C4H — Cucumis melo

Summary

MELO3C020483.2 (CmC4H) on melon chromosome 13 encodes a trans-cinnamate 4-monooxygenase (EC 1.14.14.91), a cytochrome P450 family protein with heme and iron binding. This gene is associated with phenylpropanoid, lignin, flavonoid and ubiquinone metabolism, and with naringenin chalcone accumulation. It is linked to fruit and pollen development, wound and light responses, and detoxification. The encoded protein localises to the endoplasmic reticulum, plasma membrane, nucleus, Golgi, vacuole, cell wall and plasmodesmata. Associations with lignin deposition, male fertility, plant growth, Casparian strip formation, auxin transport, and adventitious and lateral root development have been reported. Studies of related genes in other species connect them to lignification, dwarfism, altered phenylpropanoid metabolism, male sterility and abiotic stress adaptation.