Journal ArticleDOI
An adhesive factor found in strains of Escherichia coli belonging to the traditional infantile enteropathogenic serotypes
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A new adhesive factor was found to occur with greater frequency in EPEC strains and was distinct from type 1 pili and was not inhibited by the presence ofD-mannose.Abstract:
Escherichia coli strains isolated from outbreaks of diarrheal disease were tested for the presence of adhesive factors. Fifty-one of these strains belonged to traditional infantile entero-pathogenic serotypes (EPEC) and 17 belonged to other serotypes. None of these strains were enterotoxigenic and none possessed colonization factors CFA/I or CFA/II, which have been described among strains of enterotoxigenicE. coli (ETEC). EnterotoxigenicE. coli strains from patients with diarrhea and strains which were neither EPEC nor ETEC from subjects without diarrhea were also examined. By means of a tissue culture technique using HEp-2 cells, a new adhesive factor was found to occur with greater frequency in EPEC strains. The adhesive factor was found less frequently in the other groups ofE. coli studied. It was distinct from type 1 pili and was not inhibited by the presence ofD-mannose.read more
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Influence of oxygen availability on physiology, verocytotoxin expression and adherence of Escherichia coli O157
Brian William James,C. W. Keevil +1 more
TL;DR: This study demonstrates that E. coli O157 is a versatile micro‐organism, which responds to environmental conditions likely to be encountered during infection by inducing a phenotype which is more adhesive for human epithelial cells.
Journal ArticleDOI
Prevalence of secreted autotransporter toxin gene among diffusely adhering Escherichia coli isolated from stools of children.
Carla R. Taddei,Ana Carolina Ramos Moreno,Antônio Fernandes Filho,Liana P.G. Montemor,Marina Baquerizo Martinez +4 more
TL;DR: The results show a high correlation between diffusely adhering E. coli (DAEC) and the presence of sat (44%) in intestinal isolates and DAEC strain FBC114 expresses a 107-kDa protein, which showed 98% homology with Sat.
Journal ArticleDOI
Virulence properties of Escherichia coli O111:H12 strains
Valério Monteiro-Neto,Leila Carvalho Campos,Antonio José Piantino Ferreira,Tânia A. T. Gomes,Luiz Rachid Trabulsi +4 more
TL;DR: It is concluded that the O111:H12 serotype, one of the first E. coli identified in infantile diarrhea, belongs to the enteroaggregative E. Escherichia coli category but the genes encoding its adherence phenotype are distinct from those previously described.
Journal ArticleDOI
Distinguishing Pathovars from Nonpathovars: Escherichia coli.
TL;DR: A review of the taxonomic characterization of E. coli based on traditional clinical microbiologic and phylogenetic methods can be found in this paper, where the authors discuss how molecular epidemiologic approaches have been used to address these questions, and how answers to these questions may contribute to our better understanding of the epidemiology of infections caused by E coli.
Journal ArticleDOI
A novel chromosomal locus of enteropathogenic Escherichia coli (EPEC), which encodes a bfpT-regulated chaperone-like protein, TrcA, involved in microcolony formation by EPEC.
TL;DR: ORF1 is a newly isolated EPEC chromosomal gene that encodes a chaperone‐like protein involved in the production of BFP, and was designated trcA (bfpT‐regulated chaper one‐likeprotein gene), suggesting a direct interaction of TrcA with intimin in the cytoplasmic compartment.
References
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Book
Manual for the identification of medical bacteria.
S. T. Cowan,K. J. Steel +1 more
TL;DR: Manual for the identification of medical bacteria as discussed by the authors, Manual for identification of Medical bacteria, مرکز فناوری اطلاعات و اشعران رسانی
Journal Article
Manual For The Identification Of Medical Bacteria
TL;DR: A manual for the identification of medical bacteria is presented for the first time in a systematic fashion.
Journal ArticleDOI
Test for Escherichia coli Enterotoxin Using Infant Mice: Application in a Study of Diarrhea in Children in Honolulu
TL;DR: Use of the infant-mouse test in a study of 37 children with diarrhea in Honolulu revealed no enterotoxin-producing coliform bacteria in the stools, in contrast to studies reported from India, where such strains were found in a large proportion of undifferentiated cases of acute diarrhea in adults.
Journal ArticleDOI
Plasmid-controlled colonization factor associated with virulence in Esherichia coli enterotoxigenic for humans.
TL;DR: It was demonstrated that E. coli H-10407, but not H10407-, possessed pilus-like surface structures which agglutinated with the specific adsorbed (anti-colonization factor) antiserum, which may play an important and possibly essential role in naturally occurring E coli enterotoxic diarrhea in man.