Ripening-induced defence signalling in Botrytis cinerea-infected tomato fruits involves activation of ERF.F4 by a MYC2-NOR/RIN protein complex.

ABSTRACT: Fleshy fruits are commercially and nutritionally important but become more susceptible to pathogens as they ripen. Active defence mechanisms continue to function in ripe fruits but they are influenced by ripening regulators and ripening outcomes. Botrytis cinerea is one of the most important fruit fungal pathogens of tomato and jasmonic acid (JA) is the major defence phytohormone involved in response to B. cinerea infection. Pathogens induce the accumulation of bioactive jasmonoyl-isoleucine (JA-Ile), which transmits defence signals through a hub transcription factor (TF) MYC2 that regulates defence responses. This has been clarified in depth in leaves, but how ripening, and in particular the regulators NOR and RIN influence JA-Ile-mediated defence responses remains unclear. In this articl

SUBMITTER: Li S 

PROVIDER: S-EPMC12392975 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature