CS1 — Oryza sativa Japonica

Summary

OsCS1 (OS08G0522400) in rice encodes a haem peroxidase with L-ascorbate peroxidase activity (EC 1.11.1.11), belonging to the Ccp1-like and haem peroxidase superfamily. The gene is associated with diverse biological processes including the ascorbate-glutathione cycle, cellular oxidant detoxification, chloroplast-nucleus signaling, and aerenchyma formation. It is linked to agronomically important traits such as plant growth, architecture, leaf morphology, height, seed and thousand kernel weight, as well as stress responses including salt, cold, blast disease, gall midge resistance, and abiotic stress tolerance. Localization evidence connects the product to chloroplast thylakoid and envelope, peroxisome membrane, and stress granules. Additional associations include amylopectin content, tiller angle, aluminum tolerance, bacterial blight resistance, and carotenoid content.