title: [Effect of chitosan derivatives on the reproduction of Coliphages T2 and T7].
abstract: The effect of chitosan derivatives with different degrees of polymerization and deamination, as well as of chitosan 6-O-sulfate and chitosan N-succinate-6-O-sulfate, on the reproduction of coliphages T2 and T7 in Escherichia coli and on the growth of this bacterium was studied. Chitosan derivatives decreased the yield of coliphages and exhibited bactericidal activity. The efficiency of inhibition of viral infection and the bactericidal activity of chitosan were found to be dependent on the degree of its polymerization. At the same time, there was no correlation between the degree of chitosan deamination and the extent of inhibition of viral infection. Anionic chitosan derivatives virtually did not possess antiviral or bactericidal activity. It is assumed that chitosan blocks some stages of phage reproduction. The decrease in the phage-producing ability of E. coli may also be due to the bactericidal effect of chitosan.
authors.affiliation: Institute of Microbiology, Russian Academy of Sciences, Moscow, Russia.
authors.forename: Z M
authors.initials: ZM
authors.lastname: Kochkina
authors.forename: S N
authors.initials: SN
authors.lastname: Chirkov
mesh_terms: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents / Q000737:chemistry / Q000494:pharmacology*; D017123:Bacteriophage T7 / Q000187:drug effects* / Q000254:growth & development*; D002686:Chitin / Q000031:analogs & derivatives* / Q000737:chemistry / Q000494:pharmacology; D048271:Chitosan; D004926:Escherichia coli / Q000821:virology; D017900:Myoviridae / Q000187:drug effects* / Q000254:growth & development*; D014779:Virus Replication / Q000187:drug effects
chemical_list: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents; D002686:Chitin; D048271:Chitosan