Results 91 to 100 of about 149 (121)
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Fumarate reduction systems in members of the family Rhodospirillaceae with different quinone types
Archives of Microbiology, 1988Nineteen established and one undesignated species of the Rhodospirillaceae were examined for fumarate reduction in connection with their quinone systems. The fumarate reductase activity with reduced methyl viologen (MVH) or FMNH2 as electron donor was found in membrane (chromatophore) preparations from phototrophically grown cells of all species ...
Akira Hiraishi, Hiraishi Akira
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Utilization of methanol by rhodospirillaceae
Archives of Microbiology, 1975Enrichment culture of organisms growing anaerobically in the light in methanol-bicarbonate medium resulted in isolation of strains of Rhodopseudomonas gelatinosa and Rhodopseudomonas acidophila. The pH optimum for growth on methanol for all strains tested was approximately one unit higher than for growth on carbon sources containing more than one ...
J R, Quayle, N, Pfennig
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Acetate metabolism in Rhodopseudomonas gelatinosa and several other Rhodospirillaceae
Archives of Microbiology, 1976When Rhodopseudomonas gelatinosa was grown on acetate aerobically in the dark both enzymes of the glyoxylate bypass, isocitrate lyase and malate synthase, could be detected. However, under anaerobic conditions in the light only isocitrate lyase, but not malate synthase, could be found.
H, Albers, G, Gottschalk
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Isolation of Members of the Family Rhodospirillaceae
1981The purple nonsulfur bacteria (Rhodospirillaceae) comprise different morphological types of photo-trophic bacteria that can photoassimilate simple organic compounds under anaerobic conditions. They are also capable of chemotrophic growth under aerobic conditions, but not all species develop under full atmospheric oxygen tension.
Hanno Biebl, Norbert Pfennig
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Regulatory aspects of inorganic nitrogen metabolism in the Rhodospirillaceae
Archives of Microbiology, 1982Regulatory aspects of the assimilation of inorganic nitrogen compounds (ammonia, nitrate, nitrogen) were studied in 12 strains belonging to the Rhodospirillaceae. All strains possessed an ammonium transport system, as demonstrated by 14C-methylammonium uptake.
Kassem Alef, Diethelm Kleiner
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Experientia, 1981
Lipopolysaccharides (LPS) from various Rhodopseudomonas and Rhodospirillum species were tested for their radioprotective efficiency against X-irradiation and for their influence on the growth of spleen colony forming units (CFU-s) in mice. The LPS from Rhodopseudomonas gelatinosa Dr2 gave a high survival rate.
A F, Stevenson, H, Mönig, J, Weckesser
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Lipopolysaccharides (LPS) from various Rhodopseudomonas and Rhodospirillum species were tested for their radioprotective efficiency against X-irradiation and for their influence on the growth of spleen colony forming units (CFU-s) in mice. The LPS from Rhodopseudomonas gelatinosa Dr2 gave a high survival rate.
A F, Stevenson, H, Mönig, J, Weckesser
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Sulfate activation in Rhodobacter sulfidophilus and other species of the Rhodospirillaceae
Archives of Microbiology, 1985Rhodobacter sulfidophilus, R. capsulatus, R. sphaeroides, Rhodospirillum rubrum, Rhodopseudomonas palustris, R. viridis and Rhodocyclus gelatinosus were found to be able to synthesize adenylylsulfate and 3′-phosphoadenylylsulfate from sulfate and ATP. The presence of ATP sulfurylase was proven for the soluble protein fractions of all these species. ADP
Bryan P. Cooper, Hans G. Tr�per
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In vivo inhibition of nitrogenase by hydroxylamine in Rhodospirillaceae Role of nitric oxide
Archives of Microbiology, 1992Rhodobacter capsulatus strains E1F1 and B10 and Rhodobacter sphaeroides DSM 158 did not use hydroxylamine as nitrogen source for growth but metabolized it mainly through the glutamine synthetase reaction. Hydroxylamine had a high toxicity for cells growing either under phototrophic or dark-aerobic conditions.
F. Javier Caballero +3 more
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