[The biology of bacteria used to treat industrial sewage to remove heavy metals].

The content of heavy metals in the water bodies increases as a result of anthropogenic effects. Heavy metals exert toxical effect on hydrobionts. Involved into the trophic chain they can be the cause of grave human diseases.

[Lactic bacteria in the digestive tract of poultry].

Lactic bacteria predominate in the microflora of the digestive tract of chicken and turkey. They are represented mainly by Lactobacillus acidophilus, L. salivarius, L.

[Bacteria reducing chromium in nature and in effluents of industrial plants].

Bacteria capable of hexavalent chromium (Cr6+) reduction can be found in Cr6+-containing sewage and sediments of purification tanks of industrial plants. They cannot be detected in water and soil samples containing no chromium compounds. Bacteria reducing chromium belong to the genera Aeromonas, Escherichia, Pseudomonas and Enterobacter.

[Free mycolic acids of the cells of coryneform and Nocardia-like bacteria].

The composition of free mycolic acids was studied in the cells of Brevibacterium ammoniagenes ATCC 6871, B. flavum 22, B. stationis ATCC 14403, Corynebacterium divaricatum ATCC 14020 and Rhodococcus maris IMV 195.

[Taxonomic position of the lysine producer Brevibacterium flavum].

Brevibacterium flavum 22 and 22L producing lysine and glutamic acid should be reclassified as Corynebacterium glutamicum on the basis of their chemotaxonomic characteristics: the IV type of the cell wall, corynomycolic acids C32--C34, 57.8% of GC in DNA.