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Applied and Environmental Microbiology, December 2007, p. 7753-7756, Vol. 73, No. 23
0099-2240/07/$08.00+0     doi:10.1128/AEM.01228-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

Detection of Salmonella enterica Subpopulations by Phenotype Microarray Antibiotic Resistance Patterns{triangledown} ,{dagger}

Jean Guard-Bouldin,1* Cesar A. Morales,1 Jonathan G. Frye,2 Richard K. Gast,1 and Michael Musgrove1

U.S. Department of Agriculture, ESQRU,1 U.S. Department of Agriculture, BEAR, 950 College Station Road, Athens, Georgia 306052

Received 1 June 2007/ Accepted 26 September 2007

Three strains of Salmonella enterica serotype Enteritidis were compared to Salmonella enterica serotype Heidelberg, Salmonella enterica serotype Newport, and Salmonella enterica serovar Typhimurium for growth in the presence of 240 antibiotics arranged within a commercial high-throughput phenotype microarray. The results show that antibiotic resistances were different for subpopulations of serotype Enteritidis separated only by genetic drift.


* Corresponding author. Mailing address: U.S. Department of Agriculture, Agricultural Research Service, Egg Safety and Quality Research Unit, 950 College Station Road, Athens, GA 30605. Phone: (706) 546-3446. Fax: (706) 546-3035. E-mail: Jean.Guard.Bouldin{at}ars.usda.gov

{triangledown} Published ahead of print on 26 October 2007.

{dagger} Supplemental material for this article may be found at http://aem.asm.org/.


Applied and Environmental Microbiology, December 2007, p. 7753-7756, Vol. 73, No. 23
0099-2240/07/$08.00+0     doi:10.1128/AEM.01228-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.