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题名: Characterization of the prokaryotic diversity through a stratigraphic permafrost core profile from the Qinghai-Tibet Plateau
作者: Hu, WG; Zhang, Q; Tian, T; Li, DY; Cheng, G; Mu, J; Wu, QB; Niu, FJ; An, LZ(安黎哲); Feng, HY
收录类别: SCIE ; MEDLINE ; BIOSIS
出版日期: 2016-05
刊名: EXTREMOPHILES
卷号: 20, 期号:3, 页码:337-349
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.
关键词: Permafrost ; Bacteria ; Archaea ; Prokaryotic diversity ; Community structure ; Qinghai-Tibet Plateau
作者部门: [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
通讯作者: Feng, HY (reprint author), Lanzhou Univ, Sch Life Sci, Minist Educ, Key Lab Cell Act & Stress Adaptat, Lanzhou 730000, Peoples R China. ; Wu, QB (reprint author), Chinese Acad Sci, CAREERI, SKLFSE, Lanzhou 730000, Peoples R China.
学科分类: Biochemistry & Molecular Biology; Microbiology
文章类型: Article
所属项目编号: National Basic Research Program [2012CB026105] ; National Natural Science Foundation [31170482, 31300445, 31370450] ; PhD Programs Foundation of Ministry of Education [20130211120005] ; Chinese Postdoctoral Science Foundation [2013M540780, 2014T70949] ; Fundamental Research Funds for the Central Universities in China [LZUJBKY-2011-119] ; State Key Laboratory of Frozen Soil Engineering, Chinese Academy of Sciences [SKLFSE200901]
所属项目名称: 国家自然科学基金项目 ; 国家重点基础研究发展计划以及国家重大科学研究计划(973计划) ; 高等学校博士学科点专项科研基金 ; 中国博士后科学基金 ; 中央高校基本科研业务费专项资金
项目资助者: NSFC ; MOST ; MOE ; CPSF ; LZU
语种: 英语
DOI: 10.1007/s00792-016-0825-y
ISSN号: 1431-0651
WOS记录号: WOS:000374832100010
PM记录号: 27033516
BIOSIS记录号: BCI:BCI201600451505
IR记录号: WOS:000374832100010
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内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/182008
Appears in Collections:生命科学学院_期刊论文

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Recommended Citation:
Hu, WG,Zhang, Q,Tian, T,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.
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