Rhizobacteria prime the activation of plant defense and nutritional responses to suppress aphid populations on barley over time.

ABSTRACT: Interactions between plants and soil microbes are widespread and are documented to modulate plant-insect herbivore interactions. Still, it remains unclear how these shape the overall plant defense responses and the mechanisms in suppressing insect populations. We performed bioassays and a time-series global gene expression analysis of barley (Hordeum vulgare) plants to study the underlying molecular pathways induced by two rhizobacteria, Acidovorax radicis or Bacillus subtilis, against Sitobion avenae aphids. Root inoculation by A. radicis or B. subtilis suppressed aphid populations on barley. Analysis of differentially expressed genes and co-expressed gene modules revealed a combination of rhizobacteria and aphid-induced plant responses. Aphid feeding triggered distinct plant responses in

SUBMITTER: Mbaluto CM 

PROVIDER: S-EPMC12329176 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature