Two different amylase activities in the sea mussel, Mytilus edulis L

M. Alemany
M. Rosell-Pérez
61

Abstract




Digestive /?-amylase activity has been previously described in the sea mussel. It has been observed that in this animal species there are two different amylase activities, both of them a-amylase type. These enzyme activities show different optimum temperature and pH behavior, and are differently activated by effectors, and precipitated with dif­ ferent concentrations of neutral salts. The two enzyme activities show an almost ubi­ quitous distribution in all tissues and organs, with appreciably high levels of activity. These activities are also clearly found in non-digestive organs as gonadal tissues, and, especially, in the muscle tissue.


It is suggested that the amylases found can play a complementary role in the rapid mobilization of glucidic fuels during the physiological anoxic cyclic states of this animal species.




Keywords:
Amylases/analysis/metabolism, Animals, Bivalvia/enzymology, Chromatography, Enzyme Activation, Hydrogen-Ion Concentration, Paper, Temperature, Thin Layer

Authors

M. Alemany
M. Rosell-Pérez


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