The KH-domain genes FLK and HOS5 integrate flowering and stress responses in Arabidopsis thaliana.

ABSTRACT: Plant reproductive success largely relies on flowering under favorable conditions. However, stress factors have forced plants to acquire adaptive strategies to coordinate floral timing and stress responses through key genetic regulators. RNA-binding proteins with K-homology (KH) domains are emerging as versatile regulators of an increasing number of plant developmental processes, including flowering and stress acclimation. In Arabidopsis thaliana, the KH-domain genes FLOWERING LOCUS K (FLK) and HIGH OSMOTIC STRESS GENE EXPRESSION 5 (HOS5) are associated with transcription and co-transcriptional operations. FLK facilitates floral transition by repressing FLOWERING LOCUS C (FLC), the central flowering inhibitor, while both KH-domain genes have been shown to be involved in abiotic stress and

SUBMITTER: Rodriguez-Cazorla E 

PROVIDER: S-EPMC12598764 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature