Regulation of ferricyanide reduction by epidermal tissue

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3 Scopus citations


Ferricyanide reduction by epidermal strips of Commelina communis is stimulated by plasmolysis, and this stimulation is partially reversed by re-hydration. The reduction of ferricyanide takes place only in the guard cells.KCN stimulates ferricyanide reduction, indicating that NADH serves as an electron donor. Catalase, which inhibits NAD(P)H driven oxygen uptake [Askerlund et al. (1987) Physiol. Plant. 71: 9-19., Pantoja and Willmer (1988) Planta 174: 44-50.] enhances ferricyanide reduction and this stimulation is evident mainly in the non-plasmolysed tissues. Differences between the non-pretreated tissues and the plasmolysed ones are discussed.

Original languageEnglish
Pages (from-to)77-80
Number of pages4
JournalPlant and Cell Physiology
Issue number1
StatePublished - 1 Dec 1990


  • Commulina communis
  • Guard cell
  • Transplasmalemma redox activity

ASJC Scopus subject areas

  • Physiology
  • Plant Science
  • Cell Biology


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