[Activity of endopolygalacturonase in culture fluid of experimentally prepared polyploid cultures of Saccharomyces vini].

The action of colchicine solutions on a diploid Saccharomyces vini culture used in viniculture yielded three polyploid strains. The strains differ from the parent culture in their cell morphology and a higher endopolygalacturonase activity.

[Diagnostic significance of indices of kininogenesis in infectious-allergic myocarditis].

Three patterns of kininogenetic changes: enhanced (50% of patients), depressed (40%) and qualitatively-different (10%) kininogenesis, were identified through 3 measurements of blood kallikrein-kinin (BKK) activity by kininogenase techniques in patients with infectious allergic myocarditis and myocarditic cardiosclerosis. The intensity of individual phases of kininogenesis is conditioned by the activity of total plasma kallikrein, its conformation and the level of kallikrein inhibitors. During the activated kininogenesis phase, a direct relation can be seen between changes in the activity of the above-mentioned parameters and clinical severity of the disease.

[Mutagenic action of acenaphthene on haploid and diploid cultures of Candida scottii].

Acenaphthene used as vapour increases the frequency of morphological mutations as well as mutations yielding strains with a reduced activity of respiration in Candida scottii. The diploid culture has more mutants than the haploid culture. The frequency of mutants depends on the duration of acenaphthene action.