Root branching responses to phosphate and nitrate

Curr Opin Plant Biol. 2008 Feb;11(1):82-7. doi: 10.1016/j.pbi.2007.10.003. Epub 2007 Nov 19.


Plant roots favour colonization of nutrient-rich zones in soil. Molecular genetic evidences demonstrate that roots sense and respond to local and global concentrations of inorganic phosphate and nitrate, in a fashion that depends on the shoot nutrient status. Recent investigations in Arabidopsis highlighted the role of the root tip in phosphate sensing and attributed to already known proteins (multicopper oxidases and nitrate transporters) new and unexpected functions in the root growth response to phosphate or nitrate.

Publication types

  • Review

MeSH terms

  • Arabidopsis / drug effects*
  • Arabidopsis / growth & development
  • Arabidopsis / metabolism
  • Nitrates / pharmacology*
  • Phosphates / pharmacology*
  • Plant Roots / drug effects*
  • Plant Roots / growth & development
  • Plant Roots / metabolism
  • Reactive Oxygen Species / metabolism
  • Signal Transduction / drug effects


  • Nitrates
  • Phosphates
  • Reactive Oxygen Species