The ethylene response factor ERF1A regulates UV-C-induced delayed ripening in peach fruit.

ABSTRACT: Ultraviolet-C (UV-C) irradiation delays fruit ripening, yet the underlying mechanisms remain unclear. We investigated tissue-specific responses of peach fruit (Prunus persica L. Batsch) to UV-C by analyzing the peel and flesh separately. UV-C treatment altered central metabolism, promoted anthocyanin accumulation and coloration, and delayed ripening, as evidenced by reduced fruit softening and water loss. However, UV-C enhanced ethylene production and upregulated ethylene-related genes, indicating a reconfiguration of the ethylene response. Among UV-C-responsive genes, the APETALA2/Ethylene Response Factor (AP2/ERF) transcription factor family was most affected, with Ethylene Response Factor 1A (ERF1A) showing the strongest induction in the treated peel, suggesting its role as a key integr

SUBMITTER: Nasiopoulou E 

PROVIDER: S-EPMC12501976 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature