Structure and Function of Rhizosphere Soil and Root Endophytic Microbial Communities Associated With Root Rot of .

(Burk.) F. H. Chen is a Chinese medicinal plant of the Araliaceae family used for the treatment of cardiovascular and cerebrovascular diseases in Asia. is vulnerable to root rot disease, which reduces the yield of . In this study, we analyzed the rhizosphere soil and root endophyte microbial communities of from different geographical locations using high-throughput sequencing. Our results revealed that the rhizosphere soil microbial community was more diverse than the root endophyte community. , , , and can help resist the invasion of root rot disease. , , and are pathogenic bacteria of . The upregulation of amino acid transport and metabolism in the soil would help to resist pathogens and improve the resistance of The ABC transporter and gene modulating resistance genes can improve the disease resistance of , and the increase in the number of GTs (glycosyltransferases) and GHs (glycoside hydrolases) families may be a molecular manifestation of root rot. In addition, the complete genomes of two species and one species were obtained. This study demonstrated the microbial and functional diversity in the rhizosphere and root microbial community of and provided useful information for a better understanding of the microbial community in root rot. Our results provide insights into the molecular mechanism underlying root rot and other plant rhizosphere microbial communities.