ATP6 — Sorghum bicolor

Summary

SORBI_3003G121100 (SbATP6) on sorghum chromosome 3 encodes a secretory peroxidase (EC 1.11.1.7) with haem-binding and lactoperoxidase activity. The gene is associated with cell wall polysaccharide breakdown, plant-type cell wall modification, hydrogen peroxide catabolism, lignin anabolism, anther wall tapetum development, response to oxidative stress, and response to other organisms. It is linked to seed coat mucilage extrusion, pollen development, male fertility, tapetal cell wall integrity, cell wall integrity, and cytoplasmic male sterility. The encoded peroxidase localises to the vacuole, plant-type cell wall, and extracellular space. Associations with photosynthetic rate and peroxidase-71 content have also been noted. Related genes in other species link the family to lignin biosynthesis and secondary cell wall thickness, as well as cold stress and root, shoot, flower, and pollen development.