Effects of salinity on the survival of non-O1 Vibrio cholerae under environments of low temperature

Kansenshōgaku zasshi. The Journal of the Japanese Association for Infectious Diseases
H UchiyamaS Matsui

Abstract

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.

Citations

Sep 24, 2002·Cadernos de saúde pública·Joseli Maria da Rocha NogueiraErnesto Hofer

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