OBF4 — Zea mays

Summary

ZmOBF4 (also known as TGA4, BZIP64) encodes a bZIP transcription factor with a TGA domain that binds DNA, calmodulin, and salicylic acid, and exhibits disulfide oxidoreductase activity. It is associated with the regulation of defence responses to bacteria, systemic acquired resistance, and salicylic acid-mediated signalling, as well as stamen morphogenesis, petal development, meiotic cytokinesis, and seed dormancy. The gene is linked to traits including bacterial blight disease resistance, Cercospora leaf spot response, drought sensitivity, plant male sterility, seed set percent, shoot system elongation rate, and nitrogen and sulfur sensitivity. It localises to the nucleus, cytoplasm, and plasmalemma. Related genes in other species are linked to nitrogen use efficiency, drought resistance, anther development, and hybrid seed viability.