AUR3 — Oryza sativa Japonica

Summary

OS07G0592600 (AUR3, also known as GH3-8) encodes a member of the GH3 protein family with IAA amido synthetase and JA-amino synthetase activities, as well as adenylyltransferase activity. In rice, this gene is associated with defense responses, including broad-spectrum disease resistance and blast resistance, as well as tolerance to drought and abiotic stress. It has been linked to plant architecture traits such as tiller angle, branch angle, crown root development, root hair formation, and dwarfism. Associations with flower development, seed viability, grain yield, panicle number, and photosynthetic ability have also been observed. The gene is associated with jasmonic acid and auxin homeostasis, regulation of hormone biosynthesis, and responses to light stimuli, including far-red and red light sensitivity. Studies of related genes in other species link the GH3 family to auxin conjugation, pathogen defense, and shade avoidance.