DCE — Beta vulgaris subsp. vulgaris

Summary

BvDCE (BVRB_8G188810) on sugar beet chromosome 8 encodes a pyridoxal phosphate-dependent decarboxylase with glutamate decarboxylase and sphinganine-1-phosphate aldolase activities, and binds calmodulin, calcium ions, and pyridoxal phosphate. The gene is associated with glutamate and sphingolipid breakdown, GABA formation, and responses to mechanical stimuli and calcium ion detection. Its product localises to the ER membrane, plastid, plasmodesma, mitochondria, cytosol, and nucleus. BvDCE has been linked to shoot growth angle, photosynthetic rate, stomatal closure time, root development, leaf senescence, seed growth, flowering time, ethylene and abscisic acid sensitivity, and jasmonic acid content. Associations also include drought tolerance, heat stress tolerance, bacterial pathogen resistance, water-use efficiency, salt tolerance, and hypoxia-induced alanine accumulation. Studies of related genes in other species connect the family to GABA accumulation, fruit ripening, herbivory resistance, and phosphorus deprivation tolerance.