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L V Bogorov

Publications and source records attributed to L V Bogorov.

8 recordsLinked to original sources

[Macromolecular subunits on the surfaces of the cell wall of Thiocapsa roseopersicina].

A layer of fungiform macromolecular subunits was found on the surface of the cell wall of Thiocapsa roseopersicina, a purple sulphur bacterium, strain BBS. The cap of a particle has a diameter of 40 to 60 A; the stalk is 80 to 100 A long and 20 to 30 A thick. Under the conditions of nitrogen fixation and a low content of vitamin B12 (0.1 mcg/litre) in the cultural broth, a second layer of similar particles is formed over the first layer.

Cell Membrane↗

[Ultrastructure of Thiocapsa roseopersicina under various cultivation conditions].

The cells of the purple sulphur bacterium Thiocapsa roseopersicina, strain BBS, growing in the light and in the darkness, contain chromatophores of the normal vesicular type. The amount and dimensions of the vesicules in the cells depend on the composition of the medium and the conditions of cultivation. During anaerobic growth of the bacterium in the light in the medium with pyruvate, large cells appear with complicate invaginations of the cytoplasmic membrane. The cells may contain, besides drops of sulphur, polyphosphates, and poly-beta-hydroxybutyric acid, spherical inclusions of a fine-grain structure.

Aerobiosis↗