Popis: |
The results of the study of 65 Brucella strains isolated from myomorphous rodents in the Northern Caucasus are presented. The study was made with the aim of finding out additional characteristics for the identification of these strains. Using the main tests recommended by the FAO/WHO Subcommittee on the Taxonomy of Brucella, as well as some additional tests, we have revealed that the strains under study are very similar to B. suis. At the same time their capacity for agglutination with anti-melitensis monospecific serum, their high sensitivity to pyronin B, safranine T and gentian violet, their low urease activity and their oxidizing activity in respect to L-alanine, L-asparagine, L-glutamic acid, L-arginine, DL-ornithine, DL-citrullin and L-livin make it possible to consider them the fifth independent biotype of B. suis. |