气候变化领域集成服务门户(CCPortal): Change of microbial communities in glaciers along a transition of air masses in western China

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DOI	10.1029/2010JG001298
	Change of microbial communities in glaciers along a transition of air masses in western China
	Xiang, Shu-Rong; Chen, Yong; Shang, Tian-Cui; Jing, Ze-Fan; Wu, Guangjian
通讯作者	Xiang, SR (通讯作者)
发表日期	2010
ISSN	2169-8953
EISSN	2169-8961
卷号	115
英文摘要	Microbial community dynamics across glaciers in different climatic zones provide important information about the sources, transportation pathways, and deposition of microorganisms. To better understand the possible driving forces of microbial community shifts in glacier ice at a large spatial scale, 16S rRNA gene amplification was used to establish clone libraries containing 95 bacterial sequences from three different habitats in the Qiangyong Gacier in 2005. The libraries were used in phylogenetic comparison with 149 previously reported sequences from the surface samples collected from the Kuytun 51, and East Rongbuk glaciers in the same year. The results showed the presence of cosmopolitan and endemic species, and displayed a tendency of zonal distribution of bacterial communities at genera and community levels, corresponding to the geographic placement of the three glaciers. Data also showed a significant difference in the proportion of dominant phylogenetic groups in the three glaciers. Comamonadaceae/Polaromonas (Betaproteobacteria) and Flexibacteraceae (Bacteroidetes) were dominant in the Qiangyong Glacier, Cyanobacteria, Comamonadaceae/Polaromonas, and Rhodoferax (Betaproteobacteria) were dominant in the Kuytun 51 Glacier, and Acinetobacteria (Gammaproteobacteria) were dominant in the Rongbuk Glacier. In conclusion, the current study provides evidence of microbial biogeography in glacier ice at both the fine lineage and whole community levels. The biogeographical patterns were generally associated with the hydrological transition over the glaciers in the northern periphery and southern part of the Tibetan plateau. This supports our hypothesis of air mass behavior being one of the main drivers determining the zonal distribution of microbial communities across the mountain glaciers in western China.
关键词	CULTURABLE BACTERIA NO. 1 ICE DIVERSITY IDENTIFICATION CYANOBACTERIA DEPOSITION DUST
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary
WOS记录号	WOS:000283546900002
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257806
推荐引用方式 GB/T 7714	Xiang, Shu-Rong,Chen, Yong,Shang, Tian-Cui,et al. Change of microbial communities in glaciers along a transition of air masses in western China[J]. 中国科学院青藏高原研究所,2010,115.
APA	Xiang, Shu-Rong,Chen, Yong,Shang, Tian-Cui,Jing, Ze-Fan,&Wu, Guangjian.(2010).Change of microbial communities in glaciers along a transition of air masses in western China.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,115.
MLA	Xiang, Shu-Rong,et al."Change of microbial communities in glaciers along a transition of air masses in western China".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 115(2010).