Rhizosphere-associated nosZII microbial community of Phragmites australis and its influence on nitrous oxide emissions in two different regions
文献类型：期刊论文
| 作者 | Su, Rui; Huang, Rui; Zeng, Jin; Zhao, Dayong; He, Rujia; Yu, Zhongbo; Wu, Qinglong L. |
| 刊名 | JOURNAL OF SOILS AND SEDIMENTS
 |
| 出版日期 | 2021 |
| 卷号 | 21期号:10页码:3326-3341 |
| 英文摘要 | Purpose The recently identified nosZII gene plays a key role in mitigating nitrous oxide (N2O) emissions, and emergent macrophytes along lakeshores are areas of significant N2O emissions. The rhizosphere microenvironments of emergent macrophytes provide habitats that can potentially influence the abundance and composition of nosZII-containing microorganisms and, therefore, N2O emissions. Methods Here we compared the N2O/(N2O+N-2) ratio between the rhizospheres of Phragmites australis and bulk sediments from lakes situated in the middle and lower reaches of the Yangtze River plain (YR) and Yunnan-Kweichow plateau (YK) in China. The abundance and composition of nosZII-containing members were investigated using the real-time quantitative PCR and high-throughput sequencing techniques. We also investigated the effects of sediment properties and denitrifying microbial communities on the N2O/(N2O+N-2) ratio through path analysis. Results The rhizospheres of Phragmites australis maintained significantly higher potential denitrification rates, higher denitrifier abundance, and higher diversity of N2O-reducing microbial community, but lower N2O/(N2O+N-2) ratio at the YR site (P < 0.05). The N2O/(N2O+N-2) ratio at the YR site was mainly influenced by N nutrients and the abundance of nirK, nirS, and nosZII genes, whereas the sediment organic matter, and the abundance of nirK, nirS, and nosZI genes were strong predictors of the N2O/(N2O+N-2) ratio at the YK site. Conclusion This study revealed variable effects of Phragmites australis on altering the nosZII community composition and mitigating N2O emissions between different regions, which would provide useful information for reducing N2O emissions from the aquatic ecosystem. |
| 源URL | [http://159.226.73.51/handle/332005/20544]  |
| 专题 | 中国科学院南京地理与湖泊研究所 |
| 推荐引用方式 GB/T 7714 | Su, Rui,Huang, Rui,Zeng, Jin,et al. Rhizosphere-associated nosZII microbial community of Phragmites australis and its influence on nitrous oxide emissions in two different regions[J]. JOURNAL OF SOILS AND SEDIMENTS,2021,21(10):3326-3341. |
| APA | Su, Rui.,Huang, Rui.,Zeng, Jin.,Zhao, Dayong.,He, Rujia.,...&Wu, Qinglong L..(2021).Rhizosphere-associated nosZII microbial community of Phragmites australis and its influence on nitrous oxide emissions in two different regions.JOURNAL OF SOILS AND SEDIMENTS,21(10),3326-3341. |
| MLA | Su, Rui,et al."Rhizosphere-associated nosZII microbial community of Phragmites australis and its influence on nitrous oxide emissions in two different regions".JOURNAL OF SOILS AND SEDIMENTS 21.10(2021):3326-3341. |
入库方式： OAI收割
来源：南京地理与湖泊研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。