| Literature DB >> 19580980 |
Reza Ghanbarpour1, Eric Oswald.
Abstract
One hundred and twenty seven Escherichia coli isolates from bovine mastitis were examined to detect the phylogenetic group/subgroups and a selection of virulence associated genes. Forty nine (38.58%) isolates belonged to group B1 the remaining isolates fell into four phylogenetic subgroups: A(0) (18.11%), A(1) (26.77%), D(1) (6.29%) and D(2) (10.23%). None of the isolates belonged to B2 group. Forty seven (37.00%) isolates were positive for at least one virulence gene, among them f17A was the most common gene, found in 20.47% of the isolates. Among the E. coli isolates, 11.81% had iucD, 9.44% f17c-A, 9.44% cnf2, 7.87% f17b-A, 6.29% afaD-8 and afaE-8, 3.14% f17d-A, 0.78% cnf1 and 0.78% clpG genes. All of the detected virulence genes were present alone or in combination with each other except clpG and f17d-A genes that were only found alone. None of the isolates contained the genes for F17a-A, intimin, P or S fimbriae. Copyright 2009 Elsevier Ltd. All rights reserved.Entities:
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Year: 2009 PMID： 19580980 DOI： 10.1016/j.rvsc.2009.06.003
Source DB: PubMed Journal: Res Vet Sci ISSN： 0034-5288 Impact factor: 2.534