柴达木地区患根腐病枸杞根际土壤微生物多样性分析OACSTPCD

To understand the structure and diversity of fungal and bacterial communities in root tissues and rhizosphere soil of Lycium barbarum plants infested with root rot,root tissues and rhizosphere soil samples of Lycium barbarum infested with root rot in Qaidam region were analyzed using high-throughput sequencing technology.The results showed that bacterial species were slightly more abundant in soil than that in root tissue,and fungal diversity and abundance were not significantly different between soil and root tissue samples.At phylum level,Proteobacteria and Bacteroidetes had higher abundance in bacterial communities,and Ascomycota and Basidiomycota had higher abundance in fungal communities.At genus level,Pseudomonas was dominated in bacteria,and Cladosporium and Mortierella were dominated in fungi.The correlation analysis showed that bacteria were more different between root tissue and soil samples,and fungi were better correlated in root tissue and soil samples.Both Cladosporium and Mortierella were significantly upregulated in the root system and soil,which assumed to be associated with the pathogenesis of root rot of Lycium barbarum.