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The concentrations of some enzymes of the citric acid cycle and electron transport system in the large granule graction of eggs and trochophores of the oyster, Crassostrea virginica
Black, Robert E.
Black, Robert E.
Abstract
In an accompanying report Black (1962) has shown that considerable changes in the relative activities of several enzymes of the tricarboxylic acid cycle occur during early development of the oyster. Thus, between the blastula and trochophore stages two enzymes, TPN-specific isocitric dehydrogenase and aipha-keto glutaric dehydrogenase, increase 2- to 3-fold, roughly paralleling the increase in respiration during this same period. Five other enzymes were found not to change appreciably during development to the trochophore. These were: aconitase, succinic dehydrogenase, malic dehydrogenase, DPNH oxidase, and cytochrome oxi dase. Following the trochophore stage cytochrome oxidase decreased somewhat in activity, while the other enzymes remained constant.
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1962-08-01
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Black1962_117.pdf
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Virginia Institute of Marine Science