ASD — Oryza sativa Indica Group

Summary

BGIOSGA029655, also known as ASD in Indica rice, encodes an uncharacterized protein belonging to the short-chain dehydrogenase/reductase (SDR) family with an ABA2-like domain. The enzyme exhibits multiple oxidoreductase activities, including momilactone-A synthase, secoisolariciresinol dehydrogenase, (+)-borneol dehydrogenase, and xanthoxin dehydrogenase (NAD+) activities, as well as general aldo-keto reductase and NAD(P)-dependent CH-OH oxidoreductase activity. This gene is associated with abscisic acid, monoterpenoid, lignan, terpenoid, and phenylpropanoid biosynthesis, along with responses to UV, jasmonic acid, and wounding, and involvement in the MAPK cascade and seed maturation. It is localized to both mitochondria and cytosol. ASD is associated with submergence tolerance, seed dormancy, plant height, and grain yield. Studies of related genes in other species link the family to alcohol dehydrogenase and tropinone reductase-like activities.