DLO1 — Beta vulgaris subsp. vulgaris

Summary

BvDLO1 (BVRB_3G050970) on sugar beet chromosome 3 encodes a 2-oxoglutarate-dependent dioxygenase with salicylate 5-hydroxylase, flavone synthase, and flavanone 3-dioxygenase activities. The gene is associated with salicylic acid breakdown, anthocyanin and flavonoid anabolism, coumarin anabolism, and defence responses to oomycetes, fungi, and bacteria. It has been linked to disease resistance and susceptibility to downy mildew, Phytophthora capsici, and Pseudomonas syringae, as well as to drought tolerance, oxidative stress response, leaf senescence, and plant growth. The protein localises to the cytoplasm, nucleus, and chloroplast. Studies of related genes in other species connect the family to flavone biosynthesis and salicylic acid regulation, as well as to downy mildew resistance and late blight resistance.