BADH — Oryza sativa Japonica

Summary

OsBADH (OS01G0591300) on rice chromosome 1 encodes an aldehyde dehydrogenase family protein with oxidoreductase activity acting on aldehyde or oxo groups of donors, utilizing NAD or NADP as acceptors. The gene is associated with grain fragrance and aroma, particularly through the BADH2 variant, and has been linked to submergence tolerance, salt and drought stress responses, and male reproductive development including tapetum degeneration and programmed cell death. It is associated with glycine betaine and GABA metabolism, ethanol metabolism, and cellular detoxification of aldehydes. The protein localizes to mitochondria, vacuoles, chloroplast stroma, and the ER. Associations also extend to grain yield, plant height, root morphology, disease tolerance, and photosynthetic rate, with studies of related genes in other species linking the family to stress tolerance and glycine betaine synthesis.