title: [Effect of growth conditions on electrophysical properties of Rhodobacter capsulatus PG cells].
abstract: Electrophysical characteristics of cells of the phototrophic bacterium Rhodobacter capsulatus PG grown in complete Hutner medium in light or dark were found to differ depending on the composition of their lipopolysaccharides (LPS). Under dark cultivation, the cells synthesized LPS with a shortened structure that determined the electrophoretic properties of cell surfaces. The observed decrease in the effective high-frequency electroconductivity of the dark-grown cells is assumed to be due to a decrease in the intracellular K+ concentration resulting from increased permeability of cytoplasmic membranes of the cells grown under these conditions.
authors.forename: S V
authors.initials: SV
authors.lastname: Zubova
authors.forename: A Iu
authors.initials: AIu
authors.lastname: Ivanov
authors.forename: I P
authors.initials: IP
authors.lastname: Prokhorenko
mesh_terms: D018929:Cell Culture Techniques; D002462:Cell Membrane / Q000502:physiology; D002463:Cell Membrane Permeability; D002473:Cell Wall / Q000737:chemistry / Q000502:physiology; D003470:Culture Media; D003624:Darkness; D004553:Electric Conductivity; D004586:Electrophoresis; D008027:Light; D008070:Lipopolysaccharides / Q000096:biosynthesis / Q000737:chemistry*; D011188:Potassium / Q000378:metabolism; D016354:Rhodobacter capsulatus / Q000737:chemistry* / Q000254:growth & development* / Q000528:radiation effects
chemical_list: D003470:Culture Media; D008070:Lipopolysaccharides; D011188:Potassium