Diversity of chromosomal genetic elements and gene identification in antibiotic-resistant strains of Streptococcus pneumoniae and Streptococcus bovis.
Antibiotic-resistant Streptococcus pneumoniae (26 strains) and Streptococcus bovis (28 strains), devoid of R plasmids, were examined for DNA-DNA homology to Tn916 and Tn3701. Tn916-like structures were found in 17 S. pneumoniae and 21 S. bovis strains. Tn916-modified structures were present in 6 S. pneumoniae and 2 S. bovis strains. Two strains of each species carried elements having a Tn3701-like composite structure. All these elements were chromosome-borne. No chromosomal elements were detected in 1 S. pneumoniae and 3 S. bovis strains.
Laboratoire des Staphylocoques et des Streptocoques, Institut Pasteur, Paris, France.
F
F
David
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G
de Céspèdes
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F
Delbos
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T
Horaud
D002876:Chromosomes, Bacterial; D004251:DNA Transposable Elements; D004352:Drug Resistance, Microbial / Q000235:genetics; D014644:Genetic Variation; D011815:R Factors / Q000235:genetics; D013045:Species Specificity; D016985:Streptococcus bovis / Q000235:genetics*; D013296:Streptococcus pneumoniae / Q000235:genetics*
D004251:DNA Transposable Elements