ACC4 — Solanum lycopersicum

Summary

SlACC4 (SOLYC03G043890.3) on tomato chromosome 3 encodes a 1-aminocyclopropane-1-carboxylate synthase, a pyridoxal phosphate-dependent enzyme that catalyses the committed step in ethylene biosynthesis. The gene is associated with ethylene biosynthesis and signaling, the methionine salvage pathway, and hormone metabolism. SlACC4 has been linked to fruit ripening, fruit firmness, fruit color, fruit size, lycopene content, carotenoid content, anthocyanin content, yield, respiration rate, photosynthetic rate, and shoot system growth and development. It is also associated with heat stress response, hypoxia response, ozone sensitivity, oxidative stress response, and bacterial disease response, as well as root growth, lateral root number, root hair length, seed dormancy, and mucilage anabolism during seed coat development. The encoded protein localises to the cytosol, plastid, mitochondria, plasmalemma, and cell wall.