Diazotrophic Community Variation Underlies Differences in Nitrogen Fixation Potential in Paddy Soils Across a Climatic Gradient in China
Biological nitrogen (N₂) fixation as a source of new N input into the soil by free-living diazotrophs is important for achieving sustainable rice agriculture. However, the dominant environmental drivers or factors influencing N₂ fixation and the functional significance of the diazotroph community st...
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| Veröffentlicht in: | Microbial ecology 2021-02, Vol.81 (2), p.425-436 |
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| creator | Wu, Chuanfa Wei, Xiaomeng Hu, Ziye Liu, Yi Hu, Yajun Qin, Hongling Chen, Xiangbi Wu, Jinshui Ge, Tida Zhran, Mostafa Su, Yirong |
| description | Biological nitrogen (N₂) fixation as a source of new N input into the soil by free-living diazotrophs is important for achieving sustainable rice agriculture. However, the dominant environmental drivers or factors influencing N₂ fixation and the functional significance of the diazotroph community structure in paddy soil across a climatic gradient are not yet well understood. Thus, we characterized the diazotroph community and identified the ecological predictors of N₂ fixation potential in four different climate zones (mid-temperate, warm-temperate, subtropical, and tropical paddy soils) in eastern China. Comprehensive nifH gene sequencing, functional activity detection, and correlation analysis with environmental factors were estimated. The potential nitrogenase activity (PNA) was highest in warm-temperate regions, where it was 6.2-, 2.9-, and 2.2-fold greater than in the tropical, subtropical, and mid-temperate regions, respectively; nifH gene abundance was significantly higher in warm-temperate and subtropical zones than in the tropical ormid-temperate zones. Diazotroph diversitywas significantly higher in the tropical climate zone and significantly lower in the mid-temperate zone. Non-metric multidimensional scaling and canonical correlation analysis indicated that paddy soil diazotroph populations differed significantly among the four climate zones, mainly owing to differences in climate and soil pH. Structural equation models and automatic linear models revealed that climate and nutrients indirectly affected PNA by affecting soil pH and diazotroph community, respectively, while diazotroph community, C/P, and nifH gene abundance directly affected PNA. And C/P ratio, pH, and the diazotroph community structure were the main predictors of PNA in paddy soils. Collectively, the differences in diazotroph community structure have ecological significance, with important implications for the prediction of soil N₂-fixing functions under climate change scenarios. |
| doi_str_mv | 10.1007/s00248-020-01591-w |
| format | Article |
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However, the dominant environmental drivers or factors influencing N₂ fixation and the functional significance of the diazotroph community structure in paddy soil across a climatic gradient are not yet well understood. Thus, we characterized the diazotroph community and identified the ecological predictors of N₂ fixation potential in four different climate zones (mid-temperate, warm-temperate, subtropical, and tropical paddy soils) in eastern China. Comprehensive nifH gene sequencing, functional activity detection, and correlation analysis with environmental factors were estimated. The potential nitrogenase activity (PNA) was highest in warm-temperate regions, where it was 6.2-, 2.9-, and 2.2-fold greater than in the tropical, subtropical, and mid-temperate regions, respectively; nifH gene abundance was significantly higher in warm-temperate and subtropical zones than in the tropical ormid-temperate zones. Diazotroph diversitywas significantly higher in the tropical climate zone and significantly lower in the mid-temperate zone. Non-metric multidimensional scaling and canonical correlation analysis indicated that paddy soil diazotroph populations differed significantly among the four climate zones, mainly owing to differences in climate and soil pH. Structural equation models and automatic linear models revealed that climate and nutrients indirectly affected PNA by affecting soil pH and diazotroph community, respectively, while diazotroph community, C/P, and nifH gene abundance directly affected PNA. And C/P ratio, pH, and the diazotroph community structure were the main predictors of PNA in paddy soils. Collectively, the differences in diazotroph community structure have ecological significance, with important implications for the prediction of soil N₂-fixing functions under climate change scenarios.</description><identifier>ISSN: 0095-3628</identifier><identifier>EISSN: 1432-184X</identifier><identifier>DOI: 10.1007/s00248-020-01591-w</identifier><identifier>PMID: 32901387</identifier><language>eng</language><publisher>New York: Springer Science + Business Media</publisher><subject>Abundance ; Biomedical and Life Sciences ; Climate change ; Climate models ; Community structure ; Correlation analysis ; Ecology ; Environmental factors ; Gene sequencing ; Geoecology/Natural Processes ; Life Sciences ; Microbial Ecology ; Microbiology ; Multidimensional scaling ; Multivariate statistical analysis ; Nature Conservation ; NifH gene ; Nitrogen ; Nitrogen fixation ; Nitrogenase ; Nitrogenation ; Nutrients ; pH effects ; Regions ; Rice fields ; Scaling ; Soil ; Soil chemistry ; SOIL MICROBIOLOGY ; Soil pH ; Soil structure ; Soils ; Subtropical zones ; Temperate zones ; Tropical climate ; Water Quality/Water Pollution</subject><ispartof>Microbial ecology, 2021-02, Vol.81 (2), p.425-436</ispartof><rights>Springer Science+Business Media, LLC, part of Springer Nature 2020</rights><rights>Springer Science+Business Media, LLC, part of Springer Nature 2020.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c463t-511c728dfa31476d1885d6952be7fe04cc0ff5bb58ab1becca4ef0b4d5b26a7b3</citedby><cites>FETCH-LOGICAL-c463t-511c728dfa31476d1885d6952be7fe04cc0ff5bb58ab1becca4ef0b4d5b26a7b3</cites><orcidid>0000-0002-5688-1324</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00248-020-01591-w$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00248-020-01591-w$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27903,27904,41467,42536,51297</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32901387$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wu, Chuanfa</creatorcontrib><creatorcontrib>Wei, Xiaomeng</creatorcontrib><creatorcontrib>Hu, Ziye</creatorcontrib><creatorcontrib>Liu, Yi</creatorcontrib><creatorcontrib>Hu, Yajun</creatorcontrib><creatorcontrib>Qin, Hongling</creatorcontrib><creatorcontrib>Chen, Xiangbi</creatorcontrib><creatorcontrib>Wu, Jinshui</creatorcontrib><creatorcontrib>Ge, Tida</creatorcontrib><creatorcontrib>Zhran, Mostafa</creatorcontrib><creatorcontrib>Su, Yirong</creatorcontrib><title>Diazotrophic Community Variation Underlies Differences in Nitrogen Fixation Potential in Paddy Soils Across a Climatic Gradient in China</title><title>Microbial ecology</title><addtitle>Microb Ecol</addtitle><addtitle>Microb Ecol</addtitle><description>Biological nitrogen (N₂) fixation as a source of new N input into the soil by free-living diazotrophs is important for achieving sustainable rice agriculture. However, the dominant environmental drivers or factors influencing N₂ fixation and the functional significance of the diazotroph community structure in paddy soil across a climatic gradient are not yet well understood. Thus, we characterized the diazotroph community and identified the ecological predictors of N₂ fixation potential in four different climate zones (mid-temperate, warm-temperate, subtropical, and tropical paddy soils) in eastern China. Comprehensive nifH gene sequencing, functional activity detection, and correlation analysis with environmental factors were estimated. The potential nitrogenase activity (PNA) was highest in warm-temperate regions, where it was 6.2-, 2.9-, and 2.2-fold greater than in the tropical, subtropical, and mid-temperate regions, respectively; nifH gene abundance was significantly higher in warm-temperate and subtropical zones than in the tropical ormid-temperate zones. Diazotroph diversitywas significantly higher in the tropical climate zone and significantly lower in the mid-temperate zone. Non-metric multidimensional scaling and canonical correlation analysis indicated that paddy soil diazotroph populations differed significantly among the four climate zones, mainly owing to differences in climate and soil pH. Structural equation models and automatic linear models revealed that climate and nutrients indirectly affected PNA by affecting soil pH and diazotroph community, respectively, while diazotroph community, C/P, and nifH gene abundance directly affected PNA. And C/P ratio, pH, and the diazotroph community structure were the main predictors of PNA in paddy soils. Collectively, the differences in diazotroph community structure have ecological significance, with important implications for the prediction of soil N₂-fixing functions under climate change scenarios.</description><subject>Abundance</subject><subject>Biomedical and Life Sciences</subject><subject>Climate change</subject><subject>Climate models</subject><subject>Community structure</subject><subject>Correlation analysis</subject><subject>Ecology</subject><subject>Environmental factors</subject><subject>Gene sequencing</subject><subject>Geoecology/Natural Processes</subject><subject>Life Sciences</subject><subject>Microbial Ecology</subject><subject>Microbiology</subject><subject>Multidimensional scaling</subject><subject>Multivariate statistical analysis</subject><subject>Nature Conservation</subject><subject>NifH gene</subject><subject>Nitrogen</subject><subject>Nitrogen fixation</subject><subject>Nitrogenase</subject><subject>Nitrogenation</subject><subject>Nutrients</subject><subject>pH effects</subject><subject>Regions</subject><subject>Rice fields</subject><subject>Scaling</subject><subject>Soil</subject><subject>Soil chemistry</subject><subject>SOIL MICROBIOLOGY</subject><subject>Soil pH</subject><subject>Soil structure</subject><subject>Soils</subject><subject>Subtropical zones</subject><subject>Temperate zones</subject><subject>Tropical climate</subject><subject>Water Quality/Water 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Community Variation Underlies Differences in Nitrogen Fixation Potential in Paddy Soils Across a Climatic Gradient in China</title><author>Wu, Chuanfa ; Wei, Xiaomeng ; Hu, Ziye ; Liu, Yi ; Hu, Yajun ; Qin, Hongling ; Chen, Xiangbi ; Wu, Jinshui ; Ge, Tida ; Zhran, Mostafa ; Su, Yirong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c463t-511c728dfa31476d1885d6952be7fe04cc0ff5bb58ab1becca4ef0b4d5b26a7b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Abundance</topic><topic>Biomedical and Life Sciences</topic><topic>Climate change</topic><topic>Climate models</topic><topic>Community structure</topic><topic>Correlation analysis</topic><topic>Ecology</topic><topic>Environmental factors</topic><topic>Gene sequencing</topic><topic>Geoecology/Natural Processes</topic><topic>Life Sciences</topic><topic>Microbial Ecology</topic><topic>Microbiology</topic><topic>Multidimensional scaling</topic><topic>Multivariate statistical analysis</topic><topic>Nature Conservation</topic><topic>NifH gene</topic><topic>Nitrogen</topic><topic>Nitrogen fixation</topic><topic>Nitrogenase</topic><topic>Nitrogenation</topic><topic>Nutrients</topic><topic>pH effects</topic><topic>Regions</topic><topic>Rice fields</topic><topic>Scaling</topic><topic>Soil</topic><topic>Soil chemistry</topic><topic>SOIL MICROBIOLOGY</topic><topic>Soil pH</topic><topic>Soil structure</topic><topic>Soils</topic><topic>Subtropical zones</topic><topic>Temperate zones</topic><topic>Tropical climate</topic><topic>Water Quality/Water Pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, Chuanfa</creatorcontrib><creatorcontrib>Wei, Xiaomeng</creatorcontrib><creatorcontrib>Hu, Ziye</creatorcontrib><creatorcontrib>Liu, Yi</creatorcontrib><creatorcontrib>Hu, Yajun</creatorcontrib><creatorcontrib>Qin, Hongling</creatorcontrib><creatorcontrib>Chen, Xiangbi</creatorcontrib><creatorcontrib>Wu, Jinshui</creatorcontrib><creatorcontrib>Ge, Tida</creatorcontrib><creatorcontrib>Zhran, Mostafa</creatorcontrib><creatorcontrib>Su, Yirong</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Ecology Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Virology and AIDS Abstracts</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science 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Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Genetics Abstracts</collection><jtitle>Microbial ecology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wu, Chuanfa</au><au>Wei, Xiaomeng</au><au>Hu, Ziye</au><au>Liu, Yi</au><au>Hu, Yajun</au><au>Qin, Hongling</au><au>Chen, Xiangbi</au><au>Wu, Jinshui</au><au>Ge, Tida</au><au>Zhran, Mostafa</au><au>Su, Yirong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Diazotrophic Community Variation Underlies Differences in Nitrogen Fixation Potential in Paddy Soils Across a Climatic Gradient in China</atitle><jtitle>Microbial ecology</jtitle><stitle>Microb Ecol</stitle><addtitle>Microb Ecol</addtitle><date>2021-02-01</date><risdate>2021</risdate><volume>81</volume><issue>2</issue><spage>425</spage><epage>436</epage><pages>425-436</pages><issn>0095-3628</issn><eissn>1432-184X</eissn><abstract>Biological nitrogen (N₂) fixation as a source of new N input into the soil by free-living diazotrophs is important for achieving sustainable rice agriculture. However, the dominant environmental drivers or factors influencing N₂ fixation and the functional significance of the diazotroph community structure in paddy soil across a climatic gradient are not yet well understood. Thus, we characterized the diazotroph community and identified the ecological predictors of N₂ fixation potential in four different climate zones (mid-temperate, warm-temperate, subtropical, and tropical paddy soils) in eastern China. Comprehensive nifH gene sequencing, functional activity detection, and correlation analysis with environmental factors were estimated. The potential nitrogenase activity (PNA) was highest in warm-temperate regions, where it was 6.2-, 2.9-, and 2.2-fold greater than in the tropical, subtropical, and mid-temperate regions, respectively; nifH gene abundance was significantly higher in warm-temperate and subtropical zones than in the tropical ormid-temperate zones. Diazotroph diversitywas significantly higher in the tropical climate zone and significantly lower in the mid-temperate zone. Non-metric multidimensional scaling and canonical correlation analysis indicated that paddy soil diazotroph populations differed significantly among the four climate zones, mainly owing to differences in climate and soil pH. Structural equation models and automatic linear models revealed that climate and nutrients indirectly affected PNA by affecting soil pH and diazotroph community, respectively, while diazotroph community, C/P, and nifH gene abundance directly affected PNA. And C/P ratio, pH, and the diazotroph community structure were the main predictors of PNA in paddy soils. Collectively, the differences in diazotroph community structure have ecological significance, with important implications for the prediction of soil N₂-fixing functions under climate change scenarios.</abstract><cop>New York</cop><pub>Springer Science + Business Media</pub><pmid>32901387</pmid><doi>10.1007/s00248-020-01591-w</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0002-5688-1324</orcidid></addata></record> |
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| ispartof | Microbial ecology, 2021-02, Vol.81 (2), p.425-436 |
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| source | SpringerLink Journals - AutoHoldings |
| subjects | Abundance Biomedical and Life Sciences Climate change Climate models Community structure Correlation analysis Ecology Environmental factors Gene sequencing Geoecology/Natural Processes Life Sciences Microbial Ecology Microbiology Multidimensional scaling Multivariate statistical analysis Nature Conservation NifH gene Nitrogen Nitrogen fixation Nitrogenase Nitrogenation Nutrients pH effects Regions Rice fields Scaling Soil Soil chemistry SOIL MICROBIOLOGY Soil pH Soil structure Soils Subtropical zones Temperate zones Tropical climate Water Quality/Water Pollution |
| title | Diazotrophic Community Variation Underlies Differences in Nitrogen Fixation Potential in Paddy Soils Across a Climatic Gradient in China |
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