Effects of salinity on the survival of non-O1 Vibrio cholerae under environments of low temperature.
1989
: Under low temperature conditions, the effects of survival and growth of non-O1 Vibrio cholerae were studied in laboratory microcosms. As the environmental factors, various concentrations of NaCl solution and that of mono- and bivalent cation added nutrient of polypeptone were used under several temperatures. The results of these experiments suggested an extended survival of non-O1 V. cholerae at low temperature. When a range of NaCl concentration in microcosms water was between 0.4% and 2.0% with absent of nutrient, the survival of this organism was good under the temperature from 10 degrees C to 20 degrees C. With added nutrient, when about 10 mM bivalent cation and over 0.3% NaCl co-existed, this strain was able to grow at 10 degrees C, and showed good survival. This finding suggested the possibility of survival under 10 degrees C.
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