气候变化领域集成服务门户(CCPortal): Differences in community composition of bacteria in four glaciers in western China

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DOI	10.5194/bg-7-1937-2010
	Differences in community composition of bacteria in four glaciers in western China
	An, L. Z.; Chen, Y.; Xiang, S. -R.; Shang, T. -C.; Tian, L. -D.
通讯作者	Xiang, SR (通讯作者)
发表日期	2010
ISSN	1726-4170
EISSN	1726-4189
起始页码	1937
结束页码	1952
卷号	7 期号:6
英文摘要	Microbial community patterns vary in glaciers worldwide, presenting unique responses to global climatic and environmental changes. Four bacterial clone libraries were established by 16S rRNA gene amplification from four ice layers along the 42-m-long ice core MuztB drilled from the Muztag Ata Glacier. A total of 151 bacterial sequences obtained from the ice core MuztB were phylogenetically compared with the 71 previously reported sequences from three ice cores extracted from ice caps Malan, Dunde, and Puruogangri. Six phylogenetic clusters Flavisolibacter, Flexibacter (Bacteroidetes), Acinetobacter, Enterobacter (Gammaproteobacteria), Planococcus/Anoxybacillus (Firmicutes), and Propionibacter/Luteococcus (Actinobacteria) frequently occurred along the Muztag Ata Glacier profile, and their proportion varied by seasons. Sequence analysis showed that most of the sequences from the ice core clustered with those from cold environments, and the sequence clusters from the same glacier more closely grouped together than those from the geographically isolated glaciers. Moreover, bacterial communities from the same location or similarly aged ice formed a cluster, and were clearly separate from those from other geographically isolated glaciers. In summary, the findings provide preliminary evidence of zonal distribution of microbial community, and suggest biogeography of microorganisms in glacier ice.
关键词	RIBOSOMAL-RNA GENES ICE CORE ANNEALING TEMPERATURE MICROBIAL DIVERSITY AIR-TEMPERATURE PRIMER MISMATCH RECA PROTEIN COPY NUMBER BIAS SNOW
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology
WOS类目	Ecology ; Geosciences, Multidisciplinary
WOS记录号	WOS:000279390700008
来源期刊	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/257802
推荐引用方式 GB/T 7714	An, L. Z.,Chen, Y.,Xiang, S. -R.,et al. Differences in community composition of bacteria in four glaciers in western China[J]. 中国科学院青藏高原研究所,2010,7(6).
APA	An, L. Z.,Chen, Y.,Xiang, S. -R.,Shang, T. -C.,&Tian, L. -D..(2010).Differences in community composition of bacteria in four glaciers in western China.BIOGEOSCIENCES,7(6).
MLA	An, L. Z.,et al."Differences in community composition of bacteria in four glaciers in western China".BIOGEOSCIENCES 7.6(2010).