BADH — Oryza sativa Japonica

Summary

OsBADH (OS07G0688800) on rice chromosome 7 encodes an aldehyde dehydrogenase domain-containing protein with betaine-aldehyde dehydrogenase, succinate-semialdehyde dehydrogenase, and glyceraldehyde-3-phosphate dehydrogenase (NAD) activities, among other aldehyde dehydrogenase functions. The gene is associated with grain fragrance and aroma, particularly through the BADH2 variant, and has been linked to submergence tolerance, salt and drought tolerance, and stress responses. It is associated with glycine betaine anabolism, GABA catabolism, ethanol metabolism, and the GABA shunt, and localizes to mitochondria, vacuoles, chloroplast stroma, and the ER. Associations also include male reproductive development, tapetum degeneration, programmed cell death, and traits such as grain yield, plant height, stem diameter, and disease tolerance. Studies of related genes in other species link the family to glycine betaine synthesis, osmotic stress tolerance, and leaf polarity.