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Variation in rhizosphere microbial communities and its association with the nodulation ability of peanut

文献类型： 外文期刊

作者： Li, Guilong 1 ; Li, Pengfa 1 ; Wu, Meng 1 ; Liu, Kai 1 ; Evangelos, Petropoulos 3 ; Liu, Jia 4 ; Liu, Ming 1 ; Li, Zhongpei 1 ;

作者机构： 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Peoples R China

2.Univ Chinese Acad Sci, Beijing, Peoples R China

3.Newcastle Univ, Sch Engn, Newcastle Upon Tyne, Tyne & Wear, England

4.Jiangxi Acad Agr Sci, Soil & Fertilizer & Resources & Environm Inst, Nanchang, Jiangxi, Peoples R China

关键词： Peanut nodulation; agricultural practices; Vicia villosa Roth; root-associated microbiome

期刊名称：ARCHIVES OF AGRONOMY AND SOIL SCIENCE （ 影响因子：2.242； 五年影响因子：2.76 ）

ISSN： 0365-0340

年卷期：

页码：

收录情况： SCI

摘要： Harnessing the rhizobia-legume symbiosis is a promising strategy to confront sustainability in agriculture. Agricultural research on legume nodulation has mostly focused on abiotic parameters, yet the importance of biotic variables on legumes nodulation is still ambiguous. We explored the variation of bacterial communities in peanut rhizosphere soil under different agricultural practices (peanut fallow rotation and Vicia villosa Roth-peanut rotation) using Illumina sequencing. Samples were collected in 2020 from a 9-year study (2012-2020) located at Dongxiang countryside (Jiangxi province, China). Compared with peanut fallow rotation (PFR), Vicia villosa Roth-peanut rotation (VPR) significantly (p< 0.05) decreased soil pH (by 0.4-3.9%) and number of peanut nodules (by 20-63.7%). By using the Random forest tool, we found that the difference in peanut nodulation was associated with specific microbiome alterations. The indicator taxa positively responded to the peanut nodulation was enriched in the PFR practice, while VPR led to increased abundance of indicator taxa which negatively responded to peanut nodulation. The path analysis indicated that soil pH has an indirect effect on peanut nodulation through its link with the abundance of indicator taxa. Our work provides evidence that the variation in peanut rhizosphere microbial communities was associated with peanut nodulation.

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