Anaerobic ammonium oxidation (anammox) bacterial diversity, abundance, and activity in marsh sediments of the Yangtze Estuary

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 海岸带生物学与生物资源利用重点实验室 > 海岸带生物学与生物资源利用所重点实验室

	Anaerobic ammonium oxidation (anammox) bacterial diversity, abundance, and activity in marsh sediments of the Yangtze Estuary
	Hou, Lijun 1; Zheng, Yanling 1; Liu, Min 2; Gong, Jun3 ; Zhang, Xiaoli3 ; Yin, Guoyu 1; You, Li 1
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
	2013-07-01
卷号	118 期号:3 页码:1237-1246
关键词	nitrogen anammox Yangtze Estuary
英文摘要	Anaerobic ammonium oxidation (anammox) as an important process of nitrogen cycle has been studied in estuarine environments. However, knowledge about the dynamics of anammox bacteria and their interactions with associated activity remains scarce in these environments. Here we report the anammox bacterial diversity, abundance, and activity in the Yangtze Estuary, using molecular and isotope-tracing techniques. The phylogenetic analysis of 16S rRNA indicated that high anammox bacterial diversity occurred in this estuary, including Scalindua, Brocadia, Kuenenia, and two novel clusters. The patterns of community composition and diversity of anammox bacteria differed across the estuary. Salinity was a key environmental factor defining the geographical distribution and diversity of the anammox bacterial community at the estuarine ecosystem. Temperature and organic carbon also had significant influences on anammox bacterial biodiversity. The abundance of anammox bacteria ranged from 2.63x10(6) and 1.56x10(7) gene copies g(-1), and its spatiotemporal variations were related significantly to salinity, temperature, and nitrite content. The anammox activity was related to temperature, nitrite, and anammox bacterial abundance, with values of 0.94-6.61nmolNg(-1)h(-1). The tight link between the anammox and denitrification processes implied that denitrifying bacteria may be a primary source of nitrite for the anammox bacteria in the estuarine marshes. On the basis of the N-15 tracing experiments, the anammox process was estimated to contribute 6.6%-12.9% to the total nitrogen loss whereas the remainder was attributed to denitrification.
研究领域[WOS]	Environmental Sciences & Ecology ; Geology
关键词[WOS]	EVOLUTIONARY GENETICS ANALYSIS ; OXYGEN MINIMUM ZONE ; OXIDIZING BACTERIA ; FRESH-WATER ; NITRATE REDUCTION ; MARINE-SEDIMENTS ; RIVER ESTUARY ; CHANGJIANG ESTUARY ; SEQUENCE ALIGNMENT ; MOLECULAR EVIDENCE
收录类别	SCI
语种	英语
WOS记录号	WOS:000325549900022
公开日期	2016-04-26
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/9050]
专题	烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室
作者单位	1.E China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China 2.E China Normal Univ, Dept Geog, Shanghai 200062, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China
推荐引用方式 GB/T 7714	Hou, Lijun,Zheng, Yanling,Liu, Min,et al. Anaerobic ammonium oxidation (anammox) bacterial diversity, abundance, and activity in marsh sediments of the Yangtze Estuary[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2013,118(3):1237-1246.
APA	Hou, Lijun.,Zheng, Yanling.,Liu, Min.,Gong, Jun.,Zhang, Xiaoli.,...&You, Li.(2013).Anaerobic ammonium oxidation (anammox) bacterial diversity, abundance, and activity in marsh sediments of the Yangtze Estuary.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,118(3),1237-1246.
MLA	Hou, Lijun,et al."Anaerobic ammonium oxidation (anammox) bacterial diversity, abundance, and activity in marsh sediments of the Yangtze Estuary".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 118.3(2013):1237-1246.