DCE — Cucumis melo

Summary

MELO3C005222.2 (CmDCE) on melon chromosome 10 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 the GABA shunt, glutamate and sphingolipid breakdown, and responses to mechanical stimulus and nitric oxide storage. Its product localises to the ER, plastid, plasmodesma, mitochondria, cytosol, and nucleus. CmDCE is linked to shoot growth angle, ethylene and abscisic acid sensitivity, jasmonic acid content, photosynthetic rate, stomatal closure, root development, leaf senescence, seed growth, flowering time, and salt tolerance. Phenotypic associations include drought and heat stress tolerance, bacterial pathogen resistance, water-use efficiency, and GABA content. Studies of related genes in other species link the family to hypoxia response, phosphorus deprivation tolerance, and herbivory resistance.