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Description of Alloprevotella rava gen. nov., sp. nov., isolated from the human oral cavity, and reclassification of Prevotella tannerae Moore et al. 1994 as Alloprevotella tannerae gen. nov., comb. nov.

ABSTRACT: Five strains of anaerobic, gram-negative bacilli isolated from the human oral cavity were subjected to a comprehensive range of phenotypic and genotypic tests and were found to comprise a homogeneous group. Phylogenetic analysis of full-length 16S rRNA gene sequences showed that these strains represented a novel group within the family Prevotellaceae, and the most closely related species was Prevotella tannerae. P. tannerae and the novel taxon are deeply branched from the genus Prevotella, with sequence identities to the type strain of the type species of Prevotella, Prevotella melaninogenica, of 82.2 and 85.6?%, respectively. The novel genus Alloprevotella gen. nov. is proposed to accommodate the novel species Alloprevotella rava gen. nov., sp. nov. and the previously named Prevotella tannerae Moore et al. 1994 as Alloprevotella tannerae gen. nov., comb. nov. The type species is Alloprevotella tannerae. The type strain of Alloprevotella rava is 81/4-12(T) (?=?DSM 22548(T) ?=?CCUG 58091(T)) and the type strain of Alloprevotella tannerae is ATCC 51259(T) ?=?CCUG 34292(T) ?=?CIP 104476(T) ?=?NCTC 13073(T). Alloprevotella rava is weakly to moderately saccharolytic and produces moderate amounts of acetic acid and major amounts of succinic acid as end products of fermentation. Strains are sensitive to 20?% bile and hydrolyse gelatin. The principal cellular long-chain fatty acids are anteiso-C15?:?0, iso-C15?:?0, C16?:?0, iso-C17?:?0 and iso-C17?:?0 3-OH. The G+C content of the DNA of the type strain is 47 mol%.

PROVIDER: S-EPMC3709537 | BioStudies |

REPOSITORIES: biostudies

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