Decrease in culturability of Vibrio cholerae caused by glucose
Article Abstract:
Aquatic environments are characterized by nutrient imbalance with varying effects on the survival of bacteria. The addition of glucose to the bacterium suspension of Vibrio cholerae in starvation media, causes a reduction in culturability of the bacteria and this inhibitory effect is called glucose shock. In the presence of nitrogen or phosphorous sources the glucose shock is not observed. In investigating the bacteria distribution in marine ecosystems where there is more carbohydrate and less nitrogen and phosphorus, the glucose shock phenomenon is beneficial.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1995
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Effect of alum on free-living and copepod-associated Vibrio cholerae O1 and O139
Article Abstract:
Copepod-associated Vibrio cholerae cells are not killed when treated by alum and chlorine singly or combined but undergo a viable but nonculturable state. Alum is used to disinfect drinking water in places where cholera is endemic. Further treatment with chlorine may be ineffective as 90% of the cells still remain and may cause cholera. This finding suggests that in addition to alum and chlorine treatment, drinking water should be filtered to eliminate the presence of copepod-associated Vibrio cells.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1997
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Association of Vibrio cholerae O1 E1 Tor and O139 Bengal with the copepods Acartia tonsa and Eurytemora affinis
Article Abstract:
Laboratory microcosm experiments are carried out for the quantitative comparison of the colonization of two copepod species, Acartia tonsa and Eurytemora affinis, by each of the epidemic serogroups. The difference in colonization is significant in the general predominance of Vibrio cholera O1 in cholera epidemics in rural Bangladesh where water supplies are taken directly from the environment.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2007
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