title: Plasmid DNA analysis by agarose gel electrophoresis on an epidemic-associated strain of trimethoprim resistant Shiga's bacillus from Gimira Wereda (Keffa administrative region, southwest Ethiopia).
abstract: A combination of genetic mating experiments and plasmid DNA analysis by gel electrophoresis was carried out on an epidemic-associated Shiga's bacillus with resistance type ACSSuTTp, isolated in 1983 from Gimira Wereda, Keffa Administrative Region, South West Ethiopia. The donor strain contained 9 plasmid species. Their sizes in megadaltons (Mdal) were: 120, 40, 35, 12.5, 6.0, 5.1, 4.3, 2.5 and 1.7. Analysis of Escherichia coli K12 transconjugants revealed that the 40, 35, and 4.3 Mdal plasmids coded for tetracyline-trimethoprim, ampicillin -chloramphenicol and streptomycin-sulphadiazine resistance respectively.
authors.forename: A
authors.initials: A
authors.lastname: Gebre-Yohannes
authors.forename: B S
authors.initials: BS
authors.lastname: Drasar
mesh_terms: D004269:DNA, Bacterial / Q000032:analysis*; D004405:Dysentery, Bacillary / Q000382:microbiology*; D004587:Electrophoresis, Agar Gel; D005002:Ethiopia; D006801:Humans; D011815:R Factors / Q000235:genetics*; D012762:Shigella dysenteriae / Q000235:genetics*; D014296:Trimethoprim Resistance / Q000235:genetics
chemical_list: D004269:DNA, Bacterial