Influences of anthropogenic disturbance on nitrite-dependent anaerobic methane-oxidizing bacterial community in water level fluctuation zone of the Three Gorges Reservoir

doi:10.13671/j.hjkxxb.2018.0053

	Influences of anthropogenic disturbance on nitrite-dependent anaerobic methane-oxidizing bacterial community in water level fluctuation zone of the Three Gorges Reservoir
	Ye, Fei 2,3; Wu, Shengjun 2; Jiang, Yi 2; Wu, Xiaobing 2,3; Li, Lei 1; Deng, Zhanyong 4; Wang, Yu 2
刊名	Huanjing Kexue Xuebao/Acta Scientiae Circumstantiae
	2018
卷号	38 期号:8 页码:3266-3277
ISSN号	02532468
DOI	10.13671/j.hjkxxb.2018.0053
英文摘要	Nitrite-dependent anaerobic methane-oxidizing (n-damo) mediated by "Candidatus Methylomirabilis oxyfera (M. oxyfera)" is a recently discovered process in carbon cycle. The presence of n-damo bacteria in the water level fluctuation zone (WLFZ) of the Three Gorges Reservoir (TGR) was reported previously. In order to understand the influence of human activities on the n-damo bacteria, the n-damo bacterial community from two WLFZs in the TGR with contrast anthropogenic disturbance was investigated. The results showed that the gene abundance of n-damo bacteria in the site of Xiaohe (8.98×102 to 3.31×105 copies•g-1), which has high level of anthropogenic disturbance, was generally higher than that of Baijiaxi (4.72×102 to 5.32×104 copies•g-1). Besides, the gene abundance increased after water flooding in both sites. A linear positive correlation was observed between the abundance and accumulate flooding time in Baijiaxi. Whereas the abundance in Xiaohe showed a significant negative correlation with the total nitrogen. Phylogenetic and diversity analyses showed that the community structure of n-damo bacteria was similar in parallel elevations of the two sites before flooding, but greater differences were observed after flooding. The community diversity of n-damo bacteria in soils of low elevations were higher than that of higher elevations. The community structure of n-damo bacteria in WLFZ showed obvious spatial-temporal heterogeneity, and the heterogeneity was further increased by water flooding. These results suggest that the water flooding and human activities are of equal importance in influencing the n-damo bacterial community diversity. Overall, both the water flooding and human activities could affect the n-damo bacterial community in WLFZ, and the human activities have the effect of increasing the abundance and diversity. © 2018, Science Press. All right reserved.
语种	中文
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/9885]
专题	中国科学院重庆绿色智能技术研究院
作者单位	1.Beijing Academy of Water Science and Technology, Beijing; 100048, China; 2.Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing; 400714, China; 3.University of Chinese Academy of Sciences, Beijing; 100049, China; 4.Chongqing Kaizhou Water Bureau, Chongqing; 405400, China
推荐引用方式 GB/T 7714	Ye, Fei,Wu, Shengjun,Jiang, Yi,et al. Influences of anthropogenic disturbance on nitrite-dependent anaerobic methane-oxidizing bacterial community in water level fluctuation zone of the Three Gorges Reservoir[J]. Huanjing Kexue Xuebao/Acta Scientiae Circumstantiae,2018,38(8):3266-3277.
APA	Ye, Fei.,Wu, Shengjun.,Jiang, Yi.,Wu, Xiaobing.,Li, Lei.,...&Wang, Yu.(2018).Influences of anthropogenic disturbance on nitrite-dependent anaerobic methane-oxidizing bacterial community in water level fluctuation zone of the Three Gorges Reservoir.Huanjing Kexue Xuebao/Acta Scientiae Circumstantiae,38(8),3266-3277.
MLA	Ye, Fei,et al."Influences of anthropogenic disturbance on nitrite-dependent anaerobic methane-oxidizing bacterial community in water level fluctuation zone of the Three Gorges Reservoir".Huanjing Kexue Xuebao/Acta Scientiae Circumstantiae 38.8(2018):3266-3277.