AT4G25100 — Arabidopsis thaliana

Summary

AT4G25100, also known as FSD1, encodes an iron superoxide dismutase in Arabidopsis thaliana, a member of the Mn/Fe superoxide dismutase family. The enzyme is localized to the chloroplast, including the thylakoid, envelope, stroma, and nucleoid, as well as the mitochondria and apoplast. FSD1 is associated with superoxide radical removal, reactive oxygen species homeostasis, and the ascorbate-glutathione cycle. It has been linked to responses to photooxidative stress, copper deficiency, and heat stress. The gene is connected to numerous agronomic traits, including seed yield, biomass yield, leaf elongation rate, root number, and quantum yield. FSD1 is also associated with the regulation of starch metabolism, iron transport, and gene silencing by miRNA. Studies of related genes in other species link the family to traits such as cob diameter, leaf moisture content, and osmotic adjustment capacity.