PHT1 — Zea mays

Summary

ZM00001EB222510, designated PHT1 on maize chromosome 5, encodes a phosphate transporter protein belonging to the major facilitator superfamily with phosphate transmembrane transporter and symporter activity. The gene is associated with phosphorus acquisition efficiency and uptake, phosphate ion transport, phosphorus metabolism, and Pi homeostasis. It is linked to aerenchyma formation, floral organ senescence, auxin transport, regulation of root development, and cell wall modification, as well as hormone metabolism including ethene-mediated signaling and GA-signaling. Additional associations include nitrate assimilation, gluconeogenesis, sulfolipid anabolism, and secretion. The product localizes to the plasma membrane. PHT1 is linked to grain yield, biomass yield, plant height, stem diameter, culm diameter, root branching, root length, root hair length, lateral root length, root dry weight, leaf number, phosphate content, and tolerance to drought and salinity.