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An extracellular exopolysaccharide (slime) is produced by Vibrio cholerae O139 MO10 in response to nutrient starvation. The presence of this slime layer on the cell surface and its subsequent release have been shown to be associated with biofilm formation and the change from a normal smooth colony morphology to a rugose one. An immunoelectron microscopic examination demonstrated that there is an epitope common to the exopolysaccharide antigen of V. cholerae O1 and that of O139 MO10.
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Mizunoe et al. (1999) studied this question.
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