Biogeographical distribution of dissimilatory nitrate reduction to ammonium (DNRA) bacteria in wetland ecosystems around the world
文献类型：期刊论文
| 作者 | Pan, Huawei; Yuan, Dongdan; Liu, Weiyue; Pi, Yanxia; Wang, Shanyun ; Zhu, Guibing
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| 刊名 | JOURNAL OF SOILS AND SEDIMENTS
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| 出版日期 | 2020-10 |
| 卷号 | 20期号:10页码:3769-3778 |
| 关键词 | Abundance Biogeographical distribution DNRA High-throughput sequencing Wetland ecosystems |
| ISSN号 | 1439-0108 |
| 英文摘要 | Purpose Nitrate (NO3-) is the second preferred terminal electron acceptor after oxygen (O-2), as it plays an essential role as the main electron acceptor for respiration under oxygen-depleted conditions. Dissimilatory nitrate reduction to ammonium (DNRA) is an increasingly important process of microbial-driven nitrate reduction in wetland ecosystems, making it necessary to study the biogeographical distribution and structure of the DNRA community, and to identify the factors governing DNRA in global wetlands. Materials and methods We collected samples from 15 wetland sites around the world and used qPCR assay analysis to quantify the DNRA functional genenrfA. High-throughput sequencing was conducted to analyze the microbial diversity and community structure of DNRA bacteria. The most connected genera were derived from molecular ecological network analysis. Principal coordinates analysis (PCoA), redundancy analysis (RDA), and Pearson's correlation analysis were used to explore the relationship between microbial structure and environmental factors. Results and discussion The environmental conditions of the wetlands varied largely with the latitude. At the phylum level,Proteobacteriawas dominant, andAnaerolineawas the key genus. Pearson's correlation analysis also illustrated that the annual average temperature, as a factor of latitude, most significantly affected DNRA abundance, followed by total organic matter (TOM) and C/N ratio. Conclusions For the first time, we summarized the characteristics of DNRA bacteria at the molecular level, along with the influencing factors, in wetlands with a wide biogeographical distribution. This study provides a scientific foundation for the future study of DNRA bacteria in wetlands around the world. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45244]  |
| 专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Pan, Huawei,Yuan, Dongdan,Liu, Weiyue,et al. Biogeographical distribution of dissimilatory nitrate reduction to ammonium (DNRA) bacteria in wetland ecosystems around the world[J]. JOURNAL OF SOILS AND SEDIMENTS,2020,20(10):3769-3778. |
| APA | Pan, Huawei,Yuan, Dongdan,Liu, Weiyue,Pi, Yanxia,Wang, Shanyun,&Zhu, Guibing.(2020).Biogeographical distribution of dissimilatory nitrate reduction to ammonium (DNRA) bacteria in wetland ecosystems around the world.JOURNAL OF SOILS AND SEDIMENTS,20(10),3769-3778. |
| MLA | Pan, Huawei,et al."Biogeographical distribution of dissimilatory nitrate reduction to ammonium (DNRA) bacteria in wetland ecosystems around the world".JOURNAL OF SOILS AND SEDIMENTS 20.10(2020):3769-3778. |
入库方式： OAI收割
来源：生态环境研究中心
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