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Updated: May 21, 2026

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Published on: December 10, 2018
Phosphate Import in Plants: Focus on the PHT1 Transporters
Laurent Nussaume1, Satomi Kanno, Hélène Javot
1IBEB-SBVME Laboratoire de Biologie du Développement des Plantes, UMR6191 CNRS-Commissariat à l'Energie Atomique et aux Energies Alternatives Cadarache, Université Aix-Marseille, F-13108 Saint-Paul-lez-Durance France.
Abstract:
The main source of phosphorus for plants is inorganic phosphate (Pi), which is characterized by its poor availability and low mobility. Uptake of this element from the soil relies heavily upon the PHT1 transporters, a specific family of plant plasma membrane proteins that were identified by homology with the yeast PHO84 Pi transporter. Since the discovery of PHT1 transporters in 1996, various studies have revealed that their function is controlled by a highly complex network of regulation. This review will summarize the current state of research on plant PHT1 multigenic families, including physiological, biochemical, molecular, cellular, and genetics studies.
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