AUR3 — Sorghum bicolor

Summary

SORBI_3002G361500 (SbAUR3) on sorghum chromosome 2 encodes an indole-3-acetic acid-amido synthetase of the GH3 family, with IAA amido synthetase, jasmonate-amino synthetase, and adenylyltransferase activities. The gene is associated with cellular auxin homeostasis, jasmonic acid metabolism, and regulation of defence response to bacteria, as well as activation of camalexin anabolism and induced systemic resistance. It is linked to the stay green trait, grain yield, photoperiod-sensitive flowering time, photosynthetic ability, panicle number, branch angle, and root architecture. Additional associations include responses to red, far-red, blue, and UV-B light, viral disease, insect damage, and abiotic stresses such as salinity and arsenic. The product localises to the cytosol, plasmalemma, chloroplast envelope, vacuole, mitochondria, and nuclear ubiquitin ligase complexes.