CAT1 — Nicotiana attenuata

Summary

A4A49_25845 (CAT1) in coyote tobacco (Nicotiana attenuata) encodes a catalase enzyme (EC 1.11.1.6) with a haem-binding domain, and is also annotated with nucleoside diphosphate kinase activity, protein kinase activity, and DNA-binding transcription factor activity. CAT1 is associated with cellular responses to hydrogen peroxide, superoxide, and sulfate or nitrogen starvation, as well as aerenchyma formation, photoperiodism, systemic acquired resistance via salicylic acid signaling, and regulation of programmed cell death. The gene is linked to traits including biomass yield, seed yield, net photosynthetic rate, quantum yield, transpiration rate, stomatal resistance, leaf chlorosis, root thickness, oxidative stress response, and disease tolerance. Related genes in other species are linked to drought tolerance, salt tolerance, oxidative stress tolerance, and hypersensitive cell death.