1. After 6 days of anoxia A. cygnea had produced 1.0 µmole succinate, 2.7 µmole propionate
and 1.7 µmole acetate/g of total soft tissue (wet). In addition, 0.35 µmole glutamate had disappeared. No
other changes were detectable.
2. Concentrations of anaerobic end products and of amino acids differed from organ to organ. Large
portions of all end products produced were present in the fluids within the animal.
3. Acetate and propionate were also excreted into the surrounding water.
4. In all tissues examined the activity ratio of pyruvate kinase and phosphoenolpyruvate carboxykinase
was high
5. The [PEP]₀.₅ of pyruvate kinase was relatively low (0.04-0.05 mM at pH 7.5), and the enzyme is not
strongly inhibited at decreased pH or in the presence of alanine.
6. Anaerobiosis influences this enzyme by decreasing the activity at low substrate concentration
Is data on this page outdated, violates copyrights or anything else? Report the problem now and we will take corresponding actions after reviewing your request.