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Microbial community structure in major habitats above 6000 m on Mount Everest

  • Articles
  • Microbiology
  • Published:
Chinese Science Bulletin

Abstract

Bacterial abundance in surface snow between 6600 and 8000 m a.s.l. on the northern slope of Mt. Everest was investigated by flow cytometry. Bacterial diversity in serac ice at 6000 m a.s.l., glacier meltwater at 6350 m, and surface snow at 6600 m a.s.l. was examined by constructing a 16S rRNA gene clone library. Bacterial abundance in snow was higher than that in the Antarctic but similar to other mountain regions in the world. Bacterial abundance in surface snow increased with altitude but showed no correlation with chemical parameters. Bacteria in the cryosphere on Mt. Everest were closely related to those isolated from soil, aquatic environments, plants, animals, humans and other frozen environments. Bacterial community structures in major habitats above 6000 m were variable. The Cytophaga-Flavobacterium-Bacteroides (CFB) group absolutely dominated in glacial meltwater, while β-Proteobacteria and the CFB group dominated in serac ice, and β-Proteobacteria and Actinobacteria dominated in surface snow. The remarkable differences among the habitats were most likely due to the bacterial post-deposition changes during acclimation processes.

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Authors and Affiliations

  1. Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100085, China

    Liu YongQin, Yao TanDong & Kang ShiChang

  2. State Key Laboratory of Cryospheric Science, Chinese Academy of Sciences, Lanzhou, 730000, China

    Yao TanDong & Kang ShiChang

  3. State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, 361005, China

    Jiao NianZhi, Zeng YongHui, Huang SiJun & Luo TingWei

Authors
  1. Liu YongQin
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  2. Yao TanDong
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  3. Kang ShiChang
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  4. Jiao NianZhi
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  5. Zeng YongHui
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  6. Huang SiJun
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  7. Luo TingWei
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Corresponding authors

Correspondence to Yao TanDong or Jiao NianZhi.

Additional information

Supported by the Ministry of Science and Technology of China (Grant No. 2005CB422004), the National Natural Science Foundation of China (Grant Nos. 40121101 and 40401054), the Innovation Program (Grant No. KZCX3-SW-339), and the “Talent Project” of the Chinese Academy of Sciences, the Social Commonweal Research Project of Ministry of Science and Technology of China (2005DIA3J106)

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Liu, Y., Yao, T., Kang, S. et al. Microbial community structure in major habitats above 6000 m on Mount Everest. CHINESE SCI BULL 52, 2350–2357 (2007). https://doi.org/10.1007/s11434-007-0360-4

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  • DOI: https://doi.org/10.1007/s11434-007-0360-4

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