Molecular analysis of Salmonella isolates recovered from processed Turkey carcasses.
This study was carried out to determine the prevalence of some virulence characteristics associated with Salmonella isolates recovered from processed turkey carcasses in the Midwestern region of the United States. A total of 94 Salmonella isolates recovered from turkey carcasses from two processing plants (A and B) were examined to determine the prevalence of invA, pagC, and spvC genes. Bioassays also were used to evaluate aerobactin and colicin production. All isolates (100%) were positive for the presence of invA and pagC but were negative for spvC. Overall, 19.1% of all isolates tested were positive for aerobactin production, and 25.5% of all isolates were positive for colicin. Aerobactin and colicin production differed among isolates recovered from the two plants; more isolates from plant B produced these compounds. The Salmonella isolates examined in this study possess significant potential for causing human illness.
Olah
Pamela A
PA
Great Plains Institute of Food Safety, Department of Veterinary and Microbiological Sciences, North Dakota State University, Fargo, North Dakota 58105, USA.
Sherwood
Julie S
JS
Logue
Catherine M
CM
D000818:Animals; D001426:Bacterial Proteins / Q000302:isolation & purification; D003087:Colicins / Q000378:metabolism; D005506:Food Contamination / Q000032:analysis*; D005516:Food Microbiology; D005525:Food-Processing Industry; D005798:Genes, Bacterial; D006877:Hydroxamic Acids / Q000378:metabolism; D008565:Membrane Proteins / Q000302:isolation & purification; D015146:Midwestern United States; D012475:Salmonella / Q000235:genetics* / Q000302:isolation & purification* / Q000472:pathogenicity; D014422:Turkeys / Q000382:microbiology*; D014774:Virulence / Q000235:genetics
D001426:Bacterial Proteins; D003087:Colicins; D006877:Hydroxamic Acids; D008565:Membrane Proteins; C066766:pagC protein, Salmonella typhimurium; C075518:invA protein, Bacteria; C031819:aerobactin