Integration of two herbivore-induced plant volatiles results in synergistic effects on plant defence and resistance.

ABSTRACT: Plants can use induced volatiles to detect herbivore- and pathogen-attacked neighbors and prime their defenses. Several individual volatile priming cues have been identified, but whether plants are able to integrate multiple cues from stress-related volatile blends remains poorly understood. Here, we investigated how maize plants respond to two herbivore-induced volatile priming cues with complementary information content, the green leaf volatile (Z)-3-hexenyl acetate (HAC) and the aromatic volatile indole. In the absence of herbivory, HAC directly induced defence gene expression, whereas indole had no effect. Upon induction by simulated herbivory, both volatiles increased jasmonate signalling, defence gene expression, and defensive secondary metabolite production and increased plant resis

SUBMITTER: Hu L 

PROVIDER: S-EPMC6392123 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature