The influence of lipid factor on the manifestation of adaptationcompensatory reactions of gamete plasma membranes of farm animals
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2021-03-22 15:49
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BUZAN, Vladimir, BORONCIUC, Gheorghi, BALAN, Ion, CAZACOV, Iulia, ROŞCA, Nicolae, BUCARCIUC, Melania, MEREUŢĂ, Ion, DUBALARI, Alexandru. The influence of lipid factor on the manifestation of adaptationcompensatory reactions of gamete plasma membranes of farm animals. In: Scientific Papers Series D. Animal Science, 20-21 septembrie 2018, București. București, România: CERES Publishing House, 2018, Volume LXI, No. 1, pp. 143-148. ISSN 22285-5750; ISSN CD-ROM 2285-5769; ISSN Online 2393-2260; ISSN-L 2285-5750.
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Scientific Papers Series D. Animal Science
Volume LXI, No. 1, 2018
Sesiunea "Scientific Papers Series D. Animal Science"
București, Romania, 20-21 septembrie 2018

The influence of lipid factor on the manifestation of adaptationcompensatory reactions of gamete plasma membranes of farm animals


Pag. 143-148

Buzan Vladimir, Boronciuc Gheorghi, Balan Ion, Cazacov Iulia, Roşca Nicolae, Bucarciuc Melania, Mereuţă Ion, Dubalari Alexandru
 
Institute of Physiology and Sanocreatology
 
Disponibil în IBN: 9 iulie 2020


Rezumat

By the methods of spectrophotometric, chromatographic and morphological studies established that as a result of influence of the temperature factor takes place adaptation-compensatory reactions in the gamete plasma membranes of farm animals. As a result of the adaptive-compensatory reactions in the plasma membranes of bull and boar gametes to the influence of temperature factor occur a shift of the phase transition of lipids to a lower temperature. In plasma membranes the amount of phospholipids predominates over cholesterol. During the stages of cryopreservation of cock semen there is a decrease in the amount of cerebrosides of 1, 5, 6, and 8 fraction, which compensates by increasing of quantity of cerebrosides third faction. In a similar direction changes the phospholipid-cholesterol ratio, which tends to unity, that is, in the direction of eliminating the phase transitions of lipids. The observed processes may be a consequence of a change in the activity of the phospholipase system, which is a gamete protective reaction in response to the action of extreme cryopreservation factors. The obtained results of the studies of fatty acid composition of plasma membranes testify to its change under the action of cryogenic factors. The accumulated material allows us to note the manifestation of specific reactions characteristic of individual fatty acids during freezing and thawing of biological objects. The change in the content of phospholipids and the saturation of fatty acids of plasma membranes testifies a complex adaptive-compensatory reactions aimed at preserving the viability of gametes in the new conditions of their stay.

Cuvinte-cheie
gametes, temperature factors, adaptation reactions