L S Nikiforova

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The effect of biologically low temperature (12 degrees C) on the parameters of microbial population such as survival, catalase activity and its isoenzyme spectrum have been investigated on the models of Escherichia coli and Yersinia pseudotuberculosis. The quantity of nucleic acids, plasmid spectrum and temperature effect on the level of plasmid DNA(More)
Biologically low temperature was studied for its effect on the survival of populations and their biochemical and molecular-genetical state. The research was carried out on Yersinia pseudotuberculosis and Shigella sonnei models. It is established that the process of low-temperature adaptation of the populations may occur either at the level of the whole(More)
An iodine-starch method has been developed for the detection of catalase in bacteria and for measuring this enzyme's activity. The method is based on potassium iodide reduction with hydrogen peroxide to form free iodine. The bacteria are layered on starch gel, treated with hydrogen peroxide, and then with potassium iodide. The starch gel stains blue, and(More)
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