Laminarin-triggered defence responses are geographically dependent in natural populations of Solanum chilense.

ABSTRACT: Natural plant populations are polymorphic and show intraspecific variation in resistance properties against pathogens. The activation of the underlying defence responses can depend on variation in perception of pathogen-associated molecular patterns or elicitors. To dissect such variation, we evaluated the responses induced by laminarin (a glucan, representing an elicitor from oomycetes) in the wild tomato species Solanum chilense and correlated this to observed infection frequencies of Phytophthora infestans. We measured reactive oxygen species burst and levels of diverse phytohormones upon elicitation in 83 plants originating from nine populations. We found high diversity in basal and elicitor-induced levels of each component. Further we generated linear models to explain the observed in

SUBMITTER: Kahlon PS 

PROVIDER: S-EPMC10199122 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature