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Volume 43, Issue 2

A numerical taxonomic study of the gram-positive anaerobic cocci No Access

Abstract

Summary

Clinical (101) and collection (26) strains of gram-positive anaerobic cocci were examined in conventional tests and pyrolysis mass spectrometry (PMS). Numerical classifications based upon conventional test reaction patterns (CTRPs) and PMS showed 27 and 22 clusters, respectively. Cross-tabulation of cluster membership in the two classifications showed excellent correlation, with the combined classifications showing clear groups corresponding to the currently recognised species and . Strains of and clustered together in a heterogeneous group of saccharolytic organisms. However, strains previously identified as were divided into three distinct groups in PMS, two of which differed only in indole-associated pyrolysis products. A further four groups and several single-member clusters were distinct from these species. PMS data supported the validity of identification by pre-formed enzyme profiles and confirmed that Hare group III is synonymous with , Hare group IV with , and the “ADH group” with . There is clearly a need for a taxonomic revision of the genus , which probably encompasses several generic groups.

  • Received:
  • Accepted:
  • Published Online:
© J. MED. MICROBIOL. 1995
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1995-08-01
2025-01-26
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/content/journal/jmm/10.1099/00222615-43-2-148
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A numerical taxonomic study of the gram-positive anaerobic cocci
J. Med. Microbiol. 43, 148 (1995); https://doi.org/10.1099/00222615-43-2-148
/content/journal/jmm/10.1099/00222615-43-2-148
/content/journal/jmm/10.1099/00222615-43-2-148
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