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PubMedDate not supplied

[Use of molybdenum media with glycerin and admixtures of unassimilated polyols for differentiating actinomycetes].

Actinomycetes were cultivated in a medium containing from 0.15 to 0.2% of ammonium molybdate, glycerol and from 0.25 to 1% of polyol which was not assimilated by the cultures and inhibited the production of molybdenum blue in many actinomycetes. The cultures differed in their susceptibility to the inhibition by various polyols. There were not two polyols that would produce an identical effect on all of the cultures. Correlations were established in the action of polyols. The differences in the formation of molybdenum blue can be used for the differentiation and identification of actinomycetes to subdivide them into groups according to their sensitivity to inositol, mannitol, D-arabitol, xylitol, sorbitol, L-arabitol and dulcitol and according to their resistance to dulcitol (minimal, average and maximal resistance). The paper presents schemes for subdividing groups into subgroups and for establishing the properties.

Actinomycetales↗
PubMedDate not supplied

[Electron computer modeling of membrane structure and distribution of admixture particles in the lipid bilayer].

A simple molecular model of double lipid layer of the membrane is proposed. Equilibrium distribution of small hydrophilic particles between bilayer and contacting solution was studied by computer modeling. Connection between the concentration profile of the particles and its structural organization was considered. Special role of the bilayer central region was found. The results obtained qualitatively agree with the known experimental data.

Computers↗