数字农科院2.0

Plant and soil responses to tillage practices change arbuscular mycorrhizal fungi populations during crop growth

文献类型： 外文期刊

作者： Li, Jing;Jia, Lijuan;Struik, Paul C.;An, Zhengfeng;Wang, Zhen;Xu, Zhuwen;Ji, Lei;Yao, Yuqing;Lv, Junjie;Zhou, Tao;Jin, Ke

作者机构：

关键词： tillage practices;arbuscular mycorrhizal fungi;wheat growth stages;co-occurrence;Loess Plateau

期刊名称： FRONTIERS IN MICROBIOLOGY

ISSN：

年卷期： 2024 年 15 卷

页码：

收录情况： SCIE（2024版）

摘要： Background Tillage practices can substantially affect soil properties depending on crop stage. The interaction between tillage and crop growth on arbuscular mycorrhizal fungi (AMF) communities remains unclear. We investigated the interactions between four tillage treatments (CT: conventional tillage, RT: reduced tillage, NT: no tillage with mulch, and SS: subsoiling with mulch), maintained for 25 years, and two wheat growth stages (elongation stage and grain filling stage) on AMF diversity and community composition.Results The AMF community composition strongly changed during wheat growth, mainly because of changes in the relative abundance of dominant genera Claroideoglomus, Funneliformi, Rhizophagu, Entrophospora, and Glomus. Co-occurrence network analysis revealed that the grain filling stage had a more complex network than the elongation stage. Redundancy analysis results showed that keystone genera respond mainly to changes in soil organic carbon during elongation stage, whereas the total nitrogen content affected the keystone genera during grain filling. Compared with CT, the treatments with mulch, i.e., NT and SS, significantly changed the AMF community composition. The change of AMF communities under different tillage practices depended on wheat biomass and soil nutrients. NT significantly increased the relative abundances of Glomus and Septoglomus, while RT significantly increased the relative abundance of Claroideoglomus.Conclusion Our findings indicate that the relative abundance of dominant genera changed during wheat growth stages. Proper tillage practices (e.g., NT and SS) benefit the long-term sustainable development of the Loess Plateau cropping systems.

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