Enhancement of beneficial microbiomes in plant-soil continuums through organic fertilization:Insights into the composition and multifunctionality  

作　　者：Wen-Jing Li Xin-Yuan Zhou Xin-Li An Li-Juan Li Chen-Shuo Lin Hua Li Hong-Zhe Li 

机构地区：[1]Key Lab of Urban Environment and Health,Institute of Urban Environment,Chinese Academy of Sciences,Xiamen 361021,China [2]University of Chinese Academy of Sciences,Beijing 100049,China [3]State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products,Institute of Environment,Resource,Soil and Fertilizers,Zhejiang Academy of Agricultural Sciences,Hangzhou 310021,China

出　　处：《Soil Ecology Letters》2024年第3期109-120,共12页土壤生态学快报（英文）

基　　金：supported by the State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products(No.2021DG700024-KF202307).

摘　　要：Soil microbiomes play a crucial role in maintaining ecological functions and are of great importance for soil health.Some of them could bring benefits to plants for growth promotion.Despite numerous studies have focused on specific beneficial bacteria and their interactions with soils and plants,we still lack a comprehensive understanding of beneficial communities in plant–soil continuums and their responses to agricultural activities.To address this gap,we carried out a microcosm experiment using 16S rRNA amplicon sequencing to explore the effects of organic fertilization on beneficial communities in plant–soil continuums and assess their potential multifunctionality.Our findings reveal that organic fertilization had a positive impact on the beneficial functionality of bacterial communities in plant–soil continuums.This improvement was primarily attributed to the optimized soil physicochemical conditions resulting from organic fertilization.Additionally,organic fertilization increased the complexity of bacterial co-occurrence networks in both soils and the endosphere.Keystone taxa in the endosphere undergone a shift of functions toward pathogen suppression as the result of organic fertilization.Furthermore,this study revealed that plants exhibited a preference for internalizing beneficial bacteria over other type of bacteria.We also provided new insights for evaluating the multifunctionality of microbiomes,and found that the functionality of beneficial communities in plant–soil continuums is enhanced by organic fertilization.All these findings suggested that organic fertilization can be an effective strategy for maintaining plant and soil health.

关 键 词：plant–soil continuums beneficial bacteria agricultural activities multifunctionality endosphere 

分 类 号：S147[农业科学—肥料学]