Abstract
The maintenance of the gray mullet Liza aurata under conditions of hypoxia (\( P_{O_2 } \) 55–82 GPa) for 1–2 days led to a decrease of oxygen tension in arterial blood by 47%, while in venous blood—by 28%. The mean muscle oxygen tension decreased by 19.2%. The number of hypoxic and anoxic zones in muscle tissue decreased significantly, in particular in red muscle. The maintenance of the fish in hypoxic waters for 15 days led to a rise of the content of cytochromes in muscle and a qualitative readjustment of the mitochondrial respiratory chain manifested in an increase of the content of cytochromes a and a3 and a decrease of cytochrome b. In discussion, literature data are presented which support the described regularity.
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Original Russian Text © A. A. Soldatov, M. V. Savina, 2008, published in Zhurnal Evolyutsionnoi Biokhimii i Fiziologii, 2008, Vol. 44, No. 5, pp. 508–512.
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Soldatov, A.A., Savina, M.V. Effect of hypoxia on the content and stoichiometry of cytochromes in muscle of the gray mullet Liza aurata . J Evol Biochem Phys 44, 599–604 (2008). https://doi.org/10.1134/S0022093008050095
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DOI: https://doi.org/10.1134/S0022093008050095