Phosphate transporters in arbuscular mycorrhizal symbiosis

Maria J. Harrison, Nathan Pumplin, Florence J. Breuillin, Roslyn D. Noar, Hee Jin Park

Research output: Chapter in Book/Report/Conference proceedingChapter

14 Scopus citations


In the arbuscular mycorrhizal (AM) symbiosis the reciprocal exchange of nutrients results in a nutritional benefit for both symbionts. The fungus acquires carbon from plant and the plant obtains mineral nutrients from the fungus. While there is evidence for the transfer of phosphorus (P), nitrogen, zinc and copper, current data suggest that P is transferred in the highest quantities and that symbiotic P transfer occurs in the vast majority of AM symbioses. Symbiotic phosphate Pi transfer requires transport proteins to move Pi across the membranes of the AM fungus and plant. In recent years, there has been tremendous progress in the identification of plant and fungal Pi transporter proteins involved in symbiotic Pi transport. Coupled with the physiological data a greater understanding of symbiotic Pi transfer has emerged. Here we summarize the current data about Pi transporters and their expression patterns and roles in AM symbiosis.

Original languageEnglish (US)
Title of host publicationArbuscular Mycorrhizas
Subtitle of host publicationPhysiology and Function
PublisherSpringer Netherlands
Number of pages19
ISBN (Electronic)9789048194896
ISBN (Print)9789048194889
StatePublished - 2010


  • Legume
  • Periarbuscular membrane
  • Phosphate
  • Plasma membrane
  • Proton-coupled symport
  • Root
  • Symbiosis
  • Transporter

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