Phylogenetic typing and molecular detection of virulence factors of avian pathogenic Escherichia coli isolated from colibacillosis cases in Japanese quail

Colibacillosis Escherichia coli Japanese quail Phylogenetic group Virulence gene Abstract Colibacillosis caused by avian pathogenic Escherichia coli (APEC) is an economic threat to the poultry industry throughout the world. (ProQuest: ... denotes non-US-ASCII text omitted.) Introduction Avian pathog...

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Bibliographic Details
Published in:Veterinary research forum 2017-01, Vol.8 (1), p.55-58
Main Authors: Alizade, Hesam, Ghanbarpour, Reza, Jajarami, Maziar, Askari, Asma
Format: Article
Language:English
Subjects:
Adhesion
Aerobactin
Antigens
Bacteria
Cellulitis
Colibacillosis
Colleges & universities
Colonization
Deoxyribonucleic acid
DNA
E coli
Epithelium
Granuloma
Hemolysins
Infectious diseases
Intestine
Methods
Omphalitis
Original
Pathogenesis
Phylogenetics
Phylogeny
Pili
Poultry
Research centers
Tropical diseases
Urinary tract
Veterinary medicine
Virulence factors
Wildfowl
Yolk
Yolk sac
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Summary:Colibacillosis Escherichia coli Japanese quail Phylogenetic group Virulence gene Abstract Colibacillosis caused by avian pathogenic Escherichia coli (APEC) is an economic threat to the poultry industry throughout the world. (ProQuest: ... denotes non-US-ASCII text omitted.) Introduction Avian pathogenic Escherichia coli (APEC) are responsible for a variety of extra-intestinal pathogens in poultry, including colibacillosis, yolk sac infection, cellulitis, coli-granuloma and omphalitis.1 Although Japanese quail (Coturnix coturnix japonica) are reported as resistant birds against many diseases, APEC strains have been isolated from colisepticemic poultry with colibacillosis.1 Colibacillosis is an economic threat to the poultry industry which is a worldwide infection.2 Virulence factors (VFs) of extra-intestinal pathogenic E. coli (ExPEC) participate in colonization, cellular invasion and consequently reduction of the host immunity responses.3 Some of the VFs such as fimbrial antigens (P, AC/I, F1A and Stg), iron acquisition systems (aerobactin) and toxins (cytolethal distending toxins and hemolysins) may enhance the ability of E. coli to grow in the tissues of broilers.4 Expression of adhesions such as S and P fimbriae are considered to be an essential factor in pathogenesis of these strains because of their fundamental abilities for the adherence to the epithelium cells of birds.5 Stordeur et al. reported fimbrial and afimbrial adhesion genes normally expressed in extra-intestinal and intestinal strains isolated from birds.6 P fimbriae are an important step for the beginning and expansion of human urinary tract infections, but their role in pathogenesis of avian isolates has not been elucidated, completely.5 The E. coli strains are genetically diverse, and strains...
ISSN:2008-8140
2322-3618