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Relationship between Auxin-Dependent Proton Extrusion and Plasmalemma Redox System in Maize Coleoptile Segments

  • S. del Valle-Tascón
  • J. Salguero
  • F. González-Darós
Part of the NATO ASI Series book series (NSSA, volume 7)

Abstract

Abraded coleoptile segments reduce ferricyanide utilizing endogenous substrates. The kinetics of ferricyanide reduction shows an initial rapid rate followed by a slow rate of reduction. The duration of the initial phase is about 5 minutes. The slow phase is observed for more than 30 minutes. A Lineweaver-Burk plot of the slow phase was linear and revealed maximum velocity of the reaction of 42 nmols ferricyanide reduced/hour*coleoptile segment and an apparent Km (ferri) of 2.25mM.

Keywords

Maximum Velocity Slow Phase Redox System Endogenous Substrate Redox Activity 
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

  • S. del Valle-Tascón
    • 1
  • J. Salguero
    • 1
  • F. González-Darós
    • 1
  1. 1.Departamento de BiologíaUniversitat de València VegetalBurjasot, ValenciaSpain

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