ВПЛИВ ІОНІВ МАНГАНУ, ЦИНКУ, КУПРУМУ ТА ПЛЮМБУМУ НА ВМІСТ ВІЛЬНИХ АМІНОКИСЛОТ В ОРГАНІЗМІ КОРОПА

Abstract

The influence of ions of Manganese, Zinc, Copper and Lead in two concentrations, which corresponded to 2 and 5 MPC, on the content of free amino acids in the carp organism was studied. It is shown, that free amino acids are compounds, that are actively used in the energy supply of fish organisms. Their metabolism is one of the factors, that provides biochemical adaptation of fish to the changes of the conditions in the aquatic environment. The leading role in this process in carp organism have glycine, the content of which in the muscles of the control fish is quite high. It exceeds all other concentrations of amino acids in this tissue, and when exposed to the organism of fish, the ions of the investigated metals decreases to the greatest extent. Among other amino acids, it should be noted the growth both in the muscles and in the liver of experimental fish the amount of sulfur-containing. An important role in the detoxification of ammonia, which is formed under the influence on the organism of carp the elevated metal concentrations, belongs to aspartic and glutamic acids. In our studies, the content of free amino acids in the liver and muscle of fish is reduced by the action of metal ions, which may indicate an active involvement of aspartic and glutamic acid in the processes of detoxification of these ions. In general, the dynamics of free amino acids in carp tissues reflects the general tendencies of metabolism in its organism. Oxidation catabolism of amino acids of skeletal muscle and liver of fish is an important part of the integral physiological and biochemical mechanism, which provides energy homeostasis in their organism in conditions of intoxication.