Stomatal opening is induced in epidermal peels of Commelina communis L. by GTP analogs or pertussis toxin

Ho Joung Lee, Edward B. Tucker, Richard C. Crain, Youngsook Lee

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Pretreatment with pertussis toxin or microinjection of guanosine-5′-(3-thiotriphosphate) (GTP-γ-S) into guard cells in peeled epidermis of Commelina commuais L. promoted stomatal opening under subsaturating white light. Guanosine-5′-(2-thiodiphosphate) (GDP-β-S) and adenosine-5′-(3-thiotriphosphate) (ATP-γ-S) did not change stomatal aperture under identical conditions. These results indicate that G proteins may be involved in the regulation of stomatal opening.

Original languageEnglish
Pages (from-to)95-100
Number of pages6
JournalPlant physiology
Volume102
Issue number1
DOIs
Publication statusPublished - 1993 May

ASJC Scopus subject areas

  • Physiology
  • Genetics
  • Plant Science

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