A pyrolysis-mass spectrometry study of Corynebacterium spp

Journal of Medical Microbiology
J M HindmarchB I Duerden

Abstract

Clinical (66) and collection (38) strains of Corynebacterium spp., including C. jeikeium and CDC group D2, and of Listeria monocytogenes were examined. Conventional characters used in species identification were assessed by a microbiochemical method, and pyrolysis-mass spectrometry (Py-MS) was performed with a Horizon Instruments PYMS 200X. Classification based on Py-MS data yielded clusters that corresponded with species identification and classification groups from conventional data. One small group of clinical strains, homogeneous in conventional tests and Py-MS, comprised isolates from sputum samples from patients undergoing ventilation; they were similar to collection strains of C. renale and C. striatum; the latter species has been implicated in chest infection. Another group, similar to C. minutissimum in both systems, comprised clinical strains isolated from urogenital specimens. L. monocytogenes strains were clearly distinct from Corynebacterium spp. Groups comprising CDC D2 strains and C. jeikeium were resolved, and were similar to other Corynebacterium spp. Two collection strains of C. xerosis were distinct in conventional tests and Py-MS.

Citations

Jan 1, 1997·Zentralblatt Für Bakteriologie : International Journal of Medical Microbiology·M E Trujillo, M Goodfellow
Jan 1, 1997·Zentralblatt Für Bakteriologie : International Journal of Medical Microbiology·R M JacksonJ T Magee
Jun 20, 2008·Journal of Clinical Microbiology·Robert P RennieAnn Krilcich
Jan 1, 1993·Antonie van Leeuwenhoek·J T MageeS K Jackson
Jan 1, 1994·European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology·V PeirisC Bennett
Jan 1, 1997·Zentralblatt Für Bakteriologie : International Journal of Medical Microbiology·J T MageeT G Winstanley
Jan 1, 1997·Zentralblatt Für Bakteriologie : International Journal of Medical Microbiology·M GoodfellowP R Sisson
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Mar 1, 1993·FEMS Immunology and Medical Microbiology·B I DuerdenL Goodwin
Feb 25, 1999·Letters in Applied Microbiology·R E Sherburn, P J Large

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