ASD — Sorghum bicolor

Summary

SORBI_3001G042000 (SbASD) encodes a short-chain dehydrogenase/reductase (SDR) family protein with NAD(P)-binding domain, annotated with multiple oxidoreductase activities including xanthoxin dehydrogenase, 2,4-dienoyl-CoA reductase, and zerumbone synthase activity. The gene is associated with abscisic acid (ABA) biosynthesis and homeostasis, as well as responses to drought, heat, wounding, UV, jasmonic acid, and fructose. It has been linked to traits including sprouting tolerance, drought tolerance, and ethylene sensitivity, and to phenotypes such as seed dormancy, seed germination, seed size, stomatal closure, root gravitropic response, anthocyanin accumulation, and sugar signaling. The encoded protein localizes to the cytosol, nucleus, mitochondria, and stress granules. Studies of related genes in other species connect the family to ABA and gibberellin biosynthesis, salt and osmotic stress tolerance, disease resistance, and seed development.