CS1 — Oryza sativa Japonica

Summary

OsCS1 (OS04G0223300) on rice chromosome 4 encodes a haem peroxidase of the Ccp1-like family with L-ascorbate peroxidase activity (EC 1.11.1.11). The gene is associated with chloroplast function, plant growth, shoot architecture, leaf development, plant height, and seed traits including thousand kernel weight. It has been linked to responses to salt, cold, and abiotic stress, as well as blast resistance, gall midge resistance, and immunity against Magnaporthe oryzae. Associations also include phytohormone homeostasis, salicylic acid response, transcriptional regulation, and zinc homeostasis. The product localises to the peroxisome membrane, chloroplast outer membrane, thylakoid, and stress granules. Additional associations include serotonin and phytochelatin metabolism, the ascorbate-glutathione cycle, aerenchyma formation, and positive regulation of stomatal complex development.