Microbial diversity accumulates in a downstream direction in the Three Gorges Reservoir
文献类型：期刊论文
| 作者 | Wang, Shang ; Hou, Weiguo; Jiang, Hongchen; Huang, Liuqin; Dong, Hailiang; Chen, Shu; Wang, Bin; Chen, Yongcan; Lin, Binliang; Deng, Ye
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| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2021-03 |
| 卷号 | 101页码:156-167 |
| 关键词 | Three Gorges Dam Microbial source tracking Microbial community coalescence Immigration Accumulating effect |
| ISSN号 | 1001-0742 |
| 英文摘要 | Organic and inorganic materials migrate downstream and have important roles in regulating environmental health in the river networks. However, it remains unclear whether and how a mixture of materials (i.e., microbial species) from various upstream habitats contribute to microbial community coalescence upstream of a dam. Here we track the spatial variation in microbial abundance and diversity in the Three Gorges Reservoir based on quantitative PCR and 16S rRNA gene high-throughput sequencing data. We further quantitatively assess the relative contributions of microbial species from mainstem, its tributaries, and the surrounding riverbank soils to the area immediately upstream of the Three Gorges Dam (TGD). We found an increase of microbial diversity and the convergent microbial distribution pattern in areas immediately upstream of TGD, suggesting this area become a new confluence for microbial diversity immigrating from upstream. Indeed, the number of shared species increased from upstream to TGD but unique species decreased, indicating immigration of various sources of microbial species overwhelms local environmental conditions in structuring microbial community close to TGD. By quantifying the sources of microbial species close to TGD, we found little contribution from soils as compared to tributaries, especially for sites closer to TGD, suggesting tributary microbes have greater influence on microbial diversity and environmental health in the Three Gorges Reservoir. Collectively, our results suggest that tracking microbial geographic origin and evaluating accumulating effects of microbial diversity shed light on the ecological processes in microbial communities and provide information for regulating aquatic ecological health. (C) 2020 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| WOS研究方向 | Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46126]  |
| 专题 | 生态环境研究中心_中国科学院环境生物技术重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, CAS Key Lab Environm Biotechnol, Beijing 100085, Peoples R China 2.Southwest Univ Sci & Technol, Sch Environm & Resource, Mianyang 621010, Sichuan, Peoples R China 3.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China 4.China Univ Geosci, Sch Ocean Sci, Beijing 100083, Peoples R China 5.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China 6.Tsinghua Univ, Dept Hydraul Engn, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Shang,Hou, Weiguo,Jiang, Hongchen,et al. Microbial diversity accumulates in a downstream direction in the Three Gorges Reservoir[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2021,101:156-167. |
| APA | Wang, Shang.,Hou, Weiguo.,Jiang, Hongchen.,Huang, Liuqin.,Dong, Hailiang.,...&Deng, Ye.(2021).Microbial diversity accumulates in a downstream direction in the Three Gorges Reservoir.JOURNAL OF ENVIRONMENTAL SCIENCES,101,156-167. |
| MLA | Wang, Shang,et al."Microbial diversity accumulates in a downstream direction in the Three Gorges Reservoir".JOURNAL OF ENVIRONMENTAL SCIENCES 101(2021):156-167. |
入库方式： OAI收割
来源：生态环境研究中心
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