Functional characterization of a novel plant growth-promoting rhizobacterium enhancing root growth and salt stress tolerance.

ABSTRACT: Plant growth-promoting rhizobacteria (PGPR) are soil microorganisms through which phytohormones and other bioactive compounds are produced, thereby enhancing plant growth and stress tolerance. In this study, a novel PGPR strain was identified from the rhizosphere of Lycium chinense seedlings, which produce protein-rich fruit. Whole-genome sequencing and annotation revealed that the genome of this strain, designated Pseudomonas sp. A-2, consists of a 6.65-Mb circular chromosome with 5,980 predicted protein-coding sequences. Comparative genomic analysis classified the strain within the genus Pseudomonas. The A-2 strain genome encodes proteins involved in indole-3-acetic acid (IAA) biosynthesis and signaling pathways, which was validated through IAA detection assays and quantitative analyses.

SUBMITTER: Lee S 

PROVIDER: S-EPMC12365279 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature