title: [Morphology of the bifidobacteria by light and electron microscopy and their biological properties].
abstract: The morphology and the acid-producing, antagonistic and enzymatic activity of the strains of bifidobacteria isolated from the intestine of adults and children were studied. Bifidobacteria showed a considerable polymorphism, all the strains were antagonistically active. The strains isolated from adults were found to have greater acid-producing activity; the predominant species were B. longum and B. adolescentis, and in children B. bifidum were also isolated. The characteristic feature of B. longum strains was the presence of a slime-like layer and formations resembling bubbles around bacterial cells. The stains with greater physiological activity were found to have an extensive mesosomal complex, as well as a great number of volutin granules.
mesh_terms: D000191:Actinomycetaceae / Q000166:cytology* / Q000378:metabolism; D000328:Adult; D000898:Antibiosis; D001695:Biology; D003470:Culture Media; D004789:Enzyme Activation; D006801:Humans; D007223:Infant; D007422:Intestines / Q000382:microbiology; D008854:Microscopy, Electron; D011110:Polymorphism, Genetic; D013997:Time Factors
chemical_list: D003470:Culture Media
vernacular_title: Morfologiia bifidobakteriĭ na svetoopticheskom i élektronno-mikroskopicheskom urovne i ikh biologicheskie svoĭstva.