Role of Zinc in Plasma Membrane Integrity and O2 -Generating NADPH Oxidase Activity

  • I. Cakmak
  • H. Marschner
Part of the NATO ASI Series book series (NSSA, volume 7)


The NADPH− dependent superoxide radical (O2 ) generation and plasma membrane permeability were studied in roots of cotton (Gossypium hirsutum c.) plants grown in nutrient solution with different Zn concentrations. Zinc deficiency increased plasma membrane permeability indicated by efflux of K+; NO3 , amino acids, sugars and phenolics. Resupply of Zn to deficient plants for 12 h substantially decreased this leakage (1).


Electron Spin Resonance Nutrient Solution Membrane Permeability NADPH Oxidase Oxidase Activity 
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  1. 1.
    Cakmak, I. and Marschner, H. (1988). J. Plant Physiol. (in press)Google Scholar
  2. 2.
    Cakmak, I. and Marschner, H. (1988). Physiol. Plant. (in press)Google Scholar
  3. 3.
    Cakmak, I. and Marschner, H. (1988). J. Exp. Bot. (submitted)Google Scholar

Copyright information

© Springer Science+Business Media New York 1988

Authors and Affiliations

  • I. Cakmak
    • 1
    • 2
  • H. Marschner
    • 1
    • 2
  1. 1.Dept. Plant NutritionUniv. CukurovaAdanaTurkey
  2. 2.Dept. Plant NutritionUniv. HohenheimStuttgartGermany

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