Effects of microcosm salinity and organic substrate concentration on production of Vibrio cholerae enterotoxin.
AUTOR(ES)
Tamplin, M L
RESUMO
The effects of aquatic processes on production of cholera toxin by Vibrio cholerae were studied with seawater microcosms. Several salinity and organic nutrient concentrations were employed. At 10 g of organic nutrient per liter of seawater, toxin production increased as the salinity was increased. At lower organic nutrient concentrations, toxin production was markedly enhanced when the salinity was 20 and 25%. Toxin concentration increased with salinity, independent of cell concentration and toxin stability. From the results obtained in this study, it is concluded that physical and chemical parameters of the aquatic environment affect not only the physiological state of V. cholerae, but also its potential pathogenicity.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=203518Documentos Relacionados
- Influence of salinity and organic nutrient concentration on survival and growth of Vibrio cholerae in aquatic microcosms.
- Vibrio cholerae hemagglutinin/protease nicks cholera enterotoxin.
- Effects of temperature and salinity on Vibrio cholerae growth.
- Purification and characterization of Vibrio cholerae non-O1 heat-stable enterotoxin.
- Intestinal myoelectric activity in response to live Vibrio cholerae and cholera enterotoxin.
