气候变化领域集成服务门户(CCPortal): Variation with depth of the abundance, diversity and pigmentation of culturable bacteria in a deep ice core from the Yuzhufeng Glacier, Tibetan Plateau

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DOI	10.1007/s00792-017-0973-8
	Variation with depth of the abundance, diversity and pigmentation of culturable bacteria in a deep ice core from the Yuzhufeng Glacier, Tibetan Plateau
	Shen, Liang; Liu, Yongqin; Wang, Ninglian; Jiao, Nianzhi; Xu, Baiqing; Liu, Xiaobo
通讯作者	Liu, YQ (通讯作者)
发表日期	2018
ISSN	1431-0651
EISSN	1433-4909
起始页码	29
结束页码	38
卷号	22 期号:1
英文摘要	It has been suggested that the cryosphere is a new biome uniquely dominated by microorganisms, although the ecological characteristics of these cold-adapted bacteria are not well understood. We investigated the vertical variation with depth of the proportion of pigmented bacteria recovered from an ice core drilled in the Yuzhufeng Glacier, Tibetan Plateau. A total of 25,449 colonies were obtained from 1250 ice core sections. Colonies grew on only one-third of the inoculated Petri dishes, indicating that although the ice core harbored abundant culturable bacteria, bacteria could not be isolated from every section. Four phyla and 19 genera were obtained; Proteobacteria formed the dominant cluster, followed by Actinobacteria, Bacteroidetes and Firmicutes. The proportion of pigmented bacteria increased with depth from 79 to 95% and yellow-colored colonies predominated throughout the ice core, making up 47% of all the colonies. Pigments including alpha- and beta-carotene, diatoxanthin, peridinin, zea/lutein, butanoyloxy, fucoxanthin and fucoxanthin were detected in representative colonies with alpha-carotene being the dominant carotenoid. To the best of our knowledge, this is the highest resolution study of culturable bacteria in a deep ice core reported to date.
关键词	PHYSIOLOGICAL DIVERSITY MICROORGANISMS ACCUMULATION ADAPTATION RESPONSES RECOVERY GROWTH
英文关键词	Ice core; Pigmented bacteria; Vertical variation; High resolution
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Microbiology
WOS类目	Biochemistry & Molecular Biology ; Microbiology
WOS记录号	WOS:000422852100003
来源期刊	EXTREMOPHILES
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/259309
推荐引用方式 GB/T 7714	Shen, Liang,Liu, Yongqin,Wang, Ninglian,et al. Variation with depth of the abundance, diversity and pigmentation of culturable bacteria in a deep ice core from the Yuzhufeng Glacier, Tibetan Plateau[J]. 中国科学院青藏高原研究所,2018,22(1).
APA	Shen, Liang,Liu, Yongqin,Wang, Ninglian,Jiao, Nianzhi,Xu, Baiqing,&Liu, Xiaobo.(2018).Variation with depth of the abundance, diversity and pigmentation of culturable bacteria in a deep ice core from the Yuzhufeng Glacier, Tibetan Plateau.EXTREMOPHILES,22(1).
MLA	Shen, Liang,et al."Variation with depth of the abundance, diversity and pigmentation of culturable bacteria in a deep ice core from the Yuzhufeng Glacier, Tibetan Plateau".EXTREMOPHILES 22.1(2018).