Changes in community assembly processes and co-occurrence networks of soil diazotrophs along an elevational gradient in Tibetan alpine meadows
文献类型：期刊论文
| Author | Wang, Jianlei6,7; Yan, Xiao5; Zhang, Fawei7; Wu, Qihua4; Li, Qingkang1; Liu, Xingyu3; Li, Yingnian7; Lin, Guigang2 |
| Source | EUROPEAN JOURNAL OF SOIL BIOLOGY
 |
| Issued Date | 2022-11-01 |
| Volume | 113Pages:9 |
| Keyword | Assembly process Co-occurrence network Diazotrophic community Elevation gradient Tibetan plateau |
| ISSN | 1164-5563 |
| DOI | 10.1016/j.ejsobi.2022.103445 |
| Corresponding Author | Li, Yingnian(ynli@nwipb.cas.cn) ; Lin, Guigang(linguigang@126.com) |
| English Abstract | Shifts in soil microbial community composition along elevational gradients have been extensively studied; yet, the assembly process and co-occurrence network of soil microbes underlying these shifts remain to be explored, especially for diazotrophs that contribute to the most nitrogen input in natural ecosystems. In this study, we examined how assembly processes and co-occurrence networks of soil diazotrophs changed along an elevational gradient with four elevation levels ranging from 3200 m to 3800 m using high-throughput sequencing of the nifH gene in Tibetan alpine meadows. Our analyses showed that alpha-diversity of soil diazotrophs was lower at low elevations (i.e., 3200 m and 3400 m) relative to high elevations (i.e., 3600 m and 3800 m). Moreover, dominant diazotrophic phyla shifted from Actinobacteria at low elevations to Proteobacteria at high elevations. The change in diazotrophic community composition along the elevation gradient was related to the differences in soil temperature, moisture, NH4+-N concentration and pH. Species rank-abundance distribution models showed that soil diazotrophic communities were mainly assembled by deterministic processes at 3200 m, 3600 m and 3800 m elevations, and by stochastic processes at the 3400 elevation. Additionally, the complexity of diazotrophic co-occurrence networks increased with increasing elevations. Collectively, our findings highlight the change in soil diazotrophic communities along the elevation gradient and the high environmental sensitivity of soil diazotrophs, and suggest that global change could have consequences for soil diazotrophic community compo-sition and structure in montane ecosystems. |
| Funding Project | National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; [31700538] ; [31830015] ; [2019200] |
| WOS Keyword | BACTERIAL COMMUNITIES ; SPATIAL-DISTRIBUTION ; NITROGEN-FIXATION ; DIVERSITY ; PATTERNS ; PH ; ABUNDANCE ; FERTILIZATION ; RHIZOSPHERE ; SENSITIVITY |
| WOS Research Area | Environmental Sciences & Ecology ; Agriculture |
| Language | 英语 |
| Publisher | ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER |
| WOS ID | WOS:000876957500002 |
| Funding Organization | National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/186398]  |
| Collection | 中国科学院地理科学与资源研究所 |
| Corresponding Author | Li, Yingnian; Lin, Guigang |
| Affiliation | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Qianyanzhou Ecol Res Stn, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Inst Appl Ecol, CAS Key Lab Forest Ecol & Management, Shenyang 110016, Peoples R China 3.China Univ Geosci Beijing, Sch Water Resources & Environm, Beijing 100083, Peoples R China 4.Guangdong Acad Sci, Inst Nanfan Seed Ind, Guangzhou 510316, Peoples R China 5.GRINM Resources & Environm Tech Co Ltd, Natl Engn Lab Biohydrometallurgy, Beijing 101407, Peoples R China 6.China Nonferrous Met Ind Technol Dev Exchange Ctr, Beijing 100814, Peoples R China 7.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Jianlei,Yan, Xiao,Zhang, Fawei,et al. Changes in community assembly processes and co-occurrence networks of soil diazotrophs along an elevational gradient in Tibetan alpine meadows[J]. EUROPEAN JOURNAL OF SOIL BIOLOGY,2022,113:9. |
| APA | Wang, Jianlei.,Yan, Xiao.,Zhang, Fawei.,Wu, Qihua.,Li, Qingkang.,...&Lin, Guigang.(2022).Changes in community assembly processes and co-occurrence networks of soil diazotrophs along an elevational gradient in Tibetan alpine meadows.EUROPEAN JOURNAL OF SOIL BIOLOGY,113,9. |
| MLA | Wang, Jianlei,et al."Changes in community assembly processes and co-occurrence networks of soil diazotrophs along an elevational gradient in Tibetan alpine meadows".EUROPEAN JOURNAL OF SOIL BIOLOGY 113(2022):9. |
入库方式： OAI收割
来源：地理科学与资源研究所
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