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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Escherichia coli of poultry food origin as reservoir of sulphonamide resistance genes and integrons
International Journal of Food Microbiology, Volume 144, No. 3, Year 2011
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Description
The antimicrobial resistance phenotype and genotype, the flanking regions of sulphonamide resistance genes and the integrons were analyzed in 166 Escherichia coli isolates recovered from poultry meat in Tunisia. High percentages of resistance were detected to ampicillin, streptomycin, nalidixic acid, sulphonamide and tetracycline (66-95%), and lower percentages to gentamicin, amoxicillin-clavulanic acid and cefoxitin (1-4%). The blaTEM, tet(A)/tet(B), aph(3')-Ia, aac(6')-Ib-cr, aac(3)-II and cmlA genes were identified in 92, 82, 29, 2, 2 and 7 isolates, respectively. Class 1 and/or class 2 integrons were detected in 52% of E. coli isolates and five different gene cassette arrangements were identified in the variable regions of class 1 integrons, which included antimicrobial resistance determinants. Sixty-eight isolates contained the sul1 gene and 37 of them presented this gene into a class 1 integron structure. The sul3 gene was detected associated with non-classic class 1 integrons in 4 out of 46 sul3-positive isolates. The sul2 gene was detected in 66 isolates, 51 of them were linked to strA/B genes in seven different genetic structures. Seventy-three-per-cent of integron-positive isolates presented resistance to at least five different antimicrobial families versus 38.7% of integron-negative isolates. Our study highlights the role of commensal E. coli isolates from poultry meat as an important reservoir for sulphonamide resistance genes and integrons carrying antimicrobial resistance genes. © 2010 Elsevier B.V.
Authors & Co-Authors
Soufi, Leila
Tunisia, Tunis
Institut de Recherche Vétérinaire de Tunis
Spain, Logrono
Universidad de la Rioja
Sáenz, Yolanda
Spain, Logrono
Centro de Investigación Biomédica de la Rioja Cibir
Vinué, Laura
Spain, Logrono
Universidad de la Rioja
Abbassi, Mohamed Salah
Tunisia, Tunis
Institut de Recherche Vétérinaire de Tunis
Ruiz, E.
Spain, Logrono
Universidad de la Rioja
Zarazaga, Myriam
Spain, Logrono
Universidad de la Rioja
Ben Hassen, Assia B.
Tunisia, Tunis
Centre National de Greffe de Moelle Osseuse
Hammami, Salah
Tunisia, Tunis
Institut de Recherche Vétérinaire de Tunis
Tunisia, Tunis
National Center of Zoosanitary Vigilance
Torres, Carmen
Spain, Logrono
Universidad de la Rioja
Spain, Logrono
Centro de Investigación Biomédica de la Rioja Cibir
Statistics
Citations: 76
Authors: 9
Affiliations: 5
Identifiers
Doi:
10.1016/j.ijfoodmicro.2010.11.008
ISSN:
01681605
Research Areas
Food Security
Genetics And Genomics
Study Locations
Tunisia