CAT3 — Cucumis sativus

Summary

CsCAT3 (CSA_6G356990) on cucumber chromosome 6 encodes a catalase (EC 1.11.1.6) with a catalase haem-binding site and core domain, and is also annotated with S-nitrosylase, nucleoside diphosphate kinase, histone acetyltransferase, and protein kinase activities. The gene is associated with peroxisomal lumen, tonoplast, chloroplast envelope, and apoplast localisation. It is linked to the xanthophyll cycle, proline breakdown, pinene breakdown, and phosphatidic acid anabolism, as well as traits including leaf dry weight, percent germination, hydrogen peroxide content, leaf chlorophyll content, seedling vigor, biomass yield, seed yield, and nitrogen content. Phenotype associations include stomatal closure, leaf senescence, oxidative stress tolerance, hydrogen peroxide accumulation, circadian clock-regulated gene expression, photorespiratory hydrogen peroxide elimination, and cold stress tolerance. Related genes in other species link the family to drought tolerance, salt tolerance, and hypersensitive cell death.