{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T20:40:41Z","timestamp":1792096841172,"version":"4.4.0"},"reference-count":19,"publisher":"Microbiology Society","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2005,1,1]]},"abstract":"<jats:p>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 <jats:italic>Actinomyces<\/jats:italic>, 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 <jats:italic>Actinomyces<\/jats:italic>, clustering within a group of species that includes <jats:italic>Actinomyces bovis<\/jats:italic>, the type species of the genus. Sequence divergence values of &gt;8\u200a% 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, <jats:italic>Actinomyces dentalis<\/jats:italic> sp. nov. The type strain is R18165<jats:sup>T<\/jats:sup> (=CCUG 48064<jats:sup>T<\/jats:sup>=CIP 108337<jats:sup>T<\/jats:sup>).<\/jats:p>","DOI":"10.1099\/ijs.0.63376-0","type":"journal-article","created":{"date-parts":[[2005,1,14]],"date-time":"2005-01-14T21:43:56Z","timestamp":1105739036000},"page":"427-431","source":"Crossref","is-referenced-by-count":25,"title":["Actinomyces dentalis sp. nov., from a human dental abscess"],"prefix":"10.1099","volume":"55","author":[{"given":"Val","family":"Hall","sequence":"first","affiliation":[{"name":"Anaerobe Reference Laboratory, NPHS Microbiology Cardiff, University Hospital of Wales, Cardiff CF14 4XW, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthew D.","family":"Collins","sequence":"additional","affiliation":[{"name":"School of Food Biosciences, University of Reading, Reading, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul A.","family":"Lawson","sequence":"additional","affiliation":[{"name":"School of Food Biosciences, University of Reading, Reading, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Enevold","family":"Falsen","sequence":"additional","affiliation":[{"name":"Culture Collection, Department of Clinical Bacteriology, University of G\u00f6teborg, G\u00f6teborg, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brian I.","family":"Duerden","sequence":"additional","affiliation":[{"name":"Anaerobe Reference Laboratory, NPHS Microbiology Cardiff, University Hospital of Wales, Cardiff CF14 4XW, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"345","reference":[{"key":"R1","doi-asserted-by":"crossref","first-page":"3399","DOI":"10.1128\/JCM.38.9.3399-3403.2000","article-title":"Characterisation of Actinomyces isolates from infected root canals of teeth: description of Actinomyces radicidentis sp","volume":"38","author":"Collins","year":"2000","journal-title":"nov. 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