CAT — Pisum sativum

Summary

PSAT0S498G0080, symbol CAT and also known as PCAT1, encodes a catalase enzyme (EC 1.11.1.6) with heme binding and metal binding activities, belonging to the catalase core and clade1/3 families. In garden pea, this gene is associated with oxygen metabolism, cellular oxidant detoxification, response to hydrogen peroxide and superoxide, and cellular respiration. It is linked to peroxisomal lumen localisation and protein-peroxisome targeting. The gene has been connected to numerous agronomically important traits including seed yield, seed weight, biomass yield, forage yield, seedling vigor, germination rate, photosynthetic rate, water use efficiency, and responses to both biotic and abiotic stress. Associations also include plant growth, stomatal closure, oxidative stress tolerance, and chloroplast development. Studies of related genes in other species link the catalase family to disease resistance, peroxisomal function, and organ size.