Structural Characteristics of Rhizosphere Soil Microbial Communities in Soybean at Different Growth Stages
In order to explore the changes of rhizosphere soil microbial population structure in different growth stages of soybean.Rhizosphere soil samples were collected from soybean at period of emergence(VE),early blooming(R1),pod period(R4),pod filling period(R6)and full-ripe period(R8).Illumina high-throughput sequencing was used to study the diversity characteristics and composition of rhizosphere fungal and bacterial communities.The results indicated that the trends in diversity and richness of fungal and bacterial communities were similar.The diversity index and richness index were higher during the VE,then decreased during the R1,increased during the R4,decreased again during the R6,and increased during the R8.The dominant fungal phyla in each sample were Ascomycota and Mortierellomycota.The dominant fungal genera were different at different growth stages.The dominant fungal genera during the VE and R1 were Stachybotrys,while the dominant fungal genera during the R4,R6,and R8 were Talaromyces.The dominant bacterial phyla in each sample were Actinobacteria,Proteobacteria,and Acidobacteriota.The dominant bacterial genera during the VE,R1,R4 and R6 are Arthrobacter,while the dominant bacterial genera during the R8 was Streptomyces.The changes in soybean rhizosphere microbial population varied with the growth period.The diversity and richness of rhizosphere fungi and bacteria were highest at the emergence period,and the richness of bacterial population in rhizosphere soil was higher than that of fungi.
soybeangrowing periodrhizosphere soil microorganismsfungusbacteriarichness indexcliversity index
万方数据
维普
