title: Plasmid-determined alterations of Salmonella typhimurium lipopolysaccharides.
abstract: Salmonella typhimurium Rc902 infected with derepressed ColIb mutants gave rise to changes in the composition of bacterial lipopolysaccharides (LPS). Bacteria carrying ColIbdrd7, derepressed in transfer, exhibited a marked decrease in the content of all 0-side-chain sugars of LPS. Similar effect were found upon the introduction of R64-11, also derepressed in transfer. In LPS of S. typhimurium containing ColIbdrd2, derepressed in colicin synthesis, a decrease of abequose content associated with an increase of glucose level was observed. Bacteria carrying the wild-type ColIb, the revertant of a drd mutant to the wild type, or the non colicinogenic strain resulting from the elimination of ColIbdrd2, showed no changes in the sugar composition of LPS.
mesh_terms: D001435:Bacteriophages / Q000032:analysis; D003087:Colicins / Q000378:metabolism; D005111:Extrachromosomal Inheritance; D008070:Lipopolysaccharides / Q000032:analysis*; D009154:Mutation; D010957:Plasmids; D011135:Polysaccharides, Bacterial / Q000032:analysis*; D012486:Salmonella typhimurium / Q000032:analysis*; D014161:Transduction, Genetic
chemical_list: D003087:Colicins; D008070:Lipopolysaccharides; D011135:Polysaccharides, Bacterial