Phosphate-solubilizing Bacillus subtilis Y31 promotes cucumber growth and yield: insights from rhizosphere microbiomics and bacterial genomics.

ABSTRACT: Phosphate-solubilizing bacteria (PSB) play a vital role in sustainable agriculture by enhancing plant growth and improving crop yield. In intensive cucumber (Cucumis sativus L.) cultivation systems, soil degradation commonly occurs, making the optimization of phosphorus availability a key strategy for increasing production. However, studies examining the growth-promoting effects of PSB in cucumber remain limited. In this study, we isolated a novel PSB strain, Y31, from cucumber rhizosphere soil and identified it as Bacillus subtilis. Strain Y31 demonstrated the ability to solubilize calcium phytate and calcium phosphate, secrete multiple enzymes, produce siderophores, and exhibit antagonistic activity against pathogenic fungi. Inoculation with Y31 significantly promoted cucum

SUBMITTER: Fu Y 

PROVIDER: S-EPMC12835394 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature