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. 1999 Oct;37(10):3167-70.
doi: 10.1128/JCM.37.10.3167-3170.1999.

Development of rRNA-based PCR assays for identification of Burkholderia cepacia complex isolates recovered from cystic fibrosis patients

J J LiPuma  1 , B J Dulaney, J D McMenamin, P W Whitby, T L Stull, T Coenye, P Vandamme
Affiliations

Development of rRNA-based PCR assays for identification of Burkholderia cepacia complex isolates recovered from cystic fibrosis patients

J J LiPuma et al. J Clin Microbiol. 1999 Oct.

Abstract

PCR assays targeting rRNA genes were developed to identify species (genomovars) within the Burkholderia cepacia complex. Each assay was tested with 177 bacterial isolates that also underwent taxonomic analysis by whole-cell protein profile. These isolates were from clinical and environmental sources and included 107 B. cepacia complex strains, 23 Burkholderia gladioli strains, 20 Ralstonia pickettii strains, 10 Pseudomonas aeruginosa strains, 8 Stenotrophomonas maltophilia strains, and 9 isolates belonging to nine other species. The sensitivity and specificity of the 16S rRNA-based assay for Burkholderia multivorans (genomovar II) were 100 and 99%, respectively; for Burkholderia vietnamiensis (genomovar V), sensitivity and specificity were 87 and 92%, respectively. An assay based on 16S and 23S rRNA gene analysis of B. cepacia ATCC 25416 (genomovar I) was useful in identifying genomovars I, III, and IV as a group (sensitivity, 100%, and specificity, 99%). Another assay, designed to be specific at the genus level, identified all but one of the Burkholderia and Ralstonia isolates tested (sensitivity, 99%, and specificity, 96%). The combined use of these assays offers a significant improvement over previously published PCR assays for B. cepacia.

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Figures

FIG. 1
FIG. 1
PCR analysis of B. cepacia complex type strains and related species. Lanes m, DNA markers; lanes a, primer pair RHG-F and RHG-R; lanes b, primer pair PC-SSF and PC-SSR; lanes c, primer pair BC-GII and BC-R; lanes d, primer pair BC-GV and BC-R. GIII, LMG 12614 (B. cepacia genomovar III); GII, LMG 14293 (B. multivorans); GV, LMG 10929T (B. vietnamiensis); Bg, B. gladioli; Rp, R. pickettii; Pa, P. aeruginosa.
FIG. 2
FIG. 2
Sensitivity and specificity of PCR assays. *, all 13 are B. multivorans.
See this image and copyright information in PMC

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