Предобработка озоном повышает уÑтойчивоÑÑ‚ÑŒ мембран дрожжей Saccharomyces cerevesiae при замораживании-отогреве
Тhe effect of ozone on injury of Saccharomyces cerevisiae yeast membranes following freezing (down to –196°C) and warming (up to 30°C) was investigated using fluorescent staining and flow cytometry. It has been shown that freeze-thawing of S. cerevisiae cells in physiological solution resulted...
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| Datum: | 2014 |
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| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Publishing House ‘Akademperiodyka’ of the National Academy of Sciences of Ukraine; Institute for Problems of Cryobiology and Cryomedicine
2014
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| Schlagworte: | |
| Online Zugang: | https://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/545 |
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| Назва журналу: | Problems of Cryobiology and Cryomedicine |
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Problems of Cryobiology and Cryomedicine| Zusammenfassung: | Тhe effect of ozone on injury of Saccharomyces cerevisiae yeast membranes following freezing (down to –196°C) and warming (up to 30°C) was investigated using fluorescent staining and flow cytometry. It has been shown that freeze-thawing of S. cerevisiae cells in physiological solution resulted in the injury of membranes in 65.6% of total cells population. Treatment of the cells with ozone in a dose of 29–240 рmol О3/106 cells prior to freezing allowed to reduce significantly the number of damaged cells: (16.1 ± 0.9)% of total population. The observed effect was explained by cross-adaptation caused by ozone introduction: the adaptive response to slight oxidative stress initiated the genetically determined mechanisms of responces to other stresses, including the one caused by freeze-thawing.Probl Cryobiol Cryomed 2014; 24(1):38–46. |
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