ACC4 — Solanum lycopersicum

Summary

SlACC4 (SOLYC04G077410.4) on tomato chromosome 4 encodes a 1-aminocyclopropane-1-carboxylate synthase, a pyridoxal phosphate-dependent enzyme. The gene is associated with ethylene production and metabolism, as well as its negative regulation, and has been linked to fruit ripening, fruit firmness, fruit colour, fruit size, lycopene and carotenoid content, and yield traits. It is associated with heat stress response, hypoxia response, ozone sensitivity, oxidative stress response, and bacterial disease response, and with root growth, lateral root number, root hair length, and root hydrotropism. Additional associations include shoot system growth and development, leaf length, photosynthetic rate, stomatal complex closure time, sucrose content, anthocyanin content, and seed mucilage traits. Related genes in other species link the family to responses to ethylene, wounding, iron deficiency, and IAA.