Journal article
Plasmid-Borne Virulence-Associated Genes Have a Conserved Organization in Virulent Strains of Avian Pathogenic Escherichia coli
Kelly A Tivendale, Joanne L Allen, Glenn F Browning
JOURNAL OF CLINICAL MICROBIOLOGY | AMER SOC MICROBIOLOGY | Published : 2009
DOI: 10.1128/JCM.00391-09
Abstract
Avian pathogenic Escherichia coli (APEC) is an important respiratory pathogen of poultry. Various virulence factors are responsible for determining the pathogenicity of these strains, and it is commonly believed they are encoded on large plasmids the strains carry. This study examined a series of strains, the pathogenicity of which had previously been determined by aerosol exposure, for possession of large plasmids and found all isolates carried at least one large plasmid, regardless of the level of virulence. Virulence-associated genes carried on these plasmids were also examined, and it was shown that highly virulent strains carried at least four virulence-associated genes on their largest..
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Funding Acknowledgements
This work was funded by the Australian Poultry CRC.