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  • Title: [Bacteriophage phi297--the new species of temperate phages Pseudomonas aeruginosa with a mosaic genome: potential use in phagotherapy].
    Author: Burkal'tseva MV, Krylov SV, Kropinskiĭ AM, Pletneva EA, Shaburova OV, Krylov VN.
    Journal: Genetika; 2011 Jul; 47(7):900-4. PubMed ID: 21938953.
    Abstract:
    The genome of halo-forming temperate Pseudomonas aeruginosa phage phi297 and lytic activity of its virulent mutant were studied. A mosaic structure was revealed for phi297 genome by its complete sequencing. The phi97 genome was partly homologous to the genomes of phages D3 and F116. High lytic activity was assumed for temperate P. aeruginosa bacteriophage phi297 on the basis of morphological features of negative colonies. Virulent mutant phi297vir, which was capable oflysing bacteria, while the wild-type phage induced lysogeny, was isolated. Lytic activity was compared for phi297 and the phages from commercial mixtures of two manufacturers (facilities of Nizhnii Novgorod and Perm'). Phage phi297 caused lysis of the mutant PAO1 bacteria that were resistant to the phages from commercial preparations, but the lystic activity spectrum of phi297 was narrower that the spectra of the commercial phages. The use of nonreverting virulent mutants of certain temperate bacteriophages was proposed for the treatment of P. aeruginosa infections.
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