f Distribution of Plasmid Sequences in Avian and Mammalian Strains of Chlamydia psittaci
- Authors: MARGARET McCLENAGHAN, JULIET R. HONEYCOMBE, BOB J. BEVAN, ALAN J. HERRING
- First Published Online: 01 March 1988, Microbiology 134: 559-565, doi: 10.1099/00221287-134-3-559
- Subject: Genetics And Molecular Biology
- Issue Published:
SUMMARY: Plasmid DNA from an avian strain of Chlamydia psittaci was purified and estimated to be 7.9 kb in size using restriction endonuclease analysis. A 5.9 kb fragment of this plasmid was cloned, mapped and used to screen a range of chlamydial strains. Hybridizing DNA was absent from ovine abortion and arthritis isolates and also from the Cal 10 strain but related sequences were detected in C. psittaci strains of feline pneumonitis, guinea-pig inclusion conjunctivitis, ovine conjunctivitis and C. trachomatis serovar L2. The plasmid DNA from the feline strain was shown to have a distinct restriction endonuclease profile. Similar plasmid sequences were detected in all avian isolates tested: thus the clone may have a useful diagnostic role for the detection of the pathogen in its natural host and in zoonotic episodes.
© Society for General Microbiology, 1988 | Published by the Microbiology Society
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