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Journal of Clinical Microbiology, Mar 1996, 537-542, Vol 34, No. 3
D Dymock, AJ Weightman, C Scully and WG Wade
The microflora associated with three dentoalveolar abscesses was determined
by cultural and molecular methods. 16S rRNA genes were randomly amplified
by means of conserved eubacterial primers and cloned. Restriction fragment
length polymorphism analysis of the clones and amplified genes encoding 16S
rRNA from the cultured bacteria was used to detect putative unculturable
bacteria. Clones representative of five predominant groups of uncultured
organisms were sequenced. Two were identified as Porphyromonas gingivalis
and Prevotella oris, and one was found to be closely related to
Peptostreptococcus micros. The remaining two clones did not correspond to
known, previously sequenced organisms. One was related to Zoogloea
ramigera, a species of aerobic waterborne organisms, while the other was
distantly related to the genus Prevotella. This study has demonstrated the
possibility of the characterization of microflora associated with human
infection by molecular methods without the inherent biases of culture.
Copyright © 1996 by the American Society for Microbiology. All rights reserved.
Molecular analysis of microflora associated with dentoalveolar abscesses
Department of Oral and Dental Science, University of Bristol, United Kingdom.
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