Effects of salinity on the survival of non-O1 Vibrio cholerae under environments of low temperature.
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.
Uchiyama
H
H
Todoroki
T
T
Matsui
S
S
D003080:Cold Temperature; D008274:Magnesium / Q000494:pharmacology; D015636:Magnesium Chloride; D012965:Sodium Chloride / Q000008:administration & dosage / Q000494:pharmacology*; D014734:Vibrio cholerae / Q000254:growth & development*
D015636:Magnesium Chloride; D012965:Sodium Chloride; D008274:Magnesium