AUR3 — Oryza sativa Japonica

Summary

Rice gene OS01G0764800, symbol AUR3 and also known as GH3-2, encodes a GH3 family protein with IAA amido synthetase and JA-amino synthetase activities, and adenylyltransferase activity (EC 6.3.2.-). In rice, this gene is associated with defense responses, broad-spectrum disease resistance, drought tolerance, and mycorrhizal symbiosis. It is linked to seed development, crown root and root hair formation, dwarfism, and abscisic acid and jasmonic acid signaling. The encoded protein localizes to multiple cellular compartments including the cytosol, chloroplast envelope, vacuole, and plasmodesmata. AUR3 is associated with regulation of hormone anabolism, cellular auxin homeostasis, jasmonic acid metabolism, and camalexin anabolism. Associations with agronomic traits include grain yield, panicle number, tiller angle, far red light sensitivity, blue light sensitivity, and photosynthetic ability.