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Applied and Environmental Microbiology, December 2008, p. 7439-7441, Vol. 74, No. 23
0099-2240/08/$08.00+0     doi:10.1128/AEM.00949-08
Copyright © 2008, American Society for Microbiology. All Rights Reserved.

Seagulls of the Berlengas Natural Reserve of Portugal as Carriers of Fecal Escherichia coli Harboring CTX-M and TEM Extended-Spectrum Beta-Lactamases{triangledown}

Patricia Poeta,1,2,5 Hajer Radhouani,1,5 Gilberto Igrejas,3,4 Alexandre Gonçalves,1 Carlos Carvalho,3,4 Jorge Rodrigues,1,2 Laura Vinué,5 Sergio Somalo,5 and Carmen Torres5*

University of Trás-os-Montes and Alto Douro, Veterinary Science Department, Vila Real, Portugal,1 Center of Studies of Animal and Veterinary Sciences, Vila Real, Portugal,2 University of Trás-os-Montes and Alto Douro, Department of Genetics and Biotechnology, Vila Real, Portugal,3 Institute for Biotechnology and Bioengineering, Center of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal,4 Biochemistry and Molecular Biology Unit, University of La Rioja, Logroño, Spain5

Received 25 April 2008/ Accepted 28 September 2008

Escherichia coli isolates containing the following extended-spectrum beta-lactamases have been detected in 11 of 57 fecal samples (19.3%) in Berlengas Island seagulls: TEM-52 (eight isolates), CTX-M-1 (one isolate), CTX-M-14a (one isolate), and CTX-M-32 (one isolate). Most of the extended-spectrum beta-lactamase-positive isolates harbored class 1 or class 2 integrons, which included different antibiotic resistance gene cassettes.

* Corresponding author. Mailing address: Área de Bioquímica y Biología Molecular, Universidad de La Rioja, Madre de Dios 51, 26006 Logroño, Spain. Fax: 34-941299721. Phone: 34-941299750. E-mail: carmen.torres{at}unirioja.es

{triangledown} Published ahead of print on 3 October 2008.

Applied and Environmental Microbiology, December 2008, p. 7439-7441, Vol. 74, No. 23
0099-2240/08/$08.00+0     doi:10.1128/AEM.00949-08
Copyright © 2008, American Society for Microbiology. All Rights Reserved.





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