Induction of enzymes as a mechanism for the seasonal control of metabolism in marine invertebrates: glucose-6-phosphate dehydrogenases from the mantle and hepatopancreas of the common mussel Mytilus edulis L.
Livingstone, D.R. (1981). Induction of enzymes as a mechanism for the seasonal control of metabolism in marine invertebrates: glucose-6-phosphate dehydrogenases from the mantle and hepatopancreas of the common mussel Mytilus edulis L. Comp. Biochem. Physiol. (B Biochem. Mol. Biol.) 69(2): 147-156. https://dx.doi.org/10.1016/0305-0491(81)90224-8
In: Comparative Biochemistry and Physiology. Part B. Biochemistry and Molecular Biology. Pergamon: Oxford. ISSN 1096-4959; e-ISSN 1879-1107, more
|  |
| Keywords |
Chemical compounds > Organic compounds > Carbohydrates > Saccharides > Monosaccharides > Glucose
Enzymatic activity
Metabolism
Secretory organs > Glands > Exocrine glands > Digestive system > Digestive glands > Hepatopancreas
Temporal variations > Periodic variations > Seasonal variations
Mytilus edulis Linnaeus, 1758 [WoRMS]
Marine/Coastal |
| Abstract |
1. Glucose-6-phosphate dehydrogenase from the hepatopancreas and mantle tissue of M. edulis was investigated over two years for changes in specific activity (crude enzyme preparations) and the apparent Michaelis constants for G6P and NADP+ (highly purified enzyme preparations).2. The specific activity of the mantle enzyme was low in summer and autumn and increased in the winter during the time of lipid deposition. In contrast, the specific activity of the hepatopancreas enzyme was high in summer and declined during the autumn and winter.3. The apparent Km values for G6P and NADP+ of the mantle enzymechange little during a year. Changes were observed for the hepatopancreas enzyme during the first year but not the second. |
|
