[Distribution of phage-resistant Pseudomonas aeruginosa strains]. 1985

I N Blokhina, and N I Ivanova, and V N Mazepa, and L A Kulakova, and A M Boronin

The sensitivity of a number of P. aeruginosa clinical strains to virulent bacteriophages has been studied. Phage-resistant strains have been found to constitute a considerable proportion among the tested P. aeruginosa strains. The strains under study fall into 19 groups differing in their sensitivity to the bacteriophages used in this investigation. The strains belonging to some groups are phenotypically identical to experimentally obtained P. aeruginosa phage-resistant mutants PAO. The use of bacteriophage mutants has made it possible to demonstrate that in most cases the resistance of P. aeruginosa natural strains to type phi k phages is due to disturbances in their adsorption, whereas their resistance to type phi m and phi mn phages is, seemingly, not linked with disturbances in their capacity for adsorption on the cell membranes of the bacteria.

UI MeSH Term Description Entries
D009154 Mutation Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations. Mutations
D010641 Phenotype The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment. Phenotypes
D011550 Pseudomonas aeruginosa A species of gram-negative, aerobic, rod-shaped bacteria commonly isolated from clinical specimens (wound, burn, and urinary tract infections). It is also found widely distributed in soil and water. P. aeruginosa is a major agent of nosocomial infection. Bacillus aeruginosus,Bacillus pyocyaneus,Bacterium aeruginosum,Bacterium pyocyaneum,Micrococcus pyocyaneus,Pseudomonas polycolor,Pseudomonas pyocyanea
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000327 Adsorption The adhesion of gases, liquids, or dissolved solids onto a surface. It includes adsorptive phenomena of bacteria and viruses onto surfaces as well. ABSORPTION into the substance may follow but not necessarily. Adsorptions
D001434 Bacteriophage Typing A technique of bacterial typing which differentiates between bacteria or strains of bacteria by their susceptibility to one or more bacteriophages. Phage Typing,Typing, Bacteriophage,Typing, Phage
D001435 Bacteriophages Viruses whose hosts are bacterial cells. Phages,Bacteriophage,Phage
D014774 Virulence The degree of pathogenicity within a group or species of microorganisms or viruses as indicated by case fatality rates and/or the ability of the organism to invade the tissues of the host. The pathogenic capacity of an organism is determined by its VIRULENCE FACTORS. Pathogenicity

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