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ORIGINAL RESEARCH article

Front. Microbiol.
Sec. Aquatic Microbiology
Volume 15 - 2024 | doi: 10.3389/fmicb.2024.1508136

Immigration reduces selection in water microbial community assembly

Provisionally accepted
Fen-Guo Zhang Fen-Guo Zhang 1Kefan Wu Kefan Wu 1Sanqing Zhang Sanqing Zhang 1Fu rong Liang Fu rong Liang 1Zhihua Du Zhihua Du 1Yongji Wang Yongji Wang 1*Quan-Guo Zhang Quan-Guo Zhang 2*
  • 1 College of Life Science, Shanxi Engineering Research Center of Microbial application technologies, Shanxi Normal University, Taiyuan, Shanxi, China
  • 2 State Key Laboratory of Earth Surface Processes and Resource Ecology and MOE Key Laboratory for Biodiversity Science and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing, China

The final, formatted version of the article will be published soon.

    To investigate the influence of immigration on the selection in structuring local water bacterial communities, we conducted a new community assembly experiment using microcosms filled with sterile original water medium under outdoor conditions. We collected air particulate matter from dust pooled from samples collected at 10 locations across ~20 km in a warm temperate region in Linfen City (northern China). The immigration rates were increased by introducing air particulate matter into the microcosms. The diversity, structure and composition of bacterial community in the water were assessed using 16S rRNA gene amplicon sequencing on the 13th and 60th days after the start of the experiment. Our results showed that increasing immigration did not lead to significant changes in the overall diversity of the total bacterial community on the 13th day. However, on the 60th day, diversity significantly increased. The variation explained by the environment substantially decreased from the 13th to the 60th day. And the amount decreased from the control to the high immigration treatments, with a range of 65.0% to 29.8% on the 13th day and 34.0% to 15.4% on the 60th day. The dominant phyla differed significantly. In the early stage, Proteobacteria (69.6%) accounted for a higher relative average abundance, while Firmicutes (4.6%), Cyanobacteria (6.0%), Planctomycetota (8.1%), Verrucomicrobiota (2.0%), and Halobacterota (0.9%) were more abundant in the late stage.Additionally, the late stage had an average of 33 phyla, compared to 15 phyla in the early stage. All the results suggested a minimal role of dispersal limitation in structuring water bacterial communities in the early stage, whereas in the late stage, the bacterial communities might experience dispersal 删除的内容: ,

    Keywords: Water bacteria, Microcosm, immigration, environmental selection, Dispersal limitation, Correlation, Complexity

    Received: 08 Oct 2024; Accepted: 02 Dec 2024.

    Copyright: © 2024 Zhang, Wu, Zhang, Liang, Du, Wang and Zhang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Yongji Wang, College of Life Science, Shanxi Engineering Research Center of Microbial application technologies, Shanxi Normal University, Taiyuan, Shanxi, China
    Quan-Guo Zhang, State Key Laboratory of Earth Surface Processes and Resource Ecology and MOE Key Laboratory for Biodiversity Science and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.