Hormone crosstalk: directing the flow

Curr Biol. 2014 May 5;24(9):R366-8. doi: 10.1016/j.cub.2014.03.018.

Abstract

Asymmetric distribution of the hormone auxin organizes plant cell fate and drives specification of new organs. Such asymmetries are regulated by polarized auxin transporters called PINs. But what controls PIN polarity? A new study shows that another hormone, cytokinin, degrades PINs on specific membranes to direct auxin flux.

Publication types

  • Comment

MeSH terms

  • Arabidopsis / metabolism*
  • Arabidopsis Proteins / metabolism*
  • Cytokinins / metabolism*
  • Indoleacetic Acids / metabolism*
  • Membrane Transport Proteins / metabolism*
  • Plant Roots / growth & development*

Substances

  • Arabidopsis Proteins
  • Cytokinins
  • Indoleacetic Acids
  • Membrane Transport Proteins
  • PIN1 protein, Arabidopsis