Changes in Microbial Community Structure and Functions of Astragalus Rhizosphere Soil Induced by Biocontrol Bacteria

Using metagenomic sequencing technology, this study explored the changes in microbial community composition and functional gene profiles of Astragalus rhizosphere soil after the application of biocontrol bacteria. At both the phylum and genus levels of microorganisms, this study revealed that the application of biocontrol bacteria could promote the enrichment and recruitment of beneficial soil bacteria, as well as the inhibition of harmful bacteria. Meanwhile, the changes in functional genes were used to verify the phenomenon that biocontrol bacteria suppress pathogenic bacteria and promote plant growth.