1887

Abstract

A collection of 75 strains of (including all biovars and pathovars) and the type strains of (CFBP 4178) and (CFBP 3613) were studied by DNA–DNA hybridization, numerical taxonomy of 121 phenotypic characteristics, serology and 16S rRNA gene-based phylogenetic analyses. From analysis of 16S rRNA gene sequences, it was deduced that strains and CFBP 4178 formed a clade distinct from the genera and ; therefore, it is proposed to transfer all the strains to a novel genus, gen. nov. By DNA–DNA hybridization, the strains of were distributed among six genomic species: genomospecies 1 harbouring 16 strains of biovar 3 and four strains of biovar 8, genomospecies 2 harbouring 16 strains of biovar 3, genomospecies 3 harbouring two strains of biovar 6 and five strains of biovar 5, genomospecies 4 harbouring five strains of biovar 2, genomospecies 5 harbouring six strains of biovar 1, four strains of biovar 7 and five strains of biovar 9 and genomospecies 6 harbouring five strains of biovar 4 and CFBP 4178. Two strains of biovar 3 remained unclustered. Biochemical criteria, deduced from a numerical taxonomic study of phenotypic characteristics, and serological reactions allowed discrimination of the strains belonging to the six genomic species. Thus, it is proposed that the strains clustered in these six genomic species be assigned to the species sp. nov. (type strain CFBP 2052=NCPPB 2538), sp. nov. (type strain CFBP 1269=NCPPB 898), comb. nov. (subdivided into two biovars, bv. and bv. ), sp. nov. (type strain CFBP 2051=NCPPB 2976), sp. nov. (type strain CFBP 1200=NCPPB 453) and comb. nov., respectively.

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2005-07-01
2024-12-03
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