@article{mbs:/content/journal/ijsem/10.1099/ijs.0.63376-0, author = "Hall, Val and Collins, Matthew D. and Lawson, Paul A. and Falsen, Enevold and Duerden, Brian I.", title = "Actinomyces dentalis sp. nov., from a human dental abscess", journal= "International Journal of Systematic and Evolutionary Microbiology", year = "2005", volume = "55", number = "1", pages = "427-431", doi = "https://doi.org/10.1099/ijs.0.63376-0", url = "https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.63376-0", publisher = "Microbiology Society", issn = "1466-5034", type = "Journal Article", abstract = "A previously undescribed filamentous, beaded, Gram-positive, rod-shaped bacterium was isolated from pus of a human dental abscess. Based on its cellular morphology and the results of biochemical testing the organism was tentatively identified as a member of the genus Actinomyces, but it did not correspond to any currently recognized species of this genus. Comparative 16S rRNA gene sequencing studies showed the bacterium represents a distinct subline within the genus Actinomyces, clustering within a group of species that includes Actinomyces bovis, the type species of the genus. Sequence divergence values of >8 % with other recognized species within this phylogenetic group clearly demonstrated that the organism represents a hitherto unknown species. Based on biochemical and molecular phylogenetic evidence, it is proposed that the unidentified organism recovered from a dental abscess be classified as a novel species, Actinomyces dentalis sp. nov. The type strain is R18165T (=CCUG 48064T=CIP 108337T).", }