[A contribution to the nomenclature and classification of chlamydiae].

The results of molecular-genetic study of typical specimens of the genus Chlamydophila of the family Chlamydiaceae from the FSE FCTRSA collection of microorganisms are considered for the purpose of their taxonomy based on comparative analysis by the omp1-, omp2-, 16S rRNA-, and 23S rRNA-genes and by the presence of extrachromosomal plasmid with corresponding fragments of the genomes officially registered species of chlamydiae. According to the omp1-RFLP-AluI-profile, the Rostinovo-70, 250, PP-87, and KC-93 strains were characterized by new genotype of chlamydiae (genotype G). The new omp2-RFLP-AluI-profile of chlamydiae on carrying out the comparative analysis of Rostinovo-70, 250, PP-87 and KC-93 strains by omp2-gene was characterized.

[Morphologic changes in the kidneys of calves with respiratory mycoplasmosis].

The kidneys of 144 naturally diseased calves and those of 47 experimentally infected with Mycoplasma bovirhinis calves were investigated by histological and immunomorphological methods. The kidneys of calves with respiratory mycoplasmosis were often found to be involved in the pathological process, and at the initial stage of the disease and at its height prolifirative, membranous-prolifirative glomerulonephritis, and at later stages proliferative-fibroplastic glomerulonephritis developed. The secondary glanular kidney is a most often outcome of glomerulonephritis.