Isolation and characterization of plasmid DMA from Bacteroides strains isolated from the human oral cavity
- 1 June 1988
- journal article
- Published by Wiley in Oral Microbiology and Immunology
- Vol. 3 (2) , 72-76
- https://doi.org/10.1111/j.1399-302x.1988.tb00085.x
Abstract
A total of 134 Bacteroides strains isolated from the human oral cavity were examined for plasmid content. Plasmid DNA was isolated from 7 strains of black‐pigmented Bacteroides, including Bacteroides levii strains ATCC 29147 and JP2. All isolated Bacteroides plasmid DNA had a molecular mass of 5.9 M daltons and showed the same electrophoretic pattern when treated with restriction endonuclease. No positive correlation was found between plasmid DNA content and antibiotic resistance, bacteroiocinogenic activity or hemagglutinating activity.Keywords
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