ACC4 — Lactuca sativa

Summary

LsACC4, also known as ACC4, on chromosome 2 of garden lettuce (Lactuca sativa), encodes a protein with 1-aminocyclopropane-1-carboxylate synthase activity and transaminase activity, belonging to the aminotransferase family. The gene is associated with the regulation of ethylene biosynthetic processes, including negative regulation, and is linked to responses to organophosphorus, potassium ion starvation, and nitrogen starvation. It has been connected to traits such as yield, leaf length, root hair length, lateral root number, photosynthetic rate, flowering time, fruit ripening, and disease tolerance. Localisation evidence places the product in the plant-type cell wall, vacuole, plastid, plasmodesma, and cytosol. Studies of related genes in other species link the family to sex determination, fruit development, stress responses, and plant immunity.