Immigration reduces selection in water microbial community assembly
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 fr...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2025-01-01
|
| Series: | Frontiers in Microbiology |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fmicb.2024.1508136/full |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841556274986090496 |
|---|---|
| author | Fen-Guo Zhang Kefan Wu Sanqing Zhang Furong Liang Zhihua Du Yongji Wang Quan-Guo Zhang |
| author_facet | Fen-Guo Zhang Kefan Wu Sanqing Zhang Furong Liang Zhihua Du Yongji Wang Quan-Guo Zhang |
| author_sort | Fen-Guo Zhang |
| collection | DOAJ |
| description | 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 the 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. 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 swamping in our study area. Variance partitioning indicated that throughout the experiment, increasing immigration weakened the signal of environmental selection in the water microbial community assembly. These results expand our understanding of the impact of immigration on environmental selection and provide insights into the varying importance of dispersal and selection on microbial community assembly at different stages of succession. |
| format | Article |
| id | doaj-art-5810f0d86a64404c81d6bb9ce7ebb5c9 |
| institution | Kabale University |
| issn | 1664-302X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Microbiology |
| spelling | doaj-art-5810f0d86a64404c81d6bb9ce7ebb5c92025-01-07T10:49:26ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2025-01-011510.3389/fmicb.2024.15081361508136Immigration reduces selection in water microbial community assemblyFen-Guo Zhang0Kefan Wu1Sanqing Zhang2Furong Liang3Zhihua Du4Yongji Wang5Quan-Guo Zhang6College of Life Science, Shanxi Engineering Research Center of Microbial Application Technologies, Shanxi Normal University, Taiyuan, ChinaCollege of Life Science, Shanxi Engineering Research Center of Microbial Application Technologies, Shanxi Normal University, Taiyuan, ChinaCollege of Life Science, Shanxi Engineering Research Center of Microbial Application Technologies, Shanxi Normal University, Taiyuan, ChinaCollege of Life Science, Shanxi Engineering Research Center of Microbial Application Technologies, Shanxi Normal University, Taiyuan, ChinaCollege of Life Science, Shanxi Engineering Research Center of Microbial Application Technologies, Shanxi Normal University, Taiyuan, ChinaCollege of Life Science, Shanxi Engineering Research Center of Microbial Application Technologies, Shanxi Normal University, Taiyuan, ChinaState Key Laboratory of Earth Surface Processes and Resource Ecology, MOE Key Laboratory for Biodiversity Science and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing, ChinaTo 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 the 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. 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 swamping in our study area. Variance partitioning indicated that throughout the experiment, increasing immigration weakened the signal of environmental selection in the water microbial community assembly. These results expand our understanding of the impact of immigration on environmental selection and provide insights into the varying importance of dispersal and selection on microbial community assembly at different stages of succession.https://www.frontiersin.org/articles/10.3389/fmicb.2024.1508136/fullwater bacteriamicrocosmimmigrationenvironmental selectiondispersal limitationdispersal swamping |
| spellingShingle | Fen-Guo Zhang Kefan Wu Sanqing Zhang Furong Liang Zhihua Du Yongji Wang Quan-Guo Zhang Immigration reduces selection in water microbial community assembly Frontiers in Microbiology water bacteria microcosm immigration environmental selection dispersal limitation dispersal swamping |
| title | Immigration reduces selection in water microbial community assembly |
| title_full | Immigration reduces selection in water microbial community assembly |
| title_fullStr | Immigration reduces selection in water microbial community assembly |
| title_full_unstemmed | Immigration reduces selection in water microbial community assembly |
| title_short | Immigration reduces selection in water microbial community assembly |
| title_sort | immigration reduces selection in water microbial community assembly |
| topic | water bacteria microcosm immigration environmental selection dispersal limitation dispersal swamping |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2024.1508136/full |
| work_keys_str_mv | AT fenguozhang immigrationreducesselectioninwatermicrobialcommunityassembly AT kefanwu immigrationreducesselectioninwatermicrobialcommunityassembly AT sanqingzhang immigrationreducesselectioninwatermicrobialcommunityassembly AT furongliang immigrationreducesselectioninwatermicrobialcommunityassembly AT zhihuadu immigrationreducesselectioninwatermicrobialcommunityassembly AT yongjiwang immigrationreducesselectioninwatermicrobialcommunityassembly AT quanguozhang immigrationreducesselectioninwatermicrobialcommunityassembly |