Sevastopol State University
Sevastopol, Sevastopol, Russian Federation
The natural mobility of the organisms affects the functional state and development of many organ systems and tissues. It influences, first of all, oxygen supply systems: respiratory, circulatory, blood. Of particular interest are molecular complexes whose functional characteristics are determined at the genetic level. These include respiratory pigments, hemoglobin in particular, to which this work is devoted. The gas transport properties of the blood of a highly mobile mullet-pilengas (Planiliza haematocheilus) and a sedentary bottom species – grass goby (Zosterisessor ophiocephalus) were studied. Blood was obtained by puncture of the caudal artery. Heparin was used as an anticoagulant. Pilengas' blood had a higher concentration of hemoglobin and the number of red blood cells. The differences in hemoglobin were almost 40% (p <0.01), in erythrocytes about 2 times (p <0.01) (p <0.001). With respect to the mean cell hemoglobin content (MCN), the results were the opposite. Pilengas' blood was characterized by low affinity for oxygen and increased sensitivity to pH. The value of P50 and the values of the Born effect (r) in pilengas were 25-26% (p <0.01) and 2.7-2.8 times (p <0.001), respectively, higher than in grass goby. The values of the Hill coefficient (n), intracellular concentrations of nucleotide triphosphates and Cl- coincided in both species. The differences obtained reflect the process of adaptation of the pilengas organism to a highly mobile lifestyle.
hemoglobin, erythrocytes, blood dissociation curves, intra-erythrocyte medium, Planiliza haematocheilus, Zosterisessor ophiocephalus
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