title: [Ecovariant differences of Escherichia coli strains with respect to colicinogenicity and colicin resistance].
abstract: The analysis of 173 Escherichia coli strains, isolated from different sources, for colicinogenicity and colicin resistance revealed that frequency of these signs increased in the following order: water in open reservoirs, intestine, extraintestinal localizations. In most cases resistance to 5 or more bacterial colicins was due to the absence of the corresponding receptors to colicins. Colicin resistance and colicinogenicity render E. coli selective advantages under the conditions of intestinal microbiocenosis.
authors.affiliation: Research Institute of Cellular and Intracellular Symbiosis of the Urals Branch of the Russian Academy of Sciences, State Medical Academy, Orenburg, Russia.
authors.forename: V A
authors.initials: VA
authors.lastname: Gritsenko
authors.forename: I E
authors.initials: IE
authors.lastname: Liashenko
mesh_terms: D002648:Child; D003087:Colicins / Q000096:biosynthesis / Q000494:pharmacology*; D004926:Escherichia coli / Q000145:classification* / Q000187:drug effects / Q000378:metabolism; D006801:Humans
chemical_list: D003087:Colicins