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  • Vpliv prisotnosti zunajceličnih polisaharidov na občutljivost celic Lactococcus lactis za bakteriofagno okužbo = Effect of exopolysaccharides presence on sensitivity of Lactococcus lactis cells for bacteriophage infection
    Miklič, Andreja ; Rogelj, Irena, 1955-
    Several lactic acid bacteria produce exopolysacharides (EPS) with different composition and structure. EPS are believed to play a role in the protection of the microbial cell against desiccation, ... phagocytosis, antibiotics or toxic compounds and phage attack. The effect of EPS of seventeen strains of Lactococcus lactis, isolated from starter cultures in three Slovenian dairy plants, on bacteriophage adsorption was studied. In order to determine the possible influence of EPS presence on bacteriophage adsorption, we treated cells with different chemical agents. After washing the cells with 25 mM NaOH,most of isolates were susceptible for more bacteriophages as before. EPS of studied isolates consisted mainlz from galactose, glucose and xylose. The highest concentration of polysaccharides was detected in PT19 isolate (galactose 130.6 M and xzlose 146.9 M), which was susceptible only to FPT19 phage. In the future we will try to confirm the presumption that isolates MB18, KR7, PT4, PT13 and PT19 produce EPS which mask receptors for phage adsorption.
    Vir: Zbornik Biotehniške fakultete Univerze v Ljubljani. Kmetijstvo. Zootehnika = Research reports [of the] Biotechnical Faculty University of Ljubljana. Agricultural issue. Zootechnica. - ISSN 1408-3434 (Letn. 82, št. 1, okt. 2003, str. 4-15)
    Vrsta gradiva - članek, sestavni del
    Leto - 2003
    Jezik - slovenski
    COBISS.SI-ID - 1516424

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