AUR3 — Oryza sativa Japonica

Summary

OS05G0586200, also known as AUR3, JAR1, and several GH3 family designations, encodes a GH3 protein with IAA amido synthetase and JA-amino synthetase activities (EC 6.3.2.52). The gene is associated with jasmonic acid conjugation and metabolism, auxin homeostasis, and defense responses including broad-spectrum disease resistance and blast resistance in rice. It has been linked to drought tolerance, abscisic acid responses, mycorrhizal symbiosis, and seed, crown root, and root hair development. Associations also include plant growth hormone response, grain yield, tiller angle, panicle number, photoperiod sensitivity, and photosynthetic ability. The product localizes to the cytosol, chloroplast envelope, vacuole, mitochondria, and plasmodesmata, and is associated with regulation of hormone anabolism, camalexin biosynthesis, and jasmonic acid/ethylene-dependent systemic resistance.