The effects of climate, catchment land use and local factors on the abundance and community structure of sediment ammonia-oxidizing microorganisms in Yangtze lakes

doi:10.1186/s13568-017-0479-x

CORC > 武汉植物园 > 中国科学院武汉植物园

	The effects of climate, catchment land use and local factors on the abundance and community structure of sediment ammonia-oxidizing microorganisms in Yangtze lakes
	Jiang, Xiaoliang 2; Wu, Yujing 2; Liu, Guihua 2; Liu, Wenzhi 2; Lu, Bei 1,2
刊名	AMB EXPRESS
	2017-09-13
卷号	7 页码:13
关键词	AOA AOB Land use Nitrification Submerged vegetation
ISSN号	2191-0855
DOI	10.1186/s13568-017-0479-x
英文摘要	Ammonia-oxidizing archaea (AOA) and bacteria (AOB) play important roles in regulating the nitrification process in lake ecosystems. However, the relative effects of climate, catchment land use and local conditions on the sediment ammonia-oxidizing communities in lakes remain unclear. In this study, the diversity and abundance of AOA and AOB communities were investigated in ten Yangtze lakes by polymerase chain reaction (PCR), clone library and quantitative PCR techniques. The results showed that the abundances of both AOA and AOB in bare sediments were considerably but not significantly higher than those in vegetated sediments. Interestingly, AOB communities were more sensitive to changes in local environmental factors and vegetation characteristics than were AOA communities. Amongst climate and land use variables, mean annual precipitation, percentage of agriculture and percentage of vegetation were the key determinants of AOB abundance and diversity. Additionally, total organic carbon and chlorophyll-a concentrations in lake water were significantly related to AOB abundance and diversity. The results of the ordination analysis indicated that 81.2 and 84.3% of the cumulative variance for the species composition of AOA and AOB communities could be explained by the climate, land use and local factors. The climate and local environments played important roles in shaping AOA communities, whereas catchment agriculture and water chlorophyll-a concentration were key influencing factors of AOB communities. Our findings suggest that the composition and structure of sediment ammonia- oxidizing communities in Yangtze lakes are strongly influenced by different spatial scale factors.
资助项目	National Natural Science Foundation of China[31570535]
WOS研究方向	Biotechnology & Applied Microbiology
语种	英语
出版者	BIOMED CENTRAL LTD
WOS记录号	WOS:000410930300002
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/1308]
专题	中国科学院武汉植物园
通讯作者	Liu, Wenzhi
作者单位	1.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Lumo Rd 1, Wuhan 430074, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Xiaoliang,Wu, Yujing,Liu, Guihua,et al. The effects of climate, catchment land use and local factors on the abundance and community structure of sediment ammonia-oxidizing microorganisms in Yangtze lakes[J]. AMB EXPRESS,2017,7:13.
APA	Jiang, Xiaoliang,Wu, Yujing,Liu, Guihua,Liu, Wenzhi,&Lu, Bei.(2017).The effects of climate, catchment land use and local factors on the abundance and community structure of sediment ammonia-oxidizing microorganisms in Yangtze lakes.AMB EXPRESS,7,13.
MLA	Jiang, Xiaoliang,et al."The effects of climate, catchment land use and local factors on the abundance and community structure of sediment ammonia-oxidizing microorganisms in Yangtze lakes".AMB EXPRESS 7(2017):13.