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	Characterization of the prokaryotic diversity through a stratigraphic permafrost core profile from the Qinghai-Tibet Plateau
	Hu, Weigang1; Zhang, Qi1; Tian, Tian1; Li, Dingyao1; Cheng, Gang1; Mu, Jing1; Wu, Qingbai2; Niu, Fujun2; An, Lizhe1; Feng, Huyuan1
刊名	EXTREMOPHILES
	2016-05-01
卷号	20期号:3页码:337-349
关键词	Permafrost Bacteria Archaea Prokaryotic diversity Community structure Qinghai-Tibet Plateau
ISSN号	1431-0651
DOI	10.1007/s00792-016-0825-y
通讯作者	Wu, Qingbai(qbwu@lzb.ac.cn) ; Feng, Huyuan(fenghy@lzu.edu.cn)
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.
收录类别	SCI
WOS关键词	MICROBIAL COMMUNITIES ; ACTIVE LAYER ; SP NOV. ; BACTERIAL COMMUNITIES ; THAWING PERMAFROST ; ARCHAEAL PHYLUM ; CLIMATE-CHANGE ; SOIL ; CHINA ; TUNDRA
WOS研究方向	Biochemistry & Molecular Biology ; Microbiology
WOS类目	Biochemistry & Molecular Biology ; Microbiology
语种	英语
出版者	SPRINGER JAPAN KK
WOS记录号	WOS:000374832100010
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557302
专题	寒区旱区环境与工程研究所
通讯作者	Wu, Qingbai; Feng, Huyuan
作者单位	1.Lanzhou Univ, Sch Life Sci, Minist Educ, Key Lab Cell Act & Stress Adaptat, Lanzhou 730000, Peoples R China 2.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]. EXTREMOPHILES,2016,20(3):337-349.
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),337-349.
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):337-349.

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