Nature Communications (May 2017)

Low phosphate activates STOP1-ALMT1 to rapidly inhibit root cell elongation

  • Coline Balzergue,
  • Thibault Dartevelle,
  • Christian Godon,
  • Edith Laugier,
  • Claudia Meisrimler,
  • Jean-Marie Teulon,
  • Audrey Creff,
  • Marie Bissler,
  • Corinne Brouchoud,
  • Agnès Hagège,
  • Jens Müller,
  • Serge Chiarenza,
  • Hélène Javot,
  • Noëlle Becuwe-Linka,
  • Pascale David,
  • Benjamin Péret,
  • Etienne Delannoy,
  • Marie-Christine Thibaud,
  • Jean Armengaud,
  • Steffen Abel,
  • Jean-Luc Pellequer,
  • Laurent Nussaume,
  • Thierry Desnos

DOI
https://doi.org/10.1038/ncomms15300
Journal volume & issue
Vol. 8, no. 1
pp. 1 – 16

Abstract

Read online

Low Pi availability inhibits primary root growth, but the sensory mechanisms are not known. Here the authors uncover a signalling pathway regulating Pi-mediated root growth inhibition inArabidopsis, involving the transcription factor STOP1, its direct target ALMT1, a malate channel, and ferroxidase LPR1.