CAT1 — Triticum turgidum subsp. durum

Summary

TRITD6BV1G012280 (CAT1) on durum wheat chromosome 6B encodes a catalase core domain-containing protein with EC 1.11.1.6 activity. It is associated with cellular oxidant detoxification, hydrogen peroxide and superoxide responses, nitric oxide homeostasis, and S-transnitrosylation. The gene is linked to peroxisomal lumen localisation and protein-peroxisome targeting. Associations include grain filling period, reproductive period, seed yield, biomass yield, photosynthetic rate, leaf chlorosis, chloroplast development, stomatal closure, and responses to abiotic stress, low temperature, and disease tolerance. It is also connected to auxin sensitivity, nitrate uptake, root thickness, and plant growth and development traits. Studies of related genes in other species link the family to catalase activity, stress responses, disease resistance, and peroxisomal function.