POX — Sorghum bicolor

Summary

SORBI_3008G010500 (SbPOX) encodes a secretory haem peroxidase (EC 1.11.1.7) with lactoperoxidase and peroxidase activities, heme and metal binding, and protein phosphorylated amino acid binding. This sorghum gene on chromosome 8 is associated with activation of syringal lignin anabolism, lignin anabolism, H2O2 catabolic process, xylem development, response to oxidative stress, defense response, cellular response to hypoxia, nodulation, brassinosteroid-mediated signalling, and homeostasis. It localises to the apoplast, plant-type cell wall, plant-type vacuole, Golgi complex, extracellular region, mitochondria, and cytosol. The gene is linked to grain yield, photosynthetic rate, transpiration rate, stomatal resistance, chlorophyll content, carbohydrate content, proline content, nitrate uptake, root length, seedling growth and development trait, leaf composition trait, organ identity, and ethylene sensitivity. It has also been connected to resistance to Botrytis cinerea, disease resistance, photoperiod stress response, cell proliferation, leaf development, seedling growth, signal transduction, and nitrate assimilation.