Differences in pathogenic community assembly processes and their interactions with bacterial communities in river and lake ecosystems
Pathogenic bacterial infections caused by water quality degradation are one of the most widespread environmental problems. Clarifying the structure of pathogens and their assembly mechanisms in lake ecosystems is vital to prevent the infestation of waterborne pathogens and maintain human health. How...
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| Veröffentlicht in: | Environmental research 2023-11, Vol.236 (Pt 2), p.116847-116847, Article 116847 |
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| creator | Zhang, Lei Fang, Shuqi Hong, Wenqing Shen, Zhen Li, Shuo Fang, Wangkai |
| description | Pathogenic bacterial infections caused by water quality degradation are one of the most widespread environmental problems. Clarifying the structure of pathogens and their assembly mechanisms in lake ecosystems is vital to prevent the infestation of waterborne pathogens and maintain human health. However, the composition and assembly mechanisms of pathogenic bacterial communities in river and lake ecosystems are still poorly understood. In this study, we collected 17 water and 17 sediment samples from Lake Chaohu and its 11 inflow rivers. Sequencing of 16S rRNA genes was used to study bacterial pathogen communities. The results of the study showed that there was a significant difference (P |
| doi_str_mv | 10.1016/j.envres.2023.116847 |
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•Pathogen composition in rivers and lake differed significantly.•A negative correlation existed between bacterial community diversity and pathogens.•Pathogen as keystone species will reduce the bacterial community complexity.•Stochastic processes dominate pathogen community assembly in riverine habitats.•Deterministic processes control pathogenic community assembly in lake habitats.</description><identifier>ISSN: 0013-9351</identifier><identifier>EISSN: 1096-0953</identifier><identifier>DOI: 10.1016/j.envres.2023.116847</identifier><identifier>PMID: 37558117</identifier><language>eng</language><publisher>Netherlands: Elsevier Inc</publisher><subject>Acinetobacter ; Assembly mechanism ; bacteria ; bacterial communities ; Co-occurrence network ; Flavobacterium ; freshwater ; habitats ; human health ; keystone species ; lakes ; Pathogenic bacterial community ; pathogens ; Pseudomonas aeruginosa ; riparian areas ; rivers ; Salmonella enterica ; sediments ; species ; water quality</subject><ispartof>Environmental research, 2023-11, Vol.236 (Pt 2), p.116847-116847, Article 116847</ispartof><rights>2023 Elsevier Inc.</rights><rights>Copyright © 2023 Elsevier Inc. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c395t-3099d74b86427db3e14f047d4743ab73bae89bfbe4ddda9cec6266723bd1aa3d3</citedby><cites>FETCH-LOGICAL-c395t-3099d74b86427db3e14f047d4743ab73bae89bfbe4ddda9cec6266723bd1aa3d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0013935123016511$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27903,27904,65309</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/37558117$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhang, Lei</creatorcontrib><creatorcontrib>Fang, Shuqi</creatorcontrib><creatorcontrib>Hong, Wenqing</creatorcontrib><creatorcontrib>Shen, Zhen</creatorcontrib><creatorcontrib>Li, Shuo</creatorcontrib><creatorcontrib>Fang, Wangkai</creatorcontrib><title>Differences in pathogenic community assembly processes and their interactions with bacterial communities in river and lake ecosystems</title><title>Environmental research</title><addtitle>Environ Res</addtitle><description>Pathogenic bacterial infections caused by water quality degradation are one of the most widespread environmental problems. Clarifying the structure of pathogens and their assembly mechanisms in lake ecosystems is vital to prevent the infestation of waterborne pathogens and maintain human health. However, the composition and assembly mechanisms of pathogenic bacterial communities in river and lake ecosystems are still poorly understood. In this study, we collected 17 water and 17 sediment samples from Lake Chaohu and its 11 inflow rivers. Sequencing of 16S rRNA genes was used to study bacterial pathogen communities. The results of the study showed that there was a significant difference (P < 0.05) in the composition of the pathogen community between riverine and lake habitats. Acinetobacter (36.49%) was the dominant bacterium in the river, whereas Flavobacterium (21.6%) was the most abundant bacterium in the lake. Deterministic processes (i.e., environmental filtering and species interaction) drove the assembly of pathogenic bacterial communities in the lake habitat, while stochastic processes shaped river pathogenic bacterial communities. Spearman correlation analysis showed that the α-diversity of bacterial communities was linearly and negatively linked to the relative abundance of pathogens. Having a higher bacterial community diversity had a suppressive effect on pathogen abundance. In addition, co-occurrence network analysis showed that bacterial communities were tightly linked to pathogenic bacteria. Pseudomonas aeruginosa and Salmonella enterica were identified as keystone species in an inflow water sampling network (W_FR), reducing the complexity of the network. These results provide a reference for assessments of water quality safety and pathogenic bacteria posing risks to human health in large freshwater lakes.
[Display omitted]
•Pathogen composition in rivers and lake differed significantly.•A negative correlation existed between bacterial community diversity and pathogens.•Pathogen as keystone species will reduce the bacterial community complexity.•Stochastic processes dominate pathogen community assembly in riverine habitats.•Deterministic processes control pathogenic community assembly in lake habitats.</description><subject>Acinetobacter</subject><subject>Assembly mechanism</subject><subject>bacteria</subject><subject>bacterial communities</subject><subject>Co-occurrence network</subject><subject>Flavobacterium</subject><subject>freshwater</subject><subject>habitats</subject><subject>human health</subject><subject>keystone species</subject><subject>lakes</subject><subject>Pathogenic bacterial community</subject><subject>pathogens</subject><subject>Pseudomonas aeruginosa</subject><subject>riparian areas</subject><subject>rivers</subject><subject>Salmonella enterica</subject><subject>sediments</subject><subject>species</subject><subject>water quality</subject><issn>0013-9351</issn><issn>1096-0953</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNqNkcuKFDEUhoMoTjv6BiJZuqk2qaSSykaQ8QoDbnQdcjllp61Lm5Nu6QfwvU1b4yzFVTjw_f8h5yPkOWdbzrh6td_CfMqA25a1Ysu56qV-QDacGdUw04mHZMMYF40RHb8iTxD3deSdYI_JldBd13OuN-TX2zQMkGEOgDTN9ODKbvkGcwo0LNN0nFM5U4cIkx_P9JCXymFF3Rxp2UHKNVQgu1DSMiP9mcqO-jpBTm68r0hreU4nyH-io_sOFMKCZyww4VPyaHAjwrO795p8ff_uy83H5vbzh083b26bIExXGsGMiVr6XslWRy-Ay4FJHaWWwnktvIPe-MGDjDE6EyCoVindCh-5cyKKa_Jy7a0f-XEELHZKGGAc3QzLEW3b91oxw5j8D1T2veyE0hWVKxrygphhsIecJpfPljN7cWX3dnVlL67s6qrGXtxtOPoJ4n3or5wKvF4BqCc5JcgWQ7qYiilDKDYu6d8bfgOW8asB</recordid><startdate>20231101</startdate><enddate>20231101</enddate><creator>Zhang, Lei</creator><creator>Fang, Shuqi</creator><creator>Hong, Wenqing</creator><creator>Shen, Zhen</creator><creator>Li, Shuo</creator><creator>Fang, Wangkai</creator><general>Elsevier Inc</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7S9</scope><scope>L.6</scope></search><sort><creationdate>20231101</creationdate><title>Differences in pathogenic community assembly processes and their interactions with bacterial communities in river and lake ecosystems</title><author>Zhang, Lei ; Fang, Shuqi ; Hong, Wenqing ; Shen, Zhen ; Li, Shuo ; Fang, Wangkai</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c395t-3099d74b86427db3e14f047d4743ab73bae89bfbe4ddda9cec6266723bd1aa3d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Acinetobacter</topic><topic>Assembly mechanism</topic><topic>bacteria</topic><topic>bacterial communities</topic><topic>Co-occurrence network</topic><topic>Flavobacterium</topic><topic>freshwater</topic><topic>habitats</topic><topic>human health</topic><topic>keystone species</topic><topic>lakes</topic><topic>Pathogenic bacterial community</topic><topic>pathogens</topic><topic>Pseudomonas aeruginosa</topic><topic>riparian areas</topic><topic>rivers</topic><topic>Salmonella enterica</topic><topic>sediments</topic><topic>species</topic><topic>water quality</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Lei</creatorcontrib><creatorcontrib>Fang, Shuqi</creatorcontrib><creatorcontrib>Hong, Wenqing</creatorcontrib><creatorcontrib>Shen, Zhen</creatorcontrib><creatorcontrib>Li, Shuo</creatorcontrib><creatorcontrib>Fang, Wangkai</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>AGRICOLA</collection><collection>AGRICOLA - Academic</collection><jtitle>Environmental research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Lei</au><au>Fang, Shuqi</au><au>Hong, Wenqing</au><au>Shen, Zhen</au><au>Li, Shuo</au><au>Fang, Wangkai</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Differences in pathogenic community assembly processes and their interactions with bacterial communities in river and lake ecosystems</atitle><jtitle>Environmental research</jtitle><addtitle>Environ Res</addtitle><date>2023-11-01</date><risdate>2023</risdate><volume>236</volume><issue>Pt 2</issue><spage>116847</spage><epage>116847</epage><pages>116847-116847</pages><artnum>116847</artnum><issn>0013-9351</issn><eissn>1096-0953</eissn><abstract>Pathogenic bacterial infections caused by water quality degradation are one of the most widespread environmental problems. Clarifying the structure of pathogens and their assembly mechanisms in lake ecosystems is vital to prevent the infestation of waterborne pathogens and maintain human health. However, the composition and assembly mechanisms of pathogenic bacterial communities in river and lake ecosystems are still poorly understood. In this study, we collected 17 water and 17 sediment samples from Lake Chaohu and its 11 inflow rivers. Sequencing of 16S rRNA genes was used to study bacterial pathogen communities. The results of the study showed that there was a significant difference (P < 0.05) in the composition of the pathogen community between riverine and lake habitats. Acinetobacter (36.49%) was the dominant bacterium in the river, whereas Flavobacterium (21.6%) was the most abundant bacterium in the lake. Deterministic processes (i.e., environmental filtering and species interaction) drove the assembly of pathogenic bacterial communities in the lake habitat, while stochastic processes shaped river pathogenic bacterial communities. Spearman correlation analysis showed that the α-diversity of bacterial communities was linearly and negatively linked to the relative abundance of pathogens. Having a higher bacterial community diversity had a suppressive effect on pathogen abundance. In addition, co-occurrence network analysis showed that bacterial communities were tightly linked to pathogenic bacteria. Pseudomonas aeruginosa and Salmonella enterica were identified as keystone species in an inflow water sampling network (W_FR), reducing the complexity of the network. These results provide a reference for assessments of water quality safety and pathogenic bacteria posing risks to human health in large freshwater lakes.
[Display omitted]
•Pathogen composition in rivers and lake differed significantly.•A negative correlation existed between bacterial community diversity and pathogens.•Pathogen as keystone species will reduce the bacterial community complexity.•Stochastic processes dominate pathogen community assembly in riverine habitats.•Deterministic processes control pathogenic community assembly in lake habitats.</abstract><cop>Netherlands</cop><pub>Elsevier Inc</pub><pmid>37558117</pmid><doi>10.1016/j.envres.2023.116847</doi><tpages>1</tpages></addata></record> |
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| subjects | Acinetobacter Assembly mechanism bacteria bacterial communities Co-occurrence network Flavobacterium freshwater habitats human health keystone species lakes Pathogenic bacterial community pathogens Pseudomonas aeruginosa riparian areas rivers Salmonella enterica sediments species water quality |
| title | Differences in pathogenic community assembly processes and their interactions with bacterial communities in river and lake ecosystems |
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