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Int J Syst Evol Microbiol 58 (2008), 1788-1791; DOI  10.1099/ijs.0.65656-0
© 2008 International Union of Microbiological Societies

Prevotella histicola sp. nov., isolated from the human oral cavity

Julia Downes1, Samuel J. Hooper2, Melanie J. Wilson2 and William G. Wade1

1 King's College London Dental Institute at Guy's, King's College and St Thomas' Hospitals, Infection Research Group, London SE1 9RT, UK
2 Cardiff University School of Dentistry, Heath Park, Cardiff CF14 4XY, UK

Correspondence
William G. Wade
william.wade{at}kcl.ac.uk

Three strains of anaerobic, variably pigmenting, Gram-negative bacilli isolated from human oral mucosal tissue were subjected to a comprehensive range of phenotypic and genotypic tests and were found to comprise a homogeneous group. 16S rRNA gene sequence analysis and DNA–DNA hybridization revealed that the strains constituted a novel group within the genus Prevotella, being most closely related to Prevotella melaninogenica and Prevotella veroralis. A novel species, Prevotella histicola sp. nov., is proposed to accommodate these strains. Prevotella histicola is saccharolytic and produces acetic acid and succinic acid as major end products of fermentation and trace to minor amounts of isovaleric acid and lactic acid. The G+C content of the DNA of the type strain is 43 mol%. The type strain of Prevotella histicola is T05-04T (=DSM 19854T=CCUG 55407T).

The GenBank/EMBL/DDBJ accession numbers for the 16S rRNA gene sequences of strains T05-04T, N12-20 and N19-30 are EU126661, EU126662 and EU130901, respectively.

An extended neighbour-joining phylogenetic tree and a summary of the characteristics of the novel species are available as supplementary material with the online version of this paper.






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