Enzymatic activities of Legionella pneumophila and Legionella-like organisms
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چکیده
منابع مشابه
Enzymatic activities of Legionella pneumophila and Legionella-like organisms.
The API ZYM system was used to investigate enzymatic activities of Legionella pneumophila and other Legionella-like organisms. Leucine aminopeptidase, alkaline and acid phosphatase, butyrate and caprylate esterase, and phosphoamidase activities were consistently detected in all strains tested. No evidence of myristate lipase, trypsin, chymotrypsin, or glycosidase activity was found.
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Agarose gel electrophoresis was employed to screen nine strains of Legionella-like bacteria and one strain of Legionella pneumophila for the presence of extrachromosomal deoxyribonucleic acid. Cryptic plasmids with molecular weights ranging from 46.6 x 10(6) to 59.8 x 10(6) were found in three of the isolates examined.
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A simple, inexpensive slide agglutination test correctly identified the serogroup to which 38 Legionella pneumophilia strains belonged, and distinguished them from two atypical, Legionella-like organisms.
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ژورنال
عنوان ژورنال: Journal of Clinical Microbiology
سال: 1982
ISSN: 0095-1137,1098-660X
DOI: 10.1128/jcm.15.1.175-177.1982