ACS1 — Lactuca sativa

Summary

LsACS1, located on chromosome 4 of garden lettuce (Lactuca sativa), encodes a 1-aminocyclopropane-1-carboxylate synthase and also exhibits transaminase, phosphatase, and protein kinase binding activities. The gene is associated with ethylene production, ACC accumulation, and responses to wounding, waterlogging, hypoxia, and iron deficiency. It is linked to traits including leaf length, vegetative vigor, seed yield, photosynthetic rate, stomatal resistance, anthocyanin content, root development, shoot branching, and responses to cold, jasmonic acid, and phosphate starvation. The encoded protein localizes to the cytosol, plastid, mitochondria, plasmalemma, and plasmodesmata. Studies of related genes in other species connect the ACS family to fruit ripening, flower sex determination, leaf senescence, and abiotic stress tolerance.