Rat natriuretic peptide binds specifically to plant membranes and induces stomatal opening

Christoph Gehring*, K. Md Khalid, T. Toop, J. A. Donald

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

Stomatal aperture changes modulate the rate of transpiration and gas exchange in plants. High cellular turgor of the guard cell pair due to water and solute influx leads to stomatal opening, whereas closing is caused by turgor reduction due to water and solute efflux. This process is controlled by plant hormones. We demonstrate that a vertebrate peptide hormone, the rat atrial natriuretic peptide (rANP), induces stomatal opening in Trandescantia sp. in a concentration dependent manner and provide evidence that rANP affects the amiloride sensitive Na+/H+ channel. Furthermore, rANP was found to bind specifically to plant membranes isolated from leaf tissue. We propose that a plant natriuretic peptide (NP) analogue is part of a multifactorial control system that regulates transpiration and solute movements in plants.

Original languageEnglish (US)
Pages (from-to)739-744
Number of pages6
JournalBiochemical and Biophysical Research Communications
Volume228
Issue number3
DOIs
StatePublished - Nov 21 1996

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

Fingerprint Dive into the research topics of 'Rat natriuretic peptide binds specifically to plant membranes and induces stomatal opening'. Together they form a unique fingerprint.

Cite this