The Relationship between Core Rhizosphere Taxa and Peanut Nodulation Capacity under Different Cover Crop Amendments
文献类型： 外文期刊
作者： Leng, Ke 1 ; Liu, Jia 2 ; Li, Guilong 2 ; Wang, Ping 2 ; Zhou, Panling 2 ; Sun, Mingzhu 5 ; Liu, Kailou 6 ; Zhang, Jinyi 1 ; Ma, Tingting 1 ; Xiang, Xingjia 1 ;
作者机构： 1.Anhui Univ, Sch Resources & Environm Engn, Anhui Prov Key Lab Wetland Ecosyst Protect & Resto, Hefei 230601, Peoples R China
2.Jiangxi Acad Agr Sci, Soil & Fertilizer & Resources & Environm Inst, Nanchang 330200, Peoples R China
3.Minist Agr & Rural Affairs, Key Lab Acidified Soil Ameliorat & Utilizat, Nanchang 330200, Peoples R China
4.Jinggangshan Inst Red Soil, Jian 343016, Peoples R China
5.Agr Technol Promot Ctr Jiangxi Prov, Nanchang 330046, Peoples R China
6.Jiangxi Inst Red Soil & Germplasm Resources, Nanchang 331717, Peoples R China
关键词： nodulation ability; cover crop; rhizosphere microorganisms; core taxa; sequencing
期刊名称：AGRONOMY-BASEL （ 影响因子：3.7； 五年影响因子：4.0 ）
ISSN：
年卷期： 2023 年 13 卷 2 期
页码：
收录情况： SCI
摘要： Adequate exploitation of legume-rhizobia symbiosis for nitrogen fixation may help to alleviate the overuse of chemical nitrogen fertilizer and aid in sustainable agricultural development. However, controlling this beneficial interaction requires thorough characterization of the effects of soil rhizosphere microorganisms, especially core taxa, on the legume-rhizobia symbiosis. Here, we used Illumina sequencing to investigate the effects of cover crop (Raphanus sativus L. and Lolium perenne L.) residue on the rhizosphere soil microbial community and peanut nodulation ability. The results indicated that Raphanus sativus L. amendment (RS) significantly increased soil available phosphorus (AP) content and peanut nodulation ability, while the Lolium perenne L. amendment (LP) had no noticeable impact on peanut nodulation. LP and RS significantly elevated bacterial and rhizobial diversity, reduced fungal diversity, and shifted microbial community structure (bacteria, 14.7%, p = 0.001; rhizobia, 21.7%, p = 0.001; fungi, 25.5%, p = 0.001). Random forest analysis found that the core rhizosphere taxa, sharing similar ecological preferences, were the primary drivers of peanut nodulation. By least squares regression, soil AP content was found to be positively correlated with the relative abundance of key ecological clusters. Furthermore, RS was found to promote peanut nodulation by increasing the relative abundance of critical rhizosphere taxa. Overall, our findings emphasize that core microbial taxa might play an essential function in the modulation of legume nodulation and provide scientific evidence for the effective management of the plant microbiome.
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