O R Kulachkovs'kyĭ

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The ultrastructure of embryo cells of the loach (Misgurnus fossilis L.) at the stage of first division of blastomers in control and under the conditions of fluoroquinole borocin treatment has been investigated. The influence of this antibiotic at concentrations 5 and 25 mkg/ml has resulted in significant ultrastructural changes of embryo cells, such as(More)
A pttg gene knockout affects the functional state of erythron in mice which could be associated with structural changes in the structure of erythrocyte membranes. The pttg gene knockout causes a significant modification of fatty acids composition of erythrocyte membrane lipids by reducing the content of palmitic acid and increasing of polyunsaturated fatty(More)
The ultrastructural organization of loach embryo cells (Misgurnus fossilis L) at the stage of the first and the tenth embryo divisions was investigated in the control and under the influence of low intensity helium-neon laser irradiation of 5 min exposure. The effect of laser irradiation led to ultrastructural changes in cell organelles, increasing the(More)
The influence of some factors (tris-HCl buffer, pH 8.0, concentration, use of different binding agents aeration modes, genetically determined peroxisome degradation damage) on biotransformation efficiency of 0.217 M (1%) ethanol to acetaldehyde at 30 degrees C by Hansenula polymorpha 7-4A (gcrl EAO) strain cells with glucose repression block was(More)
In cells of micobacteria of all investigated samples the following ultrastructural changes were observed: disorganization of a nucleoid and citoplasm, formation of the citoplasmic vacuoles and endocellular lipide-like inclusions, and also change of the cells form into spheroid and formeless mass, disappearance of periplasmatic space, occurrence of cells of(More)
This paper reports the results of a study of the impact of the agmatine treatment on erythrocyte resistance to acid hemolytic, reticulocyte count and reticulocyte production index, erythrocyte surface architectonics in streptozotocin-induced diabetic rats. Our results indicate that treatment of diabetic rats with agmatine causes a suppression of(More)
The influence of novel biologically active substance potassium 4-toluenethiosulfonate in concentration of 4 x 10(-5) M on the changes of electrophysiological parameters of embryonic cells in early development of fish (Misgurnus fossilis L.) was investigated including the changes of membrane potential (TMP) and enzyme activity of plasmatic membranes of loach(More)
Eleven pure bacteria cultures, able to oxidize thiosulfate during growth at pH 7.0-9.4, were isolated from surface layers of Yavoriv sulfur deposit open pit waters. Two cultures proved to be obligate aerobes, but nine cultures performed anaerobic respiration using nitrite, N2O (5 cultures) or only nitrite (4 cultures) as terminal electron acceptors. The(More)
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