Characterization of Actinomyces turicensis and Actinomyces radingae strains from human clinical samples

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Abstract
Whole-organism protein electrophoresis was used to compare and group unidentified coryneform bacteria resembling Gardnerella vaginalis and various Actinomyces and Arcanobacterium species. The obtained clusters of strains were further characterized by whole-cell fatty acid analysis and a variety of biochemical tests. Species-specific oligonucleotide probes based on 16S rRNA gene sequences were designed. The results demonstrate that the majority of the isolates belonged to Actinomyces turicensis; the other strains belonged to Actinomyces radingae. The descriptions of both species are emended.