AAT1 — Triticum turgidum subsp. durum

Summary

TRITD2BV1G193210 (symbol AAT1) on durum wheat chromosome 2B encodes a cationic amino acid transporter with basic amino acid permease activity, L-lysine and L-glutamate transmembrane transporter activity, and amino acid permease activity. It is associated with L-arginine import, basic amino acid transport, cellular amino acid homeostasis, H₂O₂ biosynthetic process, and response to nematodes. The protein localises to the nuclear envelope, tonoplast, plant-type vacuole, ER, mitochondria, plasmalemma, and cytoplasm. This gene is associated with leaf senescence, stomatal closure, drought tolerance, cold tolerance, senescence, oxidative stress tolerance, seed dormancy, salt tolerance, stomatal development, catalase activity, seed germination, hydrogen peroxide accumulation, circadian rhythm, peroxisome aggregation, programmed cell death, light response, hydrogen peroxide scavenging, reactive oxygen species homeostasis, light-responsive gene expression, circadian clock-regulated gene expression, jasmonic acid biosynthesis, susceptibility to necrotrophic pathogens, resistance to biotrophic pathogens, pathogen resistance, auxin accumulation, leaf amino acid concentration, hypersensitive response, amino acid concentration, seedling growth, and root growth. Studies of related genes in other species connect the family to vacuolar amino acid transport, photorespiratory stress tolerance, hypersensitive cell death, and abiotic stress responses.