title: Immuno-electronmicroscopic demonstration of capsules on group-B streptococci of new serotypes and type candidates.
abstract: The location of type polysaccharides on the cells of reference strains of group-B streptococci of serotypes IV and V and new type candidates NT6 and 7271 was investigated by electronmicroscopy of the bacteria after incubation with homologous type-specific antiserum. A distinct capsular layer was found on the surface of the cells of all these strains. Sialic acid, an integral part of all the conventional type polysaccharides of group-B streptococci, was also detected in all the strains examined.
authors.affiliation: Department of Electron Microscopy, Institute of Hygiene and Epidemiology, Prague, Czechoslovakia.
authors.forename: M
authors.initials: M
authors.lastname: Rýc
authors.forename: J
authors.initials: J
authors.lastname: Jelínková
authors.forename: J
authors.initials: J
authors.lastname: Motlová
authors.forename: M
authors.initials: M
authors.lastname: Wagner
mesh_terms: D007158:Immunologic Techniques; D008854:Microscopy, Electron; D011135:Polysaccharides, Bacterial / Q000032:analysis* / Q000276:immunology; D012703:Serotyping; D012794:Sialic Acids / Q000032:analysis; D013292:Streptococcus agalactiae / Q000032:analysis* / Q000145:classification / Q000276:immunology / Q000648:ultrastructure
chemical_list: D011135:Polysaccharides, Bacterial; D012794:Sialic Acids