Changes of the Bacterial Abundance and Communities in Shallow Ice Cores from Dunde and Muztagata Glaciers, Western China

doi:10.3389/fmicb.2016.01716

	Changes of the Bacterial Abundance and Communities in Shallow Ice Cores from Dunde and Muztagata Glaciers, Western China
	Chen, Yong 1; Li, Xiang-Kai 1; Si, Jing2 ; Wu, Guang-Jian 3,4; Tian, Li-De 3,4; Xiang, Shu-Rong 1,3,4
刊名	FRONTIERS IN MICROBIOLOGY
	2016-11-01
卷号	7 页码:16
关键词	live cell density taxonomic group micro-biogeography glacier Tibet Plateau
ISSN号	1664-302X
DOI	10.3389/fmicb.2016.01716
英文摘要	In this study, six bacterial community structures were analyzed from the Dunde ice core (9.5-m-long) using 16S rRNA gene cloning library technology. Compared to the Murtagata mountain ice core (37-m-long), the Dunde ice core has different dominant community structures, with five genus-related groups Blastococcus sp./Propionibactenum, Cryobacterium-related., Flavobacterium sp., Pedobacter sp., and Polaromas sp. that are frequently found in the six tested ice layers from 1990 to 2000. Live and total microbial density patterns were examined and related to the dynamics of physical-chemical parameters, mineral particle concentrations, and stable isotopic ratios in the precipitations collected from both Murtagata and Dunde ice cores. The Murtagata ice core revealed seasonal response patterns for both live and total cell density, with high cell density occurring in the warming spring and summer months indicated by the proxy value of the stable isotopic ratios. Seasonal analysis of live cell density for the Dunde ice core was not successful due to the limitations of sampling resolution. Both ice cores showed that the cell density peaks were frequently associated with high concentrations of particles. A comparison of microbial communities in the Dunde and Murtagata glaciers showed that similar taxonomic members exist in the related ice cores, but the composition of the prevalent genus-related groups is largely different between the two geographically different glaciers. This indicates that the micro biogeography associated with geographic differences was mainly influenced by a few dominant taxonomic groups.
资助项目	NSF project of China[31400430] ; NSF project of China[40471025] ; NSF project of China[40871046]
WOS关键词	TIBETAN PLATEAU ; SP-NOV ; HERBASPIRILLUM-HUTTIENSE ; COMB. NOV. ; DUST ; ANTARCTICA ; DIVERSITY ; GREENLAND ; RECORD ; RECLASSIFICATION
WOS研究方向	Microbiology
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000388646700002
资助机构	NSF project of China
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/43812]
专题	中国科学院近代物理研究所
通讯作者	Xiang, Shu-Rong
作者单位	1.Lanzhou Univ, Sch Life Sci, Lanzhou, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou, Peoples R China 3.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China 4.Chinese Acad Sci, Lab Ice Core & Cod Reg Environm, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Chen, Yong,Li, Xiang-Kai,Si, Jing,et al. Changes of the Bacterial Abundance and Communities in Shallow Ice Cores from Dunde and Muztagata Glaciers, Western China[J]. FRONTIERS IN MICROBIOLOGY,2016,7:16.
APA	Chen, Yong,Li, Xiang-Kai,Si, Jing,Wu, Guang-Jian,Tian, Li-De,&Xiang, Shu-Rong.(2016).Changes of the Bacterial Abundance and Communities in Shallow Ice Cores from Dunde and Muztagata Glaciers, Western China.FRONTIERS IN MICROBIOLOGY,7,16.
MLA	Chen, Yong,et al."Changes of the Bacterial Abundance and Communities in Shallow Ice Cores from Dunde and Muztagata Glaciers, Western China".FRONTIERS IN MICROBIOLOGY 7(2016):16.