Document Detail

Characterization of Escherichia coli isolated from cases of avian colibacillosis.
MedLine Citation:
PMID:  8358674     Owner:  NLM     Status:  MEDLINE    
Forty-four western Canadian isolates of Escherichia coli associated with colibacillosis of turkeys and chickens were examined for serotype, antibiotic resistance, and production of aerobactin. The isolates belonged to fourteen O serogroups, with 39% of the strains being non-typeable. A high frequency of resistance to tetracycline, kanamycin, neomycin, cephalothin, streptomycin and erythromycin was observed. Most isolates produced aerobactin. Ten E. coli belonging to serogroups O1, O2 and O78 were also examined for pili production, hemagglutination, serum sensitivity, production of iron-regulated outer membrane proteins (IROMPS), and virulence. All isolates examined produced pili, exhibited mannose-sensitive hemagglutination of avian red blood cells and produced IROMPS under iron-restricted growth conditions. The five isolates of serogroup O1 and O2 were resistant to killing by turkey serum and were highly virulent. Only two of the five isolates of serogroup O78 were serum resistant. No correlation between serum resistance and virulence was observed in serogroup O78.
B J Allan; J V van den Hurk; A A Potter
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Canadian journal of veterinary research = Revue canadienne de recherche vétérinaire     Volume:  57     ISSN:  0830-9000     ISO Abbreviation:  Can. J. Vet. Res.     Publication Date:  1993 Jul 
Date Detail:
Created Date:  1993-09-27     Completed Date:  1993-09-27     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  8607793     Medline TA:  Can J Vet Res     Country:  CANADA    
Other Details:
Languages:  eng     Pagination:  146-51     Citation Subset:  IM    
Veterinary Infectious Disease Organization, Saskatoon, Sasatchewan.
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MeSH Terms
Anti-Bacterial Agents / pharmacology
Bacterial Outer Membrane Proteins / biosynthesis
Blood Bactericidal Activity
Chickens / microbiology*
Drug Resistance, Microbial
Escherichia coli / classification*,  drug effects,  pathogenicity,  physiology
Escherichia coli Infections / microbiology,  veterinary*
Hydroxamic Acids / metabolism
Poultry Diseases / microbiology*
Serotyping / veterinary
Siderophores / biosynthesis
Turkeys / microbiology*
Reg. No./Substance:
0/Anti-Bacterial Agents; 0/Bacterial Outer Membrane Proteins; 0/Hydroxamic Acids; 0/Siderophores; 26198-65-2/aerobactin

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