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The composition and diversity of arbuscular mycorrhizal fungi in karst soils and roots collected from mulberry of different ages

文献类型： 外文期刊

作者： Xing, Dan 1 ; Wang, Zhenhong 3 ; Xiao, Jinjun 4 ; Han, Shiyu 2 ; Luo, Chaobin 2 ; Zhang, Aimin 2 ; Song, Lala 2 ; Gao, Xi 1 ;

作者机构： 1.Guizhou Univ, Coll Forestry, Guiyang, Guizhou, Peoples R China

2.Guizhou Acad Agr Sci, Res Inst Sericulture, Guiyang, Guizhou, Peoples R China

3.Changan Univ, Sch Environm Sci & Engn, Xian, Shaanxi, Peoples R China

4.Res Inst Mt Resources, Guiyang, Guizhou, Peoples R China

5.Guizhou Acad Agr Sci, Res Inst Tea, Guiyang, Guizhou, Peoples R China

关键词： mycorrhizal biotechnology; Morns sp.; rocky desertification; root; soil properties

期刊名称：CIENCIA RURAL （ 影响因子：0.803； 五年影响因子：0.887 ）

ISSN： 0103-8478

年卷期： 2018 年 48 卷 10 期

页码：

收录情况： SCI

摘要： Arbuscular mycorrhizal fungi (AMF) have been attracted more scientific attentions due to its critical role in enhancement of drought tolerance of plants for growth and vegetation restoration in karst fragile ecosystem. However, scientists know little about the AMF composition and diversity occurring in root systems of mulberry (Morus sp.), and in karst habitats which return land use from mulberry forestry, as well as the effects of soil environment change on the diversity of the AMF communities. To understand: (1) the AMF community composition and diversity at different stage of returning cropland to forest; and (2) the effects of soil environment change on the diversity of the AMF communities, soil and mulberry root samples were collected from Bijie and Libo sites, China, which experienced one and ten years, respectively, after returning croplands to forest. With the high throughput 454-sequencing technology, 8 known genera including 83 virtual species were distinguished and the genera Glomus, Paraglomus, Archaeospora and Diversispora were found to be dominant in soil and root sample. Compared to the samples in Libo, the genera Glomus, Paraglomus, Acaulospora and Claroideoglomus in root samples at Bijie site had a relatively abundance of species indicating that the returning cropland to forest is benefit to the AMF diversity and abundance, which was attribute to the variation of soil physiochemical properties. This conclusion is of great significance for guiding the return of farmland to forests.

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