AAT1 — Nicotiana attenuata

Summary

A4A49_32424 (AAT1/CAT1) in Nicotiana attenuata encodes a basic amino acid permease with L-lysine, L-glutamate and basic amino acid transmembrane transporter activity, localised to the membrane, plant-type vacuole, mitochondria and cytoplasm. The gene is associated with basic amino acid transport, L-arginine import, cellular homeostasis, detoxification, ethylene anabolism, auxin signalling, fruit development and response to aluminium. It is linked to quantum yield, net photosynthetic rate, transpiration rate, stomatal resistance and photochemical quenching, as well as to plant biomass, flowering time and resistance to Pseudomonas syringae. Studies of related genes in other species link the family to salt, drought, oxidative and high-light stress tolerance, viral and pathogen resistance, fruit ripening, volatile ester production and fruit flavour.