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Occurrence and Characterization of »Avium‐Like« Mycobacteria Isolated from Animals in Sweden
Author(s) -
Bergman Rune,
Holmberg Olof
Publication year - 1979
Publication title -
acta pathologica microbiologica scandinavica section b microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.909
H-Index - 88
eISSN - 1600-0463
pISSN - 0304-131X
DOI - 10.1111/j.1699-0463.1979.tb02451.x
Subject(s) - serotype , pathogenicity , biology , microbiology and biotechnology , fowl , mycobacterium , strain (injury) , veterinary medicine , oleic acid , bacteria , medicine , ecology , genetics , biochemistry , anatomy
431 cultures of »avium‐like« mycobacteria (ALM) were isolated from wild and domestic animals during 1974–76 at the National Veterinary Institute, Stockholm. Of these. 50 isolates from pigs were studied by growth‐chromogenicity, pathogenicity. and biochemical tests. Furthermore, thin‐layer chromathography was performed, and on some isolates serotyping. All 50 isolates belonged to Runyon's group III and were pathogenic for chicken; none was capable of splitting oleic acid from Tween 80; 47 gave tellurite reduction within a period of three days; one was arylsulphatase‐positive after three days and a further four after 14 days. The biological and biochemical tests permit assignation of the 50 isolates to the M. avium‐intracellulare complex. The lipid patterns of the isolates examined were analysed by thin‐layer chromatography. Thirty‐five of the isolates showed a lipid pattern similar to that of A 2 of the fowl reference strain; three belonged to lipid type A I and four to A 3. Eight could not be typed. Of 22 isolates, 14 could be assigned to M. avium serotypes.