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Polymerase chain reaction for identification of human and porcine spirochaetes recovered from cases of intestinal spirochaetosis
Journal article   Peer reviewed

Polymerase chain reaction for identification of human and porcine spirochaetes recovered from cases of intestinal spirochaetosis

N.Y. Park, C.Y. Chung, A.J. McLaren, R.F. Atyeo and D.J. Hampson
FEMS Microbiology Letters, Vol.125(2-3), pp.225-229
1995
DOI: https://doi.org/10.1016/0378-1097(94)00502-I
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Abstract

A polymerase chain reaction (PCR) amplification of 16S rDNA was developed to identify spirochaetes recovered from cases of intestinal spirochaetosis in humans and pigs; these bacteria belong to a distinct genetic group of spirochaetes, with the proposed name 'Anguillina coli'. The PCR incorporated a universal eubacterial 16S rDNA sequencing primer (1492r), and a 21-base forward primer designed to include a nucleotide sequence specific for 'A. coli'. The PCR was used to correctly identify DNA extracted from 43 isolates of 'A. coli from humans and pigs, whilst no product was produced from Escherichia coli, or from other intestinal spirochaetes, including 38 isolates of Serpulina spp., and one each of Treponema succinifaciens and Brachyspira aalborgi. The amplification provided a rapid and simple means of identifying DNA from isolates of 'A. coli', and could be used on boiled whole 'A. coli' cells, with a detection limit equivalent to 2.5 X 102 cells. The reaction was used to detect and identify these spirochaetes from selective agar plates inoculated with stool specimens from infected pigs.

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