ACC4 — Cucumis melo

Summary

MELO3C010779.2, also known as CmACC4, CmACS11 or CmETO2, encodes a 1-aminocyclopropane-1-carboxylate synthase (EC 4.4.1.14), a pyridoxal phosphate-dependent enzyme. In melon, this gene is associated with sex determination and female flower development. It is linked to the regulation of ethylene biosynthetic process, negative regulation of ethylene biosynthetic process, response to organophosphorus, response to K+ ion, and cellular response to K+ ion starvation and nitrogen starvation. The encoded protein is associated with multiple cellular locations including the plant-type cell wall, plant-type vacuole, plastid, plasmalemma, and cytosol. CmACC4 is linked to a wide range of agronomic traits, including fruit ripening, fruit shape, yield, flowering time, leaf senescence, photosynthetic rate, root growth, lateral root number, and responses to bacterial disease, low temperature, and osmotic stress. Studies of related genes in other species link the family to female flower differentiation, unisexual flower development, and responses to ethylene, wounding, and iron deficiency.