The application of <i>Rhizobium subbaraonis</i> TY15 increased soybean growth and disease resistance by modifying rhizosphere microbial communities.

ABSTRACT: Microbial biofertilizers present a sustainable approach to enhancing agricultural productivity by reducing reliance on chemical inputs. A total of 193 bacterial strains were isolated from the soybean rhizosphere using culture-dependent methods and high-throughput sequencing. Genetic diversity analysis via IS-PCR fingerprinting identified 19 representative strains, followed by 16S rRNA sequencing that delineated Bacillus, Rhizobium, and Paenibacillus as dominant genera. We chose Rhizobium subbaraonis TY15 on the basis of its dominant position and plant growth-promoting rhizobacteria characteristics. Functional screening highlighted strains exhibiting phosphate and potassium solubilization, plant growth-promoting traits (e.g., auxin production and enzyme synthesis

SUBMITTER: Huang M 

PROVIDER: S-EPMC12772353 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature