DCE — Daucus carota subsp. sativus

Summary

DCAR_010207 (DcDCE) on carrot chromosome 3 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 nitrogen starvation, calcium ion detection, and mechanical stimuli. Its product localises to the ER membrane, plastid, plasmodesma, mitochondria, cytosol, and nucleus. DcDCE is linked to shoot growth angle, ethylene sensitivity, jasmonic acid content, photosynthetic rate, stomatal closure, root development, leaf senescence, seed growth, flowering time, abscisic acid sensitivity, and salt tolerance. Studies of related genes in other species connect the family to GABA accumulation, hypoxia response, fruit ripening, bacterial wilt resistance, and stress tolerance.