Journal of Guangxi Normal University(Natural Science Edition) ›› 2019, Vol. 37 ›› Issue (2): 158-167.doi: 10.16088/j.issn.1001-6600.2019.02.020

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Effects of Lithology and Vegetation Type on the Soil AM Fungi Community in Karst Region

ZHANG Xiaoxiao1,2,3, WANG Miaomiao2,3, FENG Shuzhen4, QIU Husen2,3, GAI Shuangshuang5, ZHAO Lei1,2,3, HU Yajun2,3, HE Xunyang2,3*, LU Zujun1   

  1. 1.College of Life Sciences, Guangxi Normal University, Guilin Guangxi 541006, China;
    2.Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha Hunan 410125, China;
    3.Huanjiang Observation and Research Station for Karst Ecosystems, Chinese Academy of Sciences, Huanjiang Guangxi 547100, China;
    4.College of Medicine, Guangxi University of Science and Technology, Liuzhou Guangxi 545006, China;
    5.College of Economic and Management, Guangxi Science and Technology Normal University, Liuzhou Guangxi 545004, China
  • Received:2018-03-01 Online:2019-04-25 Published:2019-04-28

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Abstract: The changes of arbuscular mycorrhizal (AM) Fungi Community Structure in karst soil under different lithological and vegetation types were detected by nested PCR and high-throughput sequencing, and the influencing factors of AM Fungi Community Structure under different lithological and vegetation types were revealed.A total of 185 OTU (Operational Taxonomic Unit) were obtained from high-throughput sequencing. These OTU could be divided into 7 families and 9 genera, of which the Glomus was the dominant genus in the study area. The results of One-way ANOVA and independent sample t-test analysis showed that there were significant differences in soil physical and chemical properties and AM fungi dominant genus between sample plots under the different lithology and vegetation type conditions. The results of Two-way ANOVA showed that the lithology and vegetation type and the interaction between them had significant influence on the diversity and community of AM fungi. The results of PCoA showed that there were significant differences in the structure of AM fungi community under the different lithology and vegetation type conditions. The results of RDA showed that soil total phosphorus, total potassium, available phosphorus, sand content and exchangeable magnesium ions affected the structure of AM fungal community. In summary, the research results showed that the lithology and vegetation type changed soil total phosphorus, total potassium, available phosphorus, sand content, exchangeable magnesium ions in soil, and thus affected the structure of AM fungi community in soil.

Key words: Karst, lithology, vegetation type, arbuscular mycorrhizal fungi, community structure

CLC Number: 

  • Q938.1
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