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Broad-host-range lytic Erwinia phage Key with exopolysaccharide degrading activity.
Virus Res
May 2023
Department of Bacteriophage Molecular Genetics, D. K. Zabolotny Institute of Microbiology and Virology, the National Academy of Sciences (NAS) of Ukraine, Kyiv 03143, Ukraine.
In this study, the genome of the lytic broad-host-range phage Key infecting Erwinia amylovora, Erwinia horticola, and Pantoea agglomerans strains was characterized. Key phage has a 115,651 bp long double-stranded DNA genome with the G + C ratio of 39.03%, encoding 182 proteins and 27 tRNA genes.
View Article and Find Full Text PDFComplete genome sequence analysis of temperate Erwinia bacteriophages 49 and 59.
J Basic Microbiol
July 2019
Department of Bacteriophage Molecular Genetics, D.K. Zabolotny Institute of Microbiology and Virology of National Academy of Sciences of Ukraine, Kyiv, Ukraine.
To date, a small number of temperate phages are known to infect members of the genus Erwinia. In this study, the genomes of temperate phages vB_EhrS_49 and vB_EhrS_59 infecting Erwinia horticola, the causative agent of beech black bacteriosis in Ukraine, were sequenced and annotated. Their genomes reveal no significant similarity to that of any previously reported viruses of Enterobacteriaceae.
View Article and Find Full Text PDFAim: To study the phenotypic properties of isolated Erwinia sp. and collection «Erwinia horticola» strains for their identification.
Methods: The strains pathogenicity and aggressiveness was tested by an artificial infection of apple, pear buds and immature pear fruit.
Unlabelled: This paper is devoted to the phenomenon of morphological heterogeneity within the population of the temperate erwiniophage 59, which does not have analogies among other bacterial viruses.
Aim: To investigate the basic properties of erwiniophage 59 heteroge- neous population obtained from different isogenic strains of amilovora-like bacterium Erwinia "horticola" (Eho).
Methods: Erwiniophage 59 was obtained by propagation on its traditional host Eho 450, as well as on its three isogenic strains and a related bacterium E.
The study presents new insights into the process of interaction of T7-like bacteriophages FE44 and BA14 with lysogenic cells. It was demonstrated that single and double lysogens possess Abiphenotype regardless of genera, species and strain of bacteria that initially had normal phage sensitivity. Efficiency of plating of these phages is reduced by two orders of magnitude on monolysogens, whereas it decreases by 4-6 orders on bilysogens.
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