AMT1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.4HG0389730 (HvAMT1) on barley chromosome 4H encodes an anthranilate synthase, an enzyme with aminodeoxychorismate synthase and anthranilate synthase activity (EC 4.1.3.27). The gene is associated with tryptophan and auxin biosynthesis, the shikimate pathway, folate biosynthesis, and secondary metabolism. It is linked to regulation of auxin biosynthesis, stomatal opening, sporulation, virus-induced PTGS, and responses to ethylene, wounding, and bacteria. The protein localises to the chloroplast stroma, cytoplasm, and nucleus as part of the anthranilate synthase complex. Associations with adventitious rootless and lateral root formation, ammonium uptake, sulfur nutrition response, and panicle traits have been observed. Studies of related genes in other species link the family to defense response, phytoalexin biosynthesis, primary root elongation, tryptophan content, and grain yield.