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Journal of Clinical Microbiology, April 2001, p. 1272-1278, Vol. 39, No. 4
Department of Agriculture and Rural
Development, Veterinary Sciences Division, Stormont, Belfast BT4
3SD, Northern Ireland
Received 25 May 2000/Returned for modification 29 August
2000/Accepted 31 December 2000
Nucleic acid sequence capture extraction was coupled with
LightCycler PCR amplification and product detection using real-time fluorescence for rapid, definitive detection of Mycobacterium bovis in lymph node specimens from 38 cattle with bovine
tuberculosis lesions. PCR amplification of sequence-captured DNA
using both a conventional heating block thermocycler and a LightCycler
thermocycler was compared with culture and histopathological analyses.
Conventional PCR enabled detection of 26 of 28 culture-positive
specimens (93%) in approximately 9 h, and the LightCycler PCR
detected 20 of 28 culture-positive specimens (71%) in only 30 min.
Specific confirmation of Mycobacterium tuberculosis
complex DNA was achieved by LightCycler PCR amplification using Syb
Green 1 and an M. tuberculosis complex-specific Cy5-labeled fluorescence resonance energy transfer probe. The system
described here enabled rapid and specific laboratory confirmation of
bovine tuberculosis, and this is the first report of the detection of
M. bovis in tissues using LightCycler PCR. The
fluorescence technology used in the study has potential to allow
development of a high-throughput molecular diagnostic test for bovine tuberculosis.
0095-1137/01/$04.00+0 DOI: 10.1128/JCM.39.4.1272-1278.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
Detection of Mycobacterium bovis in
Bovine Clinical Specimens Using Real-Time Fluorescence and Fluorescence
Resonance Energy Transfer Probe Rapid-Cycle PCR
*
Corresponding author. Mailing address: Department of
Agriculture and Rural Development, Veterinary Sciences Division, Stoney Rd., Stormont, Belfast BT4 3SD, Northern Ireland. Phone: 44 (0) 2890 525719. Fax: 44 (0) 2890 525745. E-mail:
malcolm.taylor{at}dardni.gov.uk.
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