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. 1993 Aug;59(8):2743-5.
doi: 10.1128/aem.59.8.2743-2745.1993.

Detection of Listeria monocytogenes with a nonisotopic polymerase chain reaction-coupled ligase chain reaction assay

M Wiedmann  1 , F Barany, C A Batt
Affiliations

Detection of Listeria monocytogenes with a nonisotopic polymerase chain reaction-coupled ligase chain reaction assay

M Wiedmann et al. Appl Environ Microbiol. 1993 Aug.

Abstract

A polymerase chain reaction (PCR)-coupled ligase chain reaction (LCR) assay for the specific detection of Listeria monocytogenes (M. Wiedmann, J. Czajka, F. Barany, and C. A. Batt, Appl. Environ. Microbiol. 58:3443-3447, 1992) has been modified for detection of the LCR products with a nonisotopic readout. When a chemiluminescent or a colorimetric substrate for the nonisotopic detection of the LCR products was used, the PCR-coupled LCR gave a sensitivity of 10 CFU of L. monocytogenes. The detection method with the chemiluminescent substrate Lumi-Phos 530 permitted detection of the LCR products in less than 3 h, so that the whole assay can be completed within 10 h.

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