Deciphering UV-C-induced transcriptomic shifts in tomato: defence mechanisms, stress responses, and photoreceptor regulation.

ABSTRACT:

Key message

This study reveals transcriptomic reprogramming in tomato under UV-C, highlighting enriched defence pathways, calcium signalling, enhanced pathogen tolerance, increased defence enzyme activity, and photoreceptor-mediated UV-C perception, linking light signalling to stress adaptation. UV-C radiation, when applied at hormetic dosage, acts as a mild abiotic stressor in plants, triggering beneficial responses that enhance yield and bioactive compound production. However, transcriptomic responses to UV-C remain underexplored. This study investigates UV-C-induced transcriptomic changes in two tomato cultivars with differing UV-C susceptibility; Red Rock (susceptible) and Super Star (comparatively tolerant). RNA-seq analysis revealed 3540 DEGs in Red Rock and 2678 in Super Sta

SUBMITTER: Wong GR 

PROVIDER: S-EPMC12454542 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature