首页|Characterization of Microbial Community Structure in Rhizosphere Soils of Cowskin Azalea (Rhododendron aureum Georgi) on Northern Slope of Changbai Mountains, China

Characterization of Microbial Community Structure in Rhizosphere Soils of Cowskin Azalea (Rhododendron aureum Georgi) on Northern Slope of Changbai Mountains, China

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The vegetation and soil are mutual environmental factors, soil characteristics, such as chemical properties and microorganism that affect the vegetation occurrence, development and succession speed.In this study, we evaluated the structure of microbial communities of rhizosphere of Cowskin Azalea (Rhododendron aureum Georgi) populations and compared with non-rhizosphere soils at four sample sites of the Changbai Mountains, China, and analyzed the correlation between chemical properties of soil and microbial communities.The results showed that microbial structure and soil chemical properties are significant superior to non-rhizosphere at all four sample sites.The rhizosphere microorganisms are mainly composed of bacteria, actinomycetes, followed by fungi least.The principal component analysis (PCA) biplot displayed that there are differences between rhizosphere and non-rhizosphere soils for microflora;Through correlation analysis, we found that the bacteria is clearly influenced by pH on the Changbai Mountains, besides pH, other soil features such as NO3--N.These data highlight that R.aureum as the dominant vegetation living in the alpine tundra is a key factor in the formation of soil microorganism and improving soil fertility, and is of great significance for the maintenance of alpine tundra ecosystem.

Rhododendron aureum Georgimicrobial community structurerhizosphereChangbai Mountains

ZHAO Wei、QI Xiaojuan、LYU Jianwei、YU Zhengxiang、CHEN Xia

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National & Local United Engineering Laboratory for Chinese Herbal Medicine Breeding and Cultivation,Jilin University,Changchun 130112,China

School of Life Science,Jilin University,Changchun 130021,China

Changbai Mountains Academy of Sciences,Antu 133613,China

College of Basic Medicine,Qiqihar Medical University,Qiqihar 161006,China

Jilin University,Changchun 130112,China

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Under the auspices of Wildlife Conservation and Management of National Forestry Bureau of China

2016

中国地理科学(英文版)
中国科学院长春地理研究所

中国地理科学(英文版)

CSTPCDCSCDSCI
影响因子:0.754
ISSN:1002-0063
年,卷(期):2016.26(1)
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