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Variation with depth of the abundance, diversity and pigmentation of culturable bacteria in a deep ice core from the Yuzhufeng Glacier, Tibetan Plateau
Shen, L (Shen, Liang)1,2; Liu, YQ (Liu, Yongqin)1,2,3; Wang, NL (Wang, Ninglian)2,4; Jiao, NZ (Jiao, Nianzhi)5; Xu, BQ (Xu, Baiqing)1,2; Liu, XB (Liu, Xiaobo)1,6
Source PublicationEXTREMOPHILES
2018
Volume22Issue:1Pages:29-38
DOI10.1007/s00792-017-0973-8
Abstract

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.

Subject Area地理学
WOS IDWOS:000422852100003
Language英语
Indexed BySCIE
KeywordVostok Accretion Ice Physiological Diversity Siberian Permafrost Low-temperature Freezing-point Snow Microorganisms Accumulation Adaptation Responses
WOS Research AreaBiochemistry & Molecular Biology ; Microbiology
WOS SubjectBiochemistry & Molecular Biology ; Microbiology
Cooperation Status国内
ISSN1431-0651
Department高寒生态重点实验室
PublisherSPRINGER JAPAN KK
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8784
Collection图书馆
Corresponding AuthorLiu, YQ (Liu, Yongqin)
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China;
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China;
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China;
4.Northwest Univ Xian, Shanxi Key Lab Earth Surface Syst & Environm Carr, Xian, Shaanxi, Peoples R China;
5.Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen, Peoples R China;
6.CAS TU, Kathmandu Ctr Res & Educ, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
Shen, L ,Liu, YQ ,Wang, NL ,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]. EXTREMOPHILES,2018,22(1):29-38.
APA Shen, L ,Liu, YQ ,Wang, NL ,Jiao, NZ ,Xu, BQ ,&Liu, XB .(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),29-38.
MLA Shen, L ,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):29-38.
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