| 16s rrna gene similarities indicate that hallella seregens (moore and moore) and mitsuokella dentalis (haapsalo et al.) are genealogically highly related and are members of the genus prevotella: emended description of the genus prevotella (shah and collins) and description of prevotella dentalis comb. nov. | because of similarities in the cellular fatty acid compositions of hallella seregens and mitsuokella dentalis, we determined the 16s rrna gene sequences of the type strains of these species to assess their relationship. a very high level of sequence relatedness (approximately 99.8%) was found between h. seregens and m. dentalis, indicating that these species are genealogically closely related. a comparative sequence analysis revealed that these two species are members of the genus prevotella and ... | 1995 | 7547307 |
| oribaculum catoniae gen. nov., sp. nov.; catonella morbi gen. nov., sp. nov.; hallella seregens gen. nov., sp. nov.; johnsonella ignava gen. nov., sp. nov.; and dialister pneumosintes gen. nov., comb. nov., nom. rev., anaerobic gram-negative bacilli from the human gingival crevice. | the following four new species of anaerobic gram-negative bacilli isolated from the human gingival crevice are described: oribaculum catoniae, with atcc 51270 as the type strain; catonella morbi, with atcc 51271 as the type strain; hallella seregens, with atcc 51272 as the type strain; and johnsonella ignava, with atcc 51276 as the type strain. c. morbi is associated with periodontitis. h. seregens and j. ignava are associated with gingivitis and periodontitis. o. catoniae has been isolated from ... | 1994 | 8186083 |
| recently described clinically important anaerobic bacteria: taxonomic aspects and update. | a new method of identifying bacteria, phylogenetic 16s rrna sequencing, has led to major reorganizations among most genera of anaerobic bacteria. the pigmented prevotella species now comprise seven species including p. nigrescens and p. tannerae; p. intermedia/p. nigrescens-like organisms await inclusion. the former mitsuokella dentalis and hallella seregens were transferred to prevotella as one species, p. dentalis. p. enoeca is a new nonpigmenting prevotella. the genus porphyromonas currently ... | 1997 | 9310640 |