气候变化领域集成服务门户(CCPortal): Change of bacterial community in the Malan Ice Core and its relation to climate and environment

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DOI	10.1360/03wd0422
	Change of bacterial community in the Malan Ice Core and its relation to climate and environment
	Xiang, SR; Yao, TD; An, LZ; Li, Z; Wu, GJ; Wang, YQ; Xu, BQ; Wang, JX
发表日期	2004
ISSN	1001-6538
EISSN	1861-9541
起始页码	1869
结束页码	1875
卷号	49 期号:17 页码:1869-1875
英文摘要	In order to understand the relationship between the community structure of bacteria in ice core and the past climate and environment, we initiated the study on the microorganisms in the three selected ice samples from the Malan ice core drilled from the Tibetan Plateau. The 16S ribosomal DNA (rDNA) molecules were directly amplified from the melt water samples, and three 16S rDNA clone libraries were established. Among 94 positive clones, eleven clones with unique restriction pattern were used for partial sequence and compared with eight reported sequences from the same ice core. The phylotypes were divided into 5 groups: alpha, beta, gamma proteobacteria; CFB, and other eubacteria group. Among them, there were many typical Malan glacial bacteria pertaining to psychrophilies and new bacteria found in the ice core. At a longer time scale, the concentration distribution of typical Malan glacial bacteria with depth showed negative correlation with temperature variations and was coincident with dirty layer. It implied the influence of temperature on the microbial record through impact on the concentrations of the typical Malan glacial bacteria. In addition, the nutrition contained in ice was another important factor controlling the distribution of microbial population in ice core section. Moreover, the result displayed an apparent layer distribution of bacterial community in the ice core section, which reflected the microbial response to the past climatic and environmental conditions at the time of deposition.
关键词	LAKE VOSTOK MICROORGANISMS ALIGNMENT RECOVERY RECORDS
英文关键词	Tibetan Plateau; ice core; phylogenetic; typical Malan glacial bacteria; bacterial community concentration
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000225282600015
来源期刊	CHINESE SCIENCE BULLETIN
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/459
推荐引用方式 GB/T 7714	Xiang, SR,Yao, TD,An, LZ,et al. Change of bacterial community in the Malan Ice Core and its relation to climate and environment[J]. 中国科学院青藏高原研究所,2004,49(17):1869-1875.
APA	Xiang, SR.,Yao, TD.,An, LZ.,Li, Z.,Wu, GJ.,...&Wang, JX.(2004).Change of bacterial community in the Malan Ice Core and its relation to climate and environment.CHINESE SCIENCE BULLETIN,49(17),1869-1875.
MLA	Xiang, SR,et al."Change of bacterial community in the Malan Ice Core and its relation to climate and environment".CHINESE SCIENCE BULLETIN 49.17(2004):1869-1875.