Abstract
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 population with participation of inducible cold isoenzymes or at the level of a part of population, the temperature being a selection factor of the adapted cells.
MeSH terms
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Adaptation, Physiological / physiology*
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Animals
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Catalase / metabolism
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Cold Temperature*
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Culture Media
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DNA, Bacterial / physiology
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Dysentery, Bacillary / microbiology
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Guinea Pigs
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Isoenzymes / metabolism
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Keratoconjunctivitis, Infectious / microbiology
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Plasmids / physiology
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Shigella sonnei / enzymology
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Shigella sonnei / pathogenicity
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Shigella sonnei / physiology*
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Temperature
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Time Factors
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Yersinia pseudotuberculosis / enzymology
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Yersinia pseudotuberculosis / physiology*
Substances
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Culture Media
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DNA, Bacterial
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Isoenzymes
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Catalase