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Quarterly Journal of Microscopical Science, Vol s3-103, 41-46, Copyright © 1962 by Company of Biologists

Histochemical Demonstration of Certain DPN-Linked Dehydrogenases and of Aldolase in the Red and White Fibres of Pigeon Breast-Muscle

J. C. GEORGE 1 and C. L. TALESARA 1

1 The Division of Animal Physiology and Histochemistry, Department of Zoology, M.S. University of Baroda, Baroda, India

The distribution and localization-pattern of certain DPN-linked dehydrogenases (malic, lactic, D-glucose, glutamic, and a-glycerophosphate) were demonstrated histochemically in the red and white fibres of pigeon breast-muscle by using neotetrazolium as the hydrogen acceptor, under strictly anaerobic conditions. All the dehydrogenases studied showed distinctly higher enzyme activity in the narrow red fibres than in the broad white fibres. That of a-glycerophosphate was, however, found to be appreciably more abundant than other dehydrogenases in the broad fibres. A high concentration of aldolase, which forms an important link in the chain of enzymes in glycolysis, was histochemically demonstrated in the broad, white, glycogen-loaded fibres.






© The Company of Biologists Ltd 1962