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DOI	10.1007/s00792-016-0825-y
	Characterization of the prokaryotic diversity through a stratigraphic permafrost core profile from the Qinghai-Tibet Plateau
	Hu, Weigang; Zhang, Qi; Tian, Tian; Li, Dingyao; Cheng, Gang; Mu, Jing; Wu, Qingbai; Niu, Fujun; An, Lizhe; Feng, Huyuan
发表日期	2016
ISSN	1431-0651
EISSN	1433-4909
起始页码	337
结束页码	349
卷号	20 期号:3
英文摘要	Permafrost on the Qinghai-Tibet Plateau is one of the most sensitive regions to climate warming, thus characterizing its microbial diversity and community composition may be important for understanding their potential responses to climate changes. Here, we investigated the prokaryotic diversity in a 10-m-long permafrost core from the Qinghai-Tibet Plateau by restriction fragment length polymorphism analysis targeting the 16S rRNA gene. We detected 191 and 17 bacterial and archaeal phylotypes representing 14 and 2 distinct phyla, respectively. Proteobacteria was the dominant bacterial phylum, while archaeal communities were characterized by a preponderance of Thaumarchaeota. Some of prokaryotic phylotypes were closely related to characterized species involved in carbon and nitrogen cycles, including nitrogen fixation, methane oxidation and nitrification. However, the majority of the phylotypes were only distantly related to known taxa at order or species level, suggesting the potential of novel diversity. Additionally, both bacterial alpha diversity and community composition changed significantly with sampling depth, where these communities mainly distributed according to core horizons. Arthrobacter-related phylotypes presented at high relative abundance in two active layer soils, while the deeper permafrost soils were dominated by Psychrobacter-related clones. Changes in bacterial community composition were correlated with most measured soil variables, such as carbon and nitrogen contents, pH, and conductivity.
英文关键词	Permafrost; Bacteria; Archaea; Prokaryotic diversity; Community structure; Qinghai-Tibet Plateau
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Microbiology
WOS类目	Biochemistry & Molecular Biology ; Microbiology
WOS关键词	MICROBIAL DIVERSITY ; ACTIVE LAYER ; SP NOV. ; BACTERIAL COMMUNITIES ; ARCHAEAL PHYLUM ; CLIMATE-CHANGE ; SOIL ; ECOLOGY ; CARBON ; BIODIVERSITY
WOS记录号	WOS:000374832100010
来源期刊	EXTREMOPHILES
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/240256
作者单位	[Hu, Weigang; Zhang, Qi; Tian, Tian; Li, Dingyao; Cheng, Gang; Mu, Jing; An, Lizhe; Feng, Huyuan] Lanzhou Univ, Sch Life Sci, Minist Educ, Key Lab Cell Act & Stress Adaptat, Lanzhou 730000, Peoples R China; [Wu, Qingbai; Niu, Fujun] Chinese Acad Sci, CAREERI, SKLFSE, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Hu, Weigang,Zhang, Qi,Tian, Tian,et al. Characterization of the prokaryotic diversity through a stratigraphic permafrost core profile from the Qinghai-Tibet Plateau[J]. 中国科学院西北生态环境资源研究院,2016,20(3).
APA	Hu, Weigang.,Zhang, Qi.,Tian, Tian.,Li, Dingyao.,Cheng, Gang.,...&Feng, Huyuan.(2016).Characterization of the prokaryotic diversity through a stratigraphic permafrost core profile from the Qinghai-Tibet Plateau.EXTREMOPHILES,20(3).
MLA	Hu, Weigang,et al."Characterization of the prokaryotic diversity through a stratigraphic permafrost core profile from the Qinghai-Tibet Plateau".EXTREMOPHILES 20.3(2016).