AAT1 — Capsicum annuum

Summary

CaAAT1 (T459_05144) on pepper chromosome 2 encodes a cationic amino acid transporter 1, a member of the CAT_C and AA/rel_permease1 families, with L-lysine, L-glutamate, basic amino acid and general amino acid permease activity. This gene is associated with L-arginine import, basic amino acid transport, fruit development and ripening, response to wounding and aluminum, and localises to the plasma membrane, vacuole, mitochondria, cytoplasm and intracellular membrane-bounded organelles. CaAAT1 is linked to cell membrane stability, shoot fresh weight, photosynthetic rate and chlorophyll content, as well as amino acid transport, plant biomass, flowering time, glutamine transport and resistance to Pseudomonas syringae. Studies of related genes in other species connect the family to fruit flavour, volatile ester production, salt, drought, oxidative and high-light stress tolerance, viral and pathogen resistance, and root and shoot growth traits.