CS1 — Oryza sativa Japonica

Summary

OsCS1 (OS09G0538600) encodes a haem peroxidase with L-ascorbate peroxidase activity, belonging to the Ccp1-like and peroxidase_I families. The gene is associated with diverse biological processes including the ascorbate-glutathione cycle, cellular oxidant detoxification, chloroplast-nucleus signaling, aerenchyma formation, and serotonin metabolism. It is linked to numerous agronomically important traits such as plant growth, architecture, height, seed and thousand kernel weight, cold and salt stress tolerance, blast and bacterial blight disease resistance, gall midge resistance, aluminum tolerance, leaf relative water content, carotenoid content, and days to flowering. The encoded protein localizes to chloroplast thylakoid membranes, peroxisome membranes, and stress granules. Studies of related genes in other species link the family to heat, salt, and oxidative stress tolerance, as well as chloroplast retrograde signaling.