ASD — Oryza sativa Japonica

Summary

OsASD (OS07G0664000) on rice chromosome 7 encodes a short-chain dehydrogenase/reductase (SDR) family protein with NAD(P)-binding domain, exhibiting zerumbone synthase, momilactone-A synthase, (+)-borneol dehydrogenase, xanthoxin dehydrogenase, and aldo-keto reductase activities. The gene is associated with abscisic acid and gibberellin biosynthesis, terpenoid and monoterpenoid anabolism, ethanol fermentation, aerobic respiration, and responses to flooding and salt stress. It is linked to pre-harvest sprouting, seed dormancy, vivipary, germination rate, hull and pericarp color, seed shattering, stem elongation, plant height, grain yield, and salinity tolerance. The protein localizes to mitochondria and cytosol. Studies of related genes in other species connect the SDR family to similar oxidoreductase functions.