[The new eubacterium Roseomonas baikalica sp. nov. isolated from core samples collected by deep-hole drilling of the bottom of Lake Baĭkal].

Microbiological analysis of samples of sedimentary rocks from various eras of the geological history of the Baikal rift has enabled us to isolate a large number of microorganisms that can be classified into new, previously undescribed species. The present work deals with the identification and study of the morphological, biochemical, and physiological properties of one such strain, Che 82, isolated from sample C-29 of 3.4-3.

[Consumption of hydrocarbons by psychrotolerant degrader strains].

Oil-oxidizing microorganisms have been sampled in various regions of Siberia and used in strain associations, which degrade n-alkanes of oil from various fields by 64-92% after 6 days of growth in a wide temperature range. These strains are salt-tolerant and psychrotolerant. They are compatible with aboriginal soil microflora.

[Study of the mutagenic activity of cadmium by the method of dominant lethal mutation].

Calculation of dominant lethal mutations was executed in intact female mouse, mated with male on 1 and 6 week after single intragastric ingestion maximum tolerated dose CdCl2 (2 mg of Cd per kg of body mass). The increase of total, pre- and postimplantation lethality was found within first 4 weeks of observation. This effect testifies the alteration of spermatogenesis cycle on late stages when reparation of DNA is absent.

[The first trial of treating opisthorchiasis with the Soviet preparation azinoks].

7 patients in the acute and 51 patients in the chronic stages of opisthorchiasis were treated with azynoks in daily dose 60 mg per kilo. The radical cure was achieved in 95.8 +/- 0.