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DOI10.5194/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
ISSN1726-4170
EISSN1726-4189
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 GENESICE COREANNEALING TEMPERATUREMICROBIAL DIVERSITYAIR-TEMPERATUREPRIMER MISMATCHRECA PROTEINCOPY NUMBERBIASSNOW
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).
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