SlERF.D2-mediated antagonism between ethylene and ABA signaling pathways modulates osmotic stress adaptation in tomato.

ABSTRACT: Ethylene response factors (ERFs) are pivotal regulators in mediating plant stress adaptation; however, the roles of osmotic stress-responsive ERFs in tomato remain poorly characterized. Here, we comprehensively investigate the function of SlERF.D2, a member of the ERF transcription factor family, in modulating osmotic stress adaptation. Expression profiling indicated that SlERF.D2 responded to diverse abiotic stimuli, such as drought and salt, as well as ethylene and abscisic acid (ABA). Combined physiological and metabolomic analyses of SlERF.D2 overexpression and knockout lines revealed a negative regulatory role of SlERF.D2 in tomato's osmotic stress adaptation. Biochemical and molecular assays further revealed that SlERF.D2 directly targets the promoter of SlPP2C1,

SUBMITTER: Li N 

PROVIDER: S-EPMC12861479 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature