Priming of Plant Growth Promotion by Volatiles of Root-Associated Microbacterium spp.

ABSTRACT: Volatile compounds produced by plant-associated microorganisms represent a diverse resource to promote plant growth and health. Here, we investigated the effect of volatiles from root-associated Microbacterium species on plant growth and development. Volatiles of eight strains induced significant increases in shoot and root biomass of Arabidopsis but differed in their effects on root architecture. Microbacterium strain EC8 also enhanced root and shoot biomass of lettuce and tomato. Biomass increases were also observed for plants exposed only briefly to volatiles from EC8 prior to transplantation of the seedlings to soil. These results indicate that volatiles from EC8 can prime plants for growth promotion without direct and prolonged contact. We further showed that the

SUBMITTER: Cordovez V 

PROVIDER: S-EPMC6210106 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature