Enhancement of Pathogen Resistance in Common Bean Plants by Inoculation With Rhizobium etli.

ABSTRACT: Symbiotic Rhizobium-legume associations are mediated by exchange of chemical signals that eventually result in the development of a nitrogen-fixing nodule. Such signal interactions are thought to be at the center of the plants' capacity either to activate a defense response or to suppress the defense response to allow colonization by symbiotic bacteria. In addition, the colonization of plant roots by rhizobacteria activates an induced condition of improved defensive capacity in plants known as induced systemic resistance, based on "defense priming," which protects unexposed plant tissues from biotic stress.Here, we demonstrate that inoculation of common bean plants with Rhizobium etli resulted in a robust resistance against Pseudomonas syringae pv. phaseolicola. Indeed, inoculation with R.

SUBMITTER: Diaz-Valle A 

PROVIDER: S-EPMC6818378 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature