CSD1 — Zea mays

Summary

ZM00001EB039000 (ZmCSD1) on maize chromosome 1 encodes a copper/zinc superoxide dismutase (SOD) family protein with copper binding and superoxide dismutase activity (EC 1.15.1.1). The gene is associated with oxygen metabolism, removal of superoxide radicals, and cellular responses to ozone, high light intensity, UV-B, copper, and sucrose stimulus. It is linked to pigment accumulation, lipid A metabolism, and oxidative phosphorylation. ZmCSD1 has been connected to agronomically important traits including grain yield, grain number, ear length, plant height, seedling height, harvest index, root length, germination rate, leaf chlorophyll content, net photosynthetic rate, transpiration rate, and stomatal resistance. It is also associated with tolerance to drought, salt, high light, oxidative stress, cadmium, arsenic, copper, and heat, as well as bacterial blight disease resistance. The protein localizes to the thylakoid, chloroplast stroma, apoplast, cytosol, and plasmalemma.