Plant-to-plant defence induction in cotton is mediated by delayed release of volatiles upon herbivory.

ABSTRACT: Caterpillar feeding immediately triggers the release of volatile compounds stored in the leaves of cotton plants. Additionally, after 1 d of herbivory, the leaves release other newly synthesised volatiles. We investigated whether these volatiles affect chemical defences in neighbouring plants and whether such temporal shifts in emissions matter for signalling between plants. Undamaged receiver plants were exposed to volatiles from plants infested with Spodoptera caterpillars. For receiver plants, we measured changes in defence-related traits such as volatile emissions, secondary metabolites, phytohormones, gene expression, and caterpillar feeding preference. Then, we compared the effects of volatiles emitted before and after 24 h of damage on neighbouring plant defences. Genes that were up

SUBMITTER: Grandi L 

PROVIDER: S-EPMC11579441 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature