1887

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Volume 60, Issue 12

Characterization of pathogenicity island prophage in clinical and environmental strains of Free

Abstract

In this study 86 isolates of were analysed for their adhesive properties and the presence of pathogenicity island genes. With the exception of three isolates, all of the other clinical isolates (92.5 %) contained an intact TCP (toxin-co-regulated pilus) gene cluster. In contrast, 95 % of all environmental non-O1-non-O139 isolates were negative for the TCP gene cluster. The majority of clinical isolates (82.5 %) possessed the complete vibrio pathogenicity island (VPI) gene cluster and had a similar RFLP pattern, while only a single environmental strain possessed an almost complete VPI cluster (lacking 0.4 kb in the and region). The result showed that the isolates with had a strong attachment for HT-29 and Vero cells, whereas isolates with / or / genomic characteristics showed no autoagglutination and weak attachment for the cell lines. Two environmental strains () showed strong adhesive properties to the cell lines, indicating that non-fimbrial adhesive factors are involved in the environmental strains in the absence of TCP.

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© 2011 SGM
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2011-12-01
2024-04-24
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Characterization of pathogenicity island prophage in clinical and environmental strains of Vibrio cholerae
J. Med. Microbiol. 60, 1742 (2011); https://doi.org/10.1099/jmm.0.031732-0
/content/journal/jmm/10.1099/jmm.0.031732-0
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