CAT — Cicer arietinum

Summary

LOC101513499, designated CaCAT and also known as CaCAT1, CaCAT2 or PCAT1, is a chickpea gene on chromosome 5 that encodes a catalase-family protein. The product possesses nucleoside diphosphate kinase activity, heme binding, protein kinase activity, and DNA-binding transcription factor activity, and is localised to the peroxisomal lumen, chloroplast envelope, tonoplast and apoplast. CaCAT is associated with the ascorbate-glutathione cycle, cellular respiration, polyamine and glutathione metabolism, and responses to boron and stimulus. The gene has been linked to numerous agronomic traits including grain yield per plant, seed moisture content, leaf chlorophyll content, net photosynthetic rate, seedling vigor, root and shoot dry weight, canopy temperature, chilling stress response, and hydrogen peroxide content. Associations with programmed cell death, oxidative stress tolerance, stomatal closure, seed germination, and reactive oxygen species homeostasis have also been reported. Studies of related genes in other species connect it to peroxisomal protein import, disease resistance, and organ size.