The Journal of General Physiology
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The Journal of General Physiology, Vol 13, 349-359, Copyright © 1930 by The Rockefeller University Press

ARTICLE

OXIDATION-REDUCTION POTENTIALS AND THE POSSIBLE RESPIRATORY SIGNIFICANCE OF THE PIGMENT OF THE NUDIBRANCH CHROMODORIS ZEBRA

Paul W. Preisler 1

1 From the Chemical Laboratory, Harvard University; and the Laboratory of General Physiology, Harvard University, Cambridge

1. Oxidation-reduction potential methods have been applied to a study of the blue-purple pigment present in solution in the blood and in the tissue cells of the nudibranch Chromodoris zebra.

2. The blue-purple pigment and its yellow reduction product form a reversible system whose Eo' = x0.102 volts at pH 7.0 and whose valence change from oxidant to reductant appears to be one.

3. The system is unlike oxyhemoglobin-hemoglobin in the mode of oxygen transfer. Its rôle as a possible respiratory material is discussed.

 Accepted on November 20, 1929


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Cold Spring Harb Symp Quant Biol, January 1, 1933; 1(0): 214 - 223.
[Abstract] [PDF]


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