PRX — Brachypodium distachyon

Summary

BdPRX (BRADI_1G46622V3) in Brachypodium distachyon encodes a peroxiredoxin (EC 1.11.1.24) with thioredoxin peroxidase and antioxidant activity, belonging to the Peroxiredoxin_BCP/PrxQ and AhpC/TSA families. The gene is associated with cell redox homeostasis, cellular response to oxidative stress, and lignin anabolism, and its product localises to multiple chloroplast compartments including the thylakoid membrane, stroma, and envelope, as well as the cytosol. BdPRX is also linked to mRNA and protein binding, redox regulation, decreased cold stress response, and 16:1trans fatty acid biosynthesis. Studies of related genes in other species connect the family to spikelet number, grains per spike, spike length, salinity tolerance, heterosis, grain number, and photochemical quenching, as well as oxidative stress response and fatty acid desaturation.