Abundance and distribution of ammonia-oxidizing microorganisms in the sediments of Beiyun River, China
文献类型：期刊论文
| 作者 | Bao, Linlin; Wang, Xiaoyan; Chen, Yongjuan |
| 刊名 | ANNALS OF MICROBIOLOGY
 |
| 出版日期 | 2016-09 |
| 卷号 | 66期号:3页码:1075-1086 |
| 关键词 | Ammonium Ammonia-oxidizing bacteria Ammonia-oxidizing archaea Sediment Urban river |
| 英文摘要 | Ammonia oxidation, driven by ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB), plays an important role in the global nitrogen cycle. However, the population and distribution of ammonia-oxidizing microorganisms in the sediments of urban rivers with intensive anthropogenic nitrogen inputs is still unclear. In this study, we compared the diversity and abundance of AOA and AOB in Beiyun River sediments from summer to winter. AOB dominated numerically over AOA and the abundance of both the amoA genes were much higher in winter than in summer, while AOA communities were more phylogenetically diverse than AOB in this study area. Phylogenetic analysis revealed that Nitrosospira sp. was the dominant AOB in summer, with Nitrosomonas sp. dominant in winter, while no specific genus was found for AOA in present study. The main pollutants and microbial communities in the sediments deriving from Yangwa Watergate were different from other sites. Clone libraries showed that a considerable percentage of amoA sequences matched closely with those from wastewater treatment plant (WWTP) systems. The seasonal change in nitrate content was significantly and positively related to the seasonal variation in amoA abundance (P < 0.05). Total nitrogen, total organic carbon, ammonium, and pH were the main environmental factors accounting for the difference in community composition of ammonia-oxidizing microorganisms in the sediments of Beiyun River. These findings suggest that effluent inputs, water gate operation, and seasonal changes might be key factors determining the abundance and distribution of AOB and AOA in the sediments of urban rivers. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/35520]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Bao, Linlin,Wang, Xiaoyan,Chen, Yongjuan. Abundance and distribution of ammonia-oxidizing microorganisms in the sediments of Beiyun River, China[J]. ANNALS OF MICROBIOLOGY,2016,66(3):1075-1086. |
| APA | Bao, Linlin,Wang, Xiaoyan,&Chen, Yongjuan.(2016).Abundance and distribution of ammonia-oxidizing microorganisms in the sediments of Beiyun River, China.ANNALS OF MICROBIOLOGY,66(3),1075-1086. |
| MLA | Bao, Linlin,et al."Abundance and distribution of ammonia-oxidizing microorganisms in the sediments of Beiyun River, China".ANNALS OF MICROBIOLOGY 66.3(2016):1075-1086. |
入库方式： OAI收割
来源：生态环境研究中心
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