DCE — Daucus carota subsp. sativus

Summary

DCAR_002639 (DcDCE) on carrot chromosome 1 encodes a glutamate decarboxylase with pyridoxal phosphate-dependent decarboxylase domains, also annotated with sphinganine-1-phosphate aldolase activity, calmodulin binding, and calcium ion binding. The gene is associated with glutamate and sphingolipid breakdown, GABA formation, and responses to mechanical stimulus and calcium ion detection. It localises to multiple compartments including the ER, plastid, mitochondria, cytosol, and nucleus. DcDCE is associated with shoot growth angle, photosynthetic rate, stomatal closure, root development, leaf senescence, flowering time, and abscisic acid sensitivity. Phenotypic associations include drought tolerance, heat stress tolerance, bacterial pathogen resistance, water-use efficiency, and GABA content. Studies of related genes in other species connect the family to fruit ripening, herbivory resistance, and hypoxia response.