Actinobacteria possessing antimicrobial and antioxidant activities isolated from the pollen of scots pine (Pinus sylvestris) grown on the Baikal shore.

Isolated ecosystems existing under specific environmental conditions have been shown to be promising sources of new strains of actinobacteria. The taiga forest of Baikal Siberia has not been well studied, and its actinobacterial population remains uncharacterized. The proximity between the huge water mass of Lake Baikal and high mountain ranges influences the structure and diversity of the plant world in Siberia.

[Branched glucan from the fruiting bodies of Piptoporus betulinus (Bull.:Fr.) Karst].

A new glucan, namely, piptoporane I, with a molecular mass of 270 kDa was isolated from fruiting bodies of Piptoporus betulinis (Bull.:Fr.) Karst.

[Alkali-soluble polysaccharides of Laetiporus sulphureus (Bull.: Fr.) Murr fruit bodies].

Alkali-soluble polysaccharides have been extracted from Laetiporus Sulphureus (Bull.: Fr.) Murr fruit bodies with a yield of 42.

[Water-soluble endopolysaccharides from the fruiting bodies of Laetiporus sulphureus (Bull.: Fr.) Murr].

Endopolysaccharides represented by glucans, galactans, and glycoproteins were isolated from the fruiting bodies of the sulfur shelf (Laetiporus sulphureus (Bull.:Fr.) Murr), which were obtained by the natural-plantation method.

[The chemico-pharmacological patterns in the action of plants from the family of Pyrolaceae].

The effect of leaf decoctions of three plants of the Pyrolaceae family, namely, umbrella wintergreen, one-side ortilia, and round-leaf Pyrola was studied in rat experiments. All plants under study were found to contain approximately equal amounts of tannins and arbutin glycoside. Their concentration was comparable though rather lower than in common bearberry, a well-known plant with diuretic and antiseptic activity.