CS1 — Sorghum bicolor

Summary

SbCS1 (SORBI_3002G431100) on sorghum chromosome 2 encodes a haem peroxidase of the Ccp1-like family with L-ascorbate peroxidase activity (EC 1.11.1.11). The gene is associated with cellular oxidant detoxification, hydrogen peroxide-mediated signaling, and cellular water homeostasis. It is linked to water use efficiency, photosynthetic rate, stomatal resistance, bacterial blight disease resistance, seed viability, flowering time, leaf senescence, and responses to low temperature, aphids, and viral disease. The encoded protein localises to chloroplast thylakoid membranes, peroxisome membranes, and stress granules. Studies of related genes in other species connect the family to drought stress tolerance, high light stress tolerance, thermotolerance, cold stress memory, and pathogen resistance.