气候变化领域集成服务门户(CCPortal): Culturable bacteria isolated from seven high-altitude ice cores on the Tibetan Plateau

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DOI	10.1017/jog.2018.86
	Culturable bacteria isolated from seven high-altitude ice cores on the Tibetan Plateau
	Liu, Yongqin; Priscu, John C.; Ya, Tandong; Vick-Majors, Trista J.; Michaud, Alexander B.; Sheng, Liang
通讯作者	Liu, YQ (通讯作者)
发表日期	2019
ISSN	0022-1430
EISSN	1727-5652
起始页码	29
结束页码	38
卷号	65 期号:249
英文摘要	Microorganisms are the most abundant organisms on Earth, and microbial abundance records preserved in ice cores have been connected to records of environmental change. As an alternative to high resolution abundance records, which can be difficult to recover, we used culture-dependent and culture-independent methods to examine bacteria in glacier ice from the Tibetan Plateau (TP). We recovered a total of 887 bacterial isolates from ice cores of up to 164 m in depth retrieved from seven glaciers, located across the TP. These isolates were related to 53 genera in the Actinobacteria, Firmicutes, Bacteroidetes, and Proteobacteria, with 13 major genera accounting for 78% of isolates. Most of the genera were common across the geographic region covered by our sampling, but there were differences in the genera recovered from different depths in the ice, with the deepest portions of the ice cores dominated by a single genus (Sporosarcina). Because microorganisms deposited on glaciers must survive atmospheric transport under a range of temperatures, temperature tolerance should be an important survival mechanism. We tested isolate growth across a range of temperatures (0-35 degrees C), and found psychrotolerance to be common. Together, our results show that ice depth, and by extension age, are characterized by different types of microorganisms, providing new information about microbial records in ice.
关键词	HIMALAYAN GLACIAL ICE PHYSIOLOGICAL DIVERSITY COMMUNITY POPULATION RECOVERY DATABASE ECOLOGY GROWTH DEPTH WATER
英文关键词	ice core; microbiology; mountain glaciers
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000462017000003
来源期刊	JOURNAL OF GLACIOLOGY
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/259627
推荐引用方式 GB/T 7714	Liu, Yongqin,Priscu, John C.,Ya, Tandong,et al. Culturable bacteria isolated from seven high-altitude ice cores on the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2019,65(249).
APA	Liu, Yongqin,Priscu, John C.,Ya, Tandong,Vick-Majors, Trista J.,Michaud, Alexander B.,&Sheng, Liang.(2019).Culturable bacteria isolated from seven high-altitude ice cores on the Tibetan Plateau.JOURNAL OF GLACIOLOGY,65(249).
MLA	Liu, Yongqin,et al."Culturable bacteria isolated from seven high-altitude ice cores on the Tibetan Plateau".JOURNAL OF GLACIOLOGY 65.249(2019).