Microbial Diversity and Functions in the Rhizosphere Soil of Different Varieties of Pogostemon cablin
To investigate the differences in the composition and functional characteristics of rhizosphere microbial communities in different varieties of Pogostemon cablin,the study analyzed key agronomic traits and the physicochemical properties of rhi-zosphere soil from different varieties of P.cablin.High-throughput sequencing technology was employed to analyze the char-acteristics and functions of bacterial and fungal communities in their rhizosphere soil.The results showed that there were significant differences in organic matter and available potassium content between the rhizosphere soils of the two varieties of P.cablin.The physicochemical properties of the soil were closely associated with the Firmicutes of bacteria and the Chytridiomycota of fungi.The agronomic traits,such as plant height,stem diameter,crown width,and branching number of P.cablin from Zhanjiang(CK),were superior to those of P.cablin from Shipai(T1).In the rhizosphere soils of both P.cablin varieties,there were nine bacterial phyla with a relative abundance greater than 1.00%,and a total of 16 bacteri-al genera.However,the relative abundances of each bacterial phylum varied between the two varieties.There were three fungal phyla and ten fungal genera with a relative abundance greater than 1.00%,with differences in the relative abun-dances of fungal phyla and genera observed between the two varieties.Functional prediction analysis revealed a rich diversi-ty of bacterial community functions,encompassing six primary functional categories,including metabolism and genetic in-formation processing,and 32 secondary functional categories such as amino acid metabolism and carbohydrate metabolism.The fungal community comprised seven nutritional types,including saprophytic and pathogenic types,with saprophytic nu-trition being the most abundant in both varieties of P.cablin.In summary,the microbial community structure and function-al diversity in the rhizosphere soil of P.cablin are rich,although varietal type has a limited impact on the structure and di-versity of the rhizosphere microbial community.
万方数据
维普
