title: Streptococcus fryi sp. nov., a novel species with Lancefield group M antigens.
abstract: The taxonomic characteristics of β-hemolytic streptococcal strains that reacted with Lancefield group M antisera were investigated. Group M streptococci have not been proposed as a species to date. Four strains of the group M streptococci isolated from dog were located within the pyogenic group of the genus Streptococcus on 16S rRNA gene-based phylogenetic analysis; the group M strains were located a short distance away from all other members of the group. The homology values of 16S rRNA gene sequences between group M strains and all other streptococci were<95.6%. Group M strains exhibited low levels of DNA-DNA homology to other streptococcal species. Some biochemical traits, such as β-galactosidase activity and acid production from glycogen, could distinguish these group M strains from other closely related species. Thus, these strains are proposed to constitute a new species -Streptococcus fryi sp. nov. The type strain is PAGU 653(T) (=NCTC 10235(T)=JCM 16387(T)).
authors.affiliation: Department of Microbiology, Aichi-gakuin University, School of Pharmacy, Nagoya, Japan.
authors.forename: Junko
authors.initials: J
authors.lastname: Tomida
authors.forename: Susanne
authors.initials: S
authors.lastname: Sauer
authors.forename: Yuji
authors.initials: Y
authors.lastname: Morita
authors.forename: Takayuki
authors.initials: T
authors.lastname: Ezaki
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Kawamura
mesh_terms: D000818:Animals; D000942:Antigens, Bacterial / Q000235:genetics / Q000276:immunology; D015373:Bacterial Typing Techniques; D004269:DNA, Bacterial / Q000235:genetics; D004285:Dogs; D006801:Humans; D008969:Molecular Sequence Data; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D013290:Streptococcal Infections / Q000382:microbiology* / Q000662:veterinary*; D013291:Streptococcus / Q000145:classification* / Q000235:genetics / Q000276:immunology / Q000302:isolation & purification*
chemical_list: D000942:Antigens, Bacterial; D004269:DNA, Bacterial; D012336:RNA, Ribosomal, 16S