Plant cell pH-static circuit mediated by fusicoccin-binding proteins

FEBS Lett. 1997 Mar 24;405(2):145-7. doi: 10.1016/s0014-5793(97)00172-5.

Abstract

On sugar beet protoplasts that carry two types of fusicoccin-binding sites, a pH downshift in a physiological range (7.0-6.6) markedly enhanced the efficiency of fusicoccin (FC) binding, mainly owing to increased avidity of low-affinity FC-binding sites. This may allow the FC-binding proteins to act as pH-sensitive modulators of cell activity, for instance, via plasma membrane H+-ATPase or potassium channels.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biological Transport
  • Cells, Cultured
  • Glycosides / metabolism*
  • Homeostasis
  • Hydrogen-Ion Concentration*
  • Plant Proteins / metabolism*
  • Proton-Translocating ATPases / metabolism
  • Protoplasts
  • Receptors, Cell Surface / metabolism*
  • Vegetables / cytology
  • Vegetables / metabolism

Substances

  • Glycosides
  • Plant Proteins
  • Receptors, Cell Surface
  • fusicoccin receptor protein, plant
  • fusicoccin
  • Proton-Translocating ATPases