Determination of P (F11) and F1 fimbriae of Escherichia coli isolated from avian cellulitis

Identification and Purification of F11 Fimbriae on Avian Pathogenic Escherichia coli

Purification and characterization of P fimbriae from an Escherichia coli strain isolated from a septicemic turkey.

A pap+ Escherichia coli isolate from a turkey with colisepticemia expressed P fimbriae with a major subunit of an apparent molecular mass of 18 kDa which reacted with anti-F11 serum. This fimbriae was purified and polyclonal antiserum was produced in rabbits. The N-terminal amino acid sequence of the major fimbrial subunit of the avian P fimbriae was identical to that of F11. On immunoblotting,...

ECOR phylotyping and determination of virulence genes in Escherichia coli isolates from pathological conditions of broiler chickens in poultry slaughter-houses of southeast of Iran

Avian pathogenic Escherichia coli (APEC) are responsible for wide ranges of extra-intestinal diseases in poultry including colibacillosis, cellulitis, coligranuloma and yolk sac infection. Numbers of virulence are considered important in the pathogenicity of these diseases. The aims of the present study were phylogenetic typing and virulence genes detection in Escherichia coli </em...

Frequency of selected virulence-associated genes in intestinal and extra-intestinal Escherichia coli isolates from chicken

Background: Although Escherichia coli (E. coli)is a part of intestinal normal microflora of warm-blooded animals, includingpoultry, outbreaks occur in poultry raised below standard sanitation and duringthe course of respiratory or immunosuppressive diseases. Avian pathogenic E.coli (APEC) harbors several genes associated with virulence andpathogenicity. APEC strains are responsible for some dis...

Molecular Study of Phase Variation of Type 1 Fimbriae in Uropathogenic Escherichia coli O44 Serotypes during Touching with Solid Surfaces

Background & Aims: Type 1 fimbriae is the most common adhesion factor in urine tract infection. In this Study, presence of virulence genes in isolated strains of uropathogenic E.Coli, O serotyping and molecular detection of phase variation of type 1 fimbriae were assessed during solid surfaces exposure. Methods: Isolated E.coli from urine samples of patients were serotyped by using serologic me...