CAT1 — Oryza sativa Indica Group

Summary

BGIOSGA007252 (CAT1) in Indica rice encodes a catalase (EC 1.11.1.6) of the catalase clade 1/3 family, a haem-binding enzyme with additional annotated activities including S-nitrosylase, nucleoside diphosphate kinase, and histone acetyltransferase functions. The gene is associated with cellular oxidant detoxification, hydrogen peroxide biosynthesis, nitric oxide homeostasis, and responses to superoxide, xenobiotic stimuli, and oomycete molecules. It localises to the peroxisomal lumen, tonoplast, chloroplast envelope, and apoplast. CAT1 has been linked to numerous agronomic traits including seed yield, grain filling period, biomass yield, photosynthetic rate, root length, cadmium concentration, nitrate uptake, auxin sensitivity, low temperature stress response, disease tolerance, and stomatal closure time. Related genes in other species connect it to hypersensitive cell death, disease resistance, peroxisomal function, and stress responses.