Biochemical properties, enterohaemolysin production and plasmid carriage of Shiga toxin-producing Escherichia coli strains

Thirty-eight strains of Shiga toxin-producing Escherichia coli (STEC) were characterised in terms of biochemical properties, enterohaemolysin production and plasmid carriage. A wide variation in the biochemical properties was observed among the STEC, with 14 distinct biotypes identified. Biotype 1 w...

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Vydáno v:	Memórias do Instituto Oswaldo Cruz Ročník 105; číslo 3; s. 318 - 321
Hlavní autoři:	Souza, Mario R.S.R.S.M, Klassen, Giseli, De Toni, Fabiana, Rigo, Liu U, Henkes, Caroline, Pigatto, Caroline P, Dalagassa, Cibelle de Borba, Fadel-Picheth, Cyntia M.T
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Brazil Fundação Oswaldo Cruz, Fiocruz 01.05.2010 Instituto Oswaldo Cruz, Ministério da Saúde Fundação Oswaldo Cruz (FIOCRUZ)
Témata:	Animals biochemical properties Cattle Child DNA, Bacterial - genetics Electrophoresis, Gel, Pulsed-Field enterohaemolysin Escherichia coli Escherichia coli Proteins - biosynthesis Escherichia coli, STEC, plasmid profile, enterohaemolysin, biochemical properties Hemolysin Proteins - biosynthesis Humans PARASITOLOGY plasmid profile Plasmids - genetics Shiga-Toxigenic Escherichia coli - genetics Shiga-Toxigenic Escherichia coli - metabolism STEC TROPICAL MEDICINE STEC biochemical properties plasmid profile enterohaemolysin Escherichia coli
ISSN:	1678-8060, 0074-0276, 0074-0276, 1678-8060
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Shrnutí:	Thirty-eight strains of Shiga toxin-producing Escherichia coli (STEC) were characterised in terms of biochemical properties, enterohaemolysin production and plasmid carriage. A wide variation in the biochemical properties was observed among the STEC, with 14 distinct biotypes identified. Biotype 1 was the most common, found in 29% of the strains. Enterohaemolysin production was detected in 29% of the strains. Most of the bacterial strains (95%) carried one or more plasmids and considerable heterogeneity in size and combinations was observed. Seven distinct plasmid profiles were identified. The most common profile, characterised by the presence of a single plasmid of ~90 kb, was found in 50% of these strains. These data indicate extensive diversity among STEC strains. No correlation was found among biotype, serotype, enterohaemolysin production and plasmid profile.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1
ISSN:	1678-8060 0074-0276 0074-0276 1678-8060
DOI:	10.1590/S0074-02762010000300013