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Metabolic Changes Associated with Ferricyanide Reduction by Elodea Leaves

  • V. Trockner
  • E. Marrè
Part of the NATO ASI Series book series (NSSA, volume 7)

Abstract

It has been shown that ferricyanide reduction by Elodea densa leaves, in the dark, is associated with a decrease of intracellular pH, a marked depolarization of the transmembrane potential and a net efflux of H+ and K+. The sum of (H+ +K+) extruded is approximately equal to the amount of Fe(CN) 6 3− reduced. Fusicoccin (FC) increases both Fe(CN) 6 3− reduction and the associated efflux of H+ and decreases K+ efflux. This effect is interpreted as a consequence of the hyperpolarizing, cytoplasm alkalinizing action of FC, due to its capacity to activate the ATP-driven H+ pump. The results of a preliminary analysis of the metabolic changes associated with these responses of transport mechanisms to either FC, or Fe(CN) 6 3− , or both in combination, can be summarized as follows.

Keywords

Transport Mechanism Metabolic Change Pentose Phosphate Pathway Pentose Phosphate Transmembrane Potential 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer Science+Business Media New York 1988

Authors and Affiliations

  • V. Trockner
    • 1
  • E. Marrè
    • 1
  1. 1.Department of BiologyUniversity of MilanoMilanoItaly

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