Plasmids of serogroup 1 strains of Legionella pneumophila
Current Microbiology(1982)
Abstract
Twelve strains ofLegionella pneumophila were tested for the presence of plasmid DNA. Three strains, belonging to serogroup 1, had large plasmids of 83.8×106 daltons, as determined by electron microscopy. A fourth strain, also from serogroup 1, had a similar large plasmid in addition to a smaller plasmid. Restriction analysis of plasmid DNA isolated from the strains with a single size plasmid indicated that the plasmids were structurally very similar. The biologic functions of these plasmids are yet to be determined.
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Key words
Microscopy,Electron Microscopy,Biologic Function,Restriction Analysis,Large Plasmid
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