LOX — Beta vulgaris subsp. vulgaris

Summary

BvLOX (BVRB_4G072070) on sugar beet chromosome 4 encodes a lipoxygenase enzyme with linoleate 13S-lipoxygenase activity, also annotated for phytoene dehydrogenase, peroxidase, and salicylic acid binding activities. The protein localises to chloroplast thylakoids, stromules, and stress granules. BvLOX is associated with jasmonic acid and oxylipin biosynthesis, green leaf volatile production, lipid oxidation, and responses to herbivores, insects, ozone, high light, and viruses. It is linked to photoperiod-sensitive flowering time, seed yield, photosynthetic rate, root thickness, and low temperature stress response. The gene is associated with wound response, cadmium and heat stress tolerance, drought resistance, herbivore defence, anther development, and nitrogen use efficiency. Related genes in other species link the family to jasmonate signalling, leaf senescence, resistance to fungal pathogens and herbivory, and green leaf volatile biosynthesis.