首页|Study on diversity and temporal-spatial characteristics of eukaryotic microorganisms on Glacier No.1 at the Urumqi River Head, Tianshan
Study on diversity and temporal-spatial characteristics of eukaryotic microorganisms on Glacier No.1 at the Urumqi River Head, Tianshan
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Surface snow samples of different altitudes and snow pit samples were collected from Glacier No.1 at the Urumqi River Head,Tianshan.Denaturing gradient gel electrophoresis (DGGE) was used to examine the diversity and temporal-spatial characteristics of eukaryotic microorganisms with different altitudes and depths.Results show that the eukaryotic microorganisms belong to four kingdoms-Viridiplantae,Fungi,Amoebozoa,and Alveolata.Among them,algae (especially Chlamydomonadales)were the dominant group.The diversity of eukaryotic microorganisms was negatively correlated with altitude and accumulation time,but positively correlated with δ18O values.These results indicate that temperature is the main factor for the temporal-spatial change of eukaryotic microorganisms,and the diversity of eukaryotic microorganisms could be an index for climate and environmental change.
Glacier No.1 atthe Urumqi River Headeukaryotic microorganismsdiversitytemporal-spatial characteristicsDGGE
Wei Zhang、Gao Sen Zhang、Guang Xiu Liu、Zhong Qin Li、Li Zhe An
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Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China
School of Life Science, Lanzhou University, Lanzhou, Gansu 730000, China
国家自然科学基金国家自然科学基金国家自然科学基金China Postdoctoral Science Fund
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NSTL
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