CSD1 — Oryza sativa Japonica

Summary

OS08G0561700, also known as CSD1, CSD2, or CSD3 in rice, encodes a copper-zinc superoxide dismutase (Cu/Zn SOD) characterized by a SOD_Cu_Zn domain and annotated with superoxide dismutase activity (EC 1.15.1.1). The gene is associated with responses to multiple abiotic stresses, including salt, drought, aluminum, oxidative stress, high light, UV-B, and ozone, as well as tolerance to these conditions. It has been linked to traits such as seedling vigor, grain yield, spikelet fertility, seed longevity, photosynthetic rate, heat tolerance, and bacterial blight disease resistance. The encoded protein localizes to the thylakoid, chloroplast stroma, apoplast, cytosol, and plasmalemma, and is associated with processes including hydrogen peroxide biosynthesis, superoxide removal, copper and iron responses, and gibberellin biosynthesis. Studies of related genes in other species connect the Cu/Zn SOD family to defense responses and fungal pathogen immunity.