Abstract
IN a thesis on the anaerobic metabolism and mechanical efficiency of the heart of the turtle, by R. Blake Reeves1, there is evidence that this heart is able to work efficiently for any length of time without access to oxygen (nitrogen anoxia). In view of this remarkable quality we found it interesting to investigate the content of cytochrome c in the heart of the turtle (Testudo graeca). To our knowledge, no such data are available in the literature2–4, although reports on the cytochrome c content of the heart of the frog have been published by Keilin5.
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References
Reeves, R. B., thesis, Harvard University, Cambridge, Mass, 1959.
Barcroft, J., The Respiratory Function of the Blood, Pt. 2 (Camb. Univ. Press, 1928).
Lemberg, R., and Legge, J. W., Hematin Compounds and Bile Pigments, 377 (Interscience Pub. Inc., New York, 1949).
Biörck, G., Acta Med. Scand., 154, 305 (1956).
Keilin, D., Proc. Roy. Soc., B, 98, 312 (1925).
Paléus, S., Acta Chem. Scand., 14, 1743 (1960).
Green, D. E., The Harvey Lectures, 52, 177 (1956–1957).
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BIÖRCK, G., PALÉUS, S. Cytochrome c in the Heart of the Turtle. Nature 191, 712–713 (1961). https://doi.org/10.1038/191712b0
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DOI: https://doi.org/10.1038/191712b0
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