CS1 — Oryza sativa Japonica

Summary

OsCS1 (OS03G0285700) encodes a haem peroxidase of the Ccp1-like family with L-ascorbate peroxidase activity (EC 1.11.1.11). The gene is associated with diverse biological processes including the ascorbate-glutathione cycle, cellular oxidant detoxification, chloroplast-nucleus signaling, aerenchyma formation, and serotonin and phytochelatin metabolism. It has been linked to traits such as plant growth, architecture, leaf morphology, height, seed viability, thousand kernel weight, tiller angle, amylopectin content, and carotenoid content. Associations with stress responses include salt, cold, drought, aluminum toxicity, bacterial blight, blast, and gall midge resistance, as well as responses to abscisic acid, jasmonic acid, and salicylic acid. The product localizes to chloroplast thylakoid and envelope, peroxisome membrane, and stress granules. Studies of related genes in other species link the family to salt, heat, and oxidative stress tolerance.