VP — Daucus carota subsp. sativus

Summary

DCAR_025525 (VP, DcVP) on carrot chromosome 7 encodes a PPase-energised H-pump with proton-translocating pyrophosphatase activity (EC 7.1.3.1). The gene is associated with vacuolar and endomembrane localisation, proton transmembrane transport, and the establishment of electrochemical gradients. It has been linked to cell wall pectin metabolism, sucrose metabolism, auxin polar transport, starch biosynthesis regulation, cold acclimation, and responses to abscisic acid, salinity, and thirst. Associations with leaf length, biomass yield, stomatal opening, and low temperature stress response have been noted. Studies of related genes in other species connect the family to salt tolerance, drought resistance, phosphorus use efficiency, root biomass, and grain yield.