ATF1 — Cucumis melo

Summary

MELO3C028936.2, designated CmATF1, encodes a thioredoxin-like protein with protein-disulfide reductase, peroxidase, and enzyme activator/inhibitor activities, and binds salicylic acid. In melon, this gene is associated with cell redox homeostasis, regulation of carbohydrate metabolism, and responses to cold and light intensity. The protein localizes to chloroplast thylakoids, stroma, envelope, and stromules, as well as the apoplast and cytosol. CmATF1 is associated with plant growth, photosynthetic electron transport rate, photosynthesis, antioxidant response, altered redox behavior under high light/dark conditions, and reduced fresh weight and photosynthetic pigment content. Related genes in other species link the thioredoxin f family to carbon dioxide fixation, photosynthetic efficiency, growth, and herbicide resistance.