FEATURES POWER SUPPLY OF TISSUES CARP CYPRINUS CARPIO L. FOR EXPOSURE TO HIGH WATER TEMPERATURE
Abstract
The peculiarities of power supply of various carp tissues under the influence of high water temperature are investigated. It was established that the processes of energy generation and energy consumption due to the unfavorable temperature factor in the tissues of the muscles, gills and liver of the mentioned species of fish are characterized by different intensity. In the muscles and gills, the content of adenine nucleotides at a temperature of 26°C is sharply reduced, whereas in the liver the change in the values of these indicators is not so pronounced. The ratio of ATP:ADP:AMP in almost all investigated tissues with a gradual increase in temperature from 24ºС to 34ºС is violated in the direction of increasing the proportion of AMP. In the case of adenylates energy charge, the results may indicate an inactivation of the ATP decomposition, as well as the inclusion of a compensatory mechanism of the carp by the body, aimed at preventing a decrease in the energy supply of tissues. The value of the main bioenergetic coefficients in the corresponding tissues at a temperature of 26°C is also reduced, but with a further rise in temperature to 34°C, the difference with the control decreases, which may indicate the development of adaptation to the adverse factor. The paper shows the dependence of the course of energy metabolism reactions, namely the exchange of adenylates, in carp tissues on the oscillatory regime of high water temperature. The obtained data indicate a different degree of energy supply of tissues of one organism under non-typical conditions.
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