GSA — Triticum turgidum subsp. durum

Summary

TRITD7AV1G103490 (symbol TtGSA) on durum wheat chromosome 7A encodes glutamate-1-semialdehyde 2,1-aminomutase (EC 5.4.3.8), a pyridoxal-phosphate-dependent enzyme. This gene is associated with tetrapyrrole and chlorophyll biosynthesis, porphyrin-containing compound biosynthesis, and biotin, arginine, and alkaloid anabolism. It has been linked to responses to flooding, oxidative stress, jasmonic acid, and brassinosteroids, as well as phloem transport, leaf vascular tissue pattern formation, and regeneration. The encoded protein localizes to chloroplasts, mitochondria, plastids, the cytosol, and the apoplast. Associations with leaf vein morphology, chlorophyll content, shoot development, premature senescence, and leaf cell death have been noted. Related genes in other species link the family to chlorophyll biosynthesis and plant growth.