key Laboratory for Coastal Ocean Variation and Disaster Prediction, College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang, ChinaKey Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, Department of Oceanography, Key Laboratory for Coastal Ocean Variation and Disaster Prediction, College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang, ChinaKey Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, Department of Oceanography, Key Laboratory for Coastal Ocean Variation and Disaster Prediction, College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang, ChinaKey Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, Department of Oceanography, Key Laboratory for Coastal Ocean Variation and Disaster Prediction, College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang, ChinaKey Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, Department of Oceanography, Key Laboratory for Coastal Ocean Variation and Disaster Prediction, College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang, ChinaKey Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, Department of Oceanography, Key Laboratory for Coastal Ocean Variation and Disaster Prediction, College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang, ChinaKey Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, Department of Oceanography, Key Laboratory for Coastal Ocean Variation and Disaster Prediction, College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang, ChinaKey Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, Department of Oceanography, Key Laboratory for Coastal Ocean Variation and Disaster Prediction, College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang, ChinaKey Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, Department of Oceanography, Key Laboratory for Coastal Ocean Variation and Disaster Prediction, College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang, ChinaKey Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, Department of Oceanography, Key Laboratory for Coastal Ocean Variation and Disaster Prediction, College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang, ChinaDepartment of Biological Sciences, Kyonggi University, Suwon-si, Republic of KoreaKey Laboratory of Climate, Resources and Environment in Continental Shelf Sea and Deep Sea of Department of Education of Guangdong Province, Department of Oceanography, Key Laboratory for Coastal Ocean Variation and Disaster Prediction, College of Ocean and Meteorology, Guangdong Ocean University, Zhanjiang, ChinaMycoplankton are essential for biogeochemical cycles in natural water bodies. However, the distribution of the mycoplanktonic community and its community-level change points in subtropical estuaries remain unclear. In this study, we employed 18S rRNA high-throughput sequencing to explore the mycoplanktonic community structure and environmental thresholds in the Dafengjiang River Estuary. Agaricostilbomycetes and Saccharomycetes are the dominant classes in the Dafengjiang River Estuary. The alpha and beta diversities of the mycoplanktonic communities showed significant differences (p < 0.05) across the seasons. Distance-based redundancy analysis (db-RDA) suggested that the main driver of the total community was eutrophication level, and the key factors for oligotrophication, medium eutrophication, and high eutrophication were dissolved inorganic phosphorus (DIP), ammonium (NH4+), and chlorophyll-a (Chl-a), respectively. Threshold Indicator Taxa Analysis (TITAN) exhibited the community-level change points of mycoplankton along the eutrophication gradients were DIP (6–15.5 μg/L), NH4+ (61.5–62.5 μg/L) and Chl-a (2.55–9.3 μg/L), respectively. Random forest analysis revealed that Rhizophydium, Aspergillus and Vanrija were sensitive to eutrophication status and could serve as bioindicator genera for environmental changes. Overall, our study enhances our understanding of the diversity and community-level change points of mycoplankton in subtropical estuaries and lays the theoretical foundation for the environmental monitoring of subtropical estuaries.https://www.frontiersin.org/articles/10.3389/fmicb.2025.1620942/fullmycoplanktoncommunity-level change pointsTITANsubtropical estuary18S rRNA gene |
| spellingShingle | Jiehao Zhong Qingxiang Chen Xiaojie Deng Yongpeng Guan Qing He Rajapakshalage Thashikala Nethmini Jing Tang Qinghua Hou Xiaolei Li Gonglingxia Jiang Laizhen Huang Ke Dong Nan Li Eutrophication influences diversity and community-level change points of mycoplankton in subtropical estuaries Frontiers in Microbiology mycoplankton community-level change points TITAN subtropical estuary 18S rRNA gene |
| title | Eutrophication influences diversity and community-level change points of mycoplankton in subtropical estuaries |
| title_full | Eutrophication influences diversity and community-level change points of mycoplankton in subtropical estuaries |
| title_fullStr | Eutrophication influences diversity and community-level change points of mycoplankton in subtropical estuaries |
| title_full_unstemmed | Eutrophication influences diversity and community-level change points of mycoplankton in subtropical estuaries |
| title_short | Eutrophication influences diversity and community-level change points of mycoplankton in subtropical estuaries |
| title_sort | eutrophication influences diversity and community level change points of mycoplankton in subtropical estuaries |
| topic | mycoplankton community-level change points TITAN subtropical estuary 18S rRNA gene |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2025.1620942/full |
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