Stomatal response to ATP mediated by phytochrome

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Abstract

External ATP stimulated stomatal opening in epidemal strips of Commelina communis L. in darkness following brief irradiation with white or red light. ATP had no effect in darkness after irradiation with far red light or in continuous light. Mg2+ stimulated stomatal response to ATP, which was shown to be taken‐up by the tissue. This implies that a Mg‐stimulated ATPase, that interacts with Pfr, may be involved in stomatal opening.

Original languageEnglish
Pages (from-to)367-370
Number of pages4
JournalPhysiologia Plantarum
Volume57
Issue number3
DOIs
StatePublished - 1 Jan 1983

Keywords

  • Commelina communis
  • Mg‐dependent ATPase

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