Benzoxazinoids stimulate chemotaxis and act as a signaling molecule in <i>Azospirillum brasilense</i> Ab-V5, while showing minor effects on <i>Pseudomonas protegens</i> Pf-5.

ABSTRACT: Root colonization by plant growth-promoting bacteria (PGPB) involves recruiting beneficial partners from the rhizosphere. Among well-studied PGPB, Azospirillum brazilense Ab-V5 and Pseudomonas protegens Pf-5 are two well-known bacterial strains renowned for their growth-enhancing capacity and extensively used as bio-inputs. Many cereals, such as maize, produce indole-derived benzoxazinoids (BXs), specialized metabolites that shape root-associated microbiomes to promote colonization by plant-growth-promoting bacteria (PGPB). Although the mechanisms by which BXs recruit PGPB remain unclear, we hypothesize that BXs directly facilitate root colonization by favoring bacteria adapted to these metabolites in the soil environment. In this study, we investigated the impact of the rela

SUBMITTER: Baatsen J 

PROVIDER: S-EPMC12421955 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature