Department of Microbiology, University of Barcelona, Diagonal 645, Annex, Floor 0, 08028 Barcelona, Spain.
Appl Environ Microbiol. 2011 May;77(10):3536-40. doi: 10.1128/AEM.02703-10. Epub 2011 Mar 25.
Stx bacteriophages in 68 samples of beef and salad were quantified by real-time quantitative PCR (qPCR). Stx phages from the samples were propagated in Escherichia coli C600, E. coli O157:H7, and Shigella strains and further quantified. Fifty percent of the samples carried infectious Stx phages that were isolated from plaques generated by lysis.
对 68 份牛肉和沙拉样本中的 Stx 噬菌体进行了实时定量 PCR(qPCR)定量。从样本中提取的 Stx 噬菌体在大肠杆菌 C600、大肠杆菌 O157:H7 和志贺氏菌菌株中繁殖,并进一步定量。50%的样本携带可分离的感染性 Stx 噬菌体,这些噬菌体是由裂解形成的噬菌斑中分离得到的。