COMT — Beta vulgaris subsp. vulgaris

Summary

BvCOMT (BVRB_1G002000) on sugar beet chromosome 1 encodes a protein with caffeate O-methyltransferase activity and SAM-dependent methyltransferase activity, also annotated for xanthotoxol O-methyltransferase, flavone 3′-O-methyltransferase, quercetin 3-O-methyltransferase, acetylserotonin O-methyltransferase and myricetin 3′-O-methyltransferase activities. The gene is associated with lignin, coumarin, flavonol, indole glucosinolate, alkaloid and melatonin biosynthesis, as well as serotonin metabolism, regulation of anthocyanin metabolism, response to UV, freezing and mannitol, phloem transport, and seed oilbody biogenesis. It has been linked to leaf vein morphology, viral disease response, photosynthetic rate, cell growth and development traits, and phenotypes including callus formation, guaiacol production, nematode resistance, and premature senescence. The protein localises to the nucleus, cytosol, plastid, plasmalemma, plasmodesma, plant-type cell wall and stress granules.