F3H — Cucumis sativus

Summary

CsF3H (CSA_6G108510) on cucumber chromosome 6 encodes a flavanone 3-dioxygenase (EC 1.14.11.9) with flavone synthase, flavonol synthase and chalcone isomerase activities, belonging to the Fe2OG-dioxygenase superfamily. The gene is associated with regulation of flavonoid and anthocyanin biosynthesis, secondary metabolism, lignin and coumarin anabolism, cuticle biosynthesis, organogenesis, stomatal closure, response to UV and hormones, and DNA replication licensing. It is linked to fruit color, anthocyanin and flavonoid content, carotenoid content, plant height, quantum yield, photochemical quenching, and oxidative stress response. Associations include powdery mildew resistance, pollen thermotolerance and viability, cold acclimation, root and stamen morphology, root phototropism, and circadian clock regulation. The protein localises to the cytosol, nucleus, ER and tonoplast.