WRKY3 — Oryza sativa Japonica

Summary

Rice WRKY3 (Os09g0417800, also known as WRKY62, WRKY71, and WRKY76) encodes a WRKY domain-containing transcription factor with DNA-binding, transcription factor activity, and protein dimerization activity. It is associated with magnesium chelatase activity and localizes to the nucleus, chloroplast inner membrane, and cytoplasm. In rice, this gene family has been linked to drought tolerance, cold tolerance, blast disease resistance, osmotic stress tolerance, and responses to jasmonic acid, salicylic acid, and abscisic acid. It is also associated with regulation of auxin biosynthesis, gibberellin metabolism, anthocyanin metabolism, photosynthesis, thermomorphogenesis, and nuclear import/export. Additional associations include submergence tolerance, seedling growth traits, leaf area, stem thickness, flavonoid content, phosphorus uptake, and responses to light, temperature, and water stress. Studies of related genes in other species connect the family to defense signaling, thermotolerance, phototropism, and root development.