Electrophoretic Analysis of Lipopolysaccharides of Purple Nonsulfur Bacteria
نویسندگان
چکیده
منابع مشابه
Anaerobic growth of purple nonsulfur bacteria under dark conditions.
Purple nonsulfur photosynthetic bacteria were cultured anaerobically in the absence of light by a modification of the Hungate technique. Growth was slow and resembled that of fastidious anaerobes; on yeast extract-peptone-agar medium, each cell produced about 16 descendants in 15 to 20 days. Growth was stimulated by addition of ethyl alcohol, acetate and H(2), or pyruvate and H(2). Cells grown ...
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To find whether productivity of bacteriocin is controlled between different species under unusual cultural conditions, we used Rhodobacter capsulatus ATCC 17016 as a producer and Rhodopseudomonas palustris ATCC 17003 as an indicator. Rhodobacter capsulatus was cultured under aerobic conditions in the dark in Lascelles medium containing 0.3% Triton X-100. As a result, bacteriocin productivity in...
متن کاملRhodopseudomonas acidophila, sp. n., a new species of the budding purple nonsulfur bacteria.
A succinate-mineral salts medium of pH 5.2 provided selective enrichment conditions for Rhodomicrobium vannielii and for a new species belonging to the Athiorhodaceae, described herein as Rhodopseudomonas acidophila. Seven strains of the new species have been isolated from different sources in the United States and Germany. The cells are rod-shaped or ovoid, 1.0 to 1.3 mum wide and 2 to 5 mum l...
متن کاملPhotoresponses of the purple nonsulfur bacteria Rhodospirillum centenum and Rhodobacter sphaeroides.
We have measured the photoresponse of two purple nonsulfur bacteria, Rhodobacter sphaeroides and Rhodospirillum centenum, under defined conditions in a light beam propagating at 90 degrees to the optical axis of the microscope. This beam presented cells with a steep gradient of intensity perpendicular to the direction of propagation and a shallow gradient in the direction of light propagation. ...
متن کاملDifferences in Survivability under Starvation Conditions Among Four Species of Purple Nonsulfur Phototrophic Bacteria
Survivability under carbon-starvation conditions was investigated in four species of purple phototrophic bacteria: Rhodopseudomonas palustris, Rhodobacter sphaeroides, Rhodospirillum rubrum, and Rubrivivax gelatinosus. All these test organisms survived longer in the light than in the dark. ATP levels in the cultures were maintained in the light, which indicated that survivability was supported ...
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ژورنال
عنوان ژورنال: International Journal of Systematic Bacteriology
سال: 1988
ISSN: 0020-7713,1465-2102
DOI: 10.1099/00207713-38-2-157