Exogenous MeJA modulates postharvest tomato aroma by suppressing JAs-ethylene signaling crosstalk.

ABSTRACT:

Background

Until recently, the mechanism underlying methyl jasmonate (MeJA)-mediated suppression of ethylene metabolism and its impact on quality formation in ripening tomatoes has not been fully clarified. This study aimed to investigate how exogenous MeJA application at the breaker stage affects endogenous jasmonates (JAs), ethylene production, metabolic pathways, and flavor profiles in 'FL 47' tomatoes.

Methods

Exogenous MeJA was applied to red 'FL 47' tomatoes at the breaker stage. We measured endogenous JAs (especially JA-Ile), ethylene production, enzyme activities (LOX, AOC, AOS, OPR, ACO, ACS), mRNA abundances of related genes (SlLOXD, SlAOC, SlAOS, SlOPR3, SlACO1, SlACS2, SlACS4, SlMYC2, SlMED25, SlET

SUBMITTER: Li X 

PROVIDER: S-EPMC12703787 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature