Results 181 to 190 of about 19,478 (216)

Nitrogen assimilation in Rhodopseudomonas acidophila

Archives of Microbiology, 1978
Rhodopseudomonas acidophila strain 7050 assimilated ammonia via a constitutive glutamine synthetase/glutamate synthase enzyme system. Glutamine synthetase had a Km for NH+4 of 0.38 mM whilst the nicotinamide adenine dinucleotide linked glutamate synthase had a Km for glutamine of 0.55 mM. R.
R A, Herbert, E, Siefert, N, Pfennig
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Membrane lipids of Rhodopseudomonas viridis

Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1997
In search of the precyanobacterial origin of the typical thylakoid lipids found in cyanobacteria and chloroplasts, we analyzed the polar lipids of the anaerobic phototrophic bacterium Rhodopseudomonas viridis. Glycolipids (monogalactosyl-, digalactosyl- and glucuronosyl diacylglycerol), phospholipids (phosphatidyl choline, -ethanolamine, -glycerol and ...
M, Linscheid, B W, Diehl, M, Overmöhle, I, Riedl, E, Heinz   +4 more
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Adaptation of Rhodopseudomonas spheroids

Proceedings of the Royal Society of London. Series B. Biological Sciences, 1968
The composition of Rhodopseudomonas spheroides grown under oxygen or under air in the dark, or semi-anaerobically in the light was studied. The amounts of various constituents were expressed per cell. Anaerobically grown cells were 20 % lighter than cells grown under oxygen but contained approximately 50 % more protein and 85 % more phospholipid.
A, Gorchein, A, Neuberger, G H, Tait
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A bacteriophage of Rhodopseudomonas blastica

Microbiology, 1996
A bacteriophage, øBHG1, was isolated from a small eutrophic pond from which its host,Rhodopseudomonas blastica, was originally obtained. It is a lytic bacteriophage specific forR. blasticawhich also causes non-specific lysis ofRhodobacter sphaeroides8253. øBHG1 has an icosahedral head of 62 nm diameter and a short 39 nm tail.
H, Gorham, C S, Dow
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On the mechanism of photosynthetic electron transfer in Rhodopseudomonas capsulata and Rhodopseudomonas sphaeroides

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1981
Abstract (1) Current models for the mechanism of cyclic electron transport in Rhodopseudomonas sphaeroides and Rhodopseudomonas capsulata have been investigated by observing the kinetics of electron transport in the presence of inhibitors, or in photosynthetically incompetent mutant strains.
J R, Bowyer, A R, Crofts
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Regulatory properties of the ADPglucose pyrophosphorylase from Rhodopseudomonas sphaeroides and from Rhodopseudomonas gelatinosa

Archives of Microbiology, 1980
The ADPglucose pyrophosphorylases from Rhodopseudomonas sphaeroides and Rhodopseudomonas gelatinosa are activated by fructose-6-phosphate, pyruvate and fructose-1,6 biophosphate-P2. The effects of the activators are to increase significantly the Vmax of ADPglucose synthesis and to lower the S0.5 values (concentration of substrates giving 50% maximal ...
J, Preiss, E, Greenberg, T F, Parsons, J, Downey   +3 more
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Rhodopseudomonas pentothenatexigens sp. nov. and Rhodopseudomonas thermotolerans sp. nov., isolated from paddy soils

International Journal of Systematic and Evolutionary Microbiology, 2013
Two strains (JA575T and JA576T) of orange- to pink-pigmented, rod-shaped, motile and budding phototrophic bacteria were isolated from paddy soils. Both strains contained bacteriochlorophyll a and carotenoids of spirilloxanthin series. Both strains had C18 : 1ω7c as the major cellular fatty acid, ubiquinone-10 (Q10) as the main quinone, and ...
B Vinay, Kumar, E V V, Ramprasad, Ch, Sasikala, Ch V, Ramana   +3 more
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Photochemical reaction centers from Rhodopseudomonas capsulata

Archives of Microbiology, 1975
A photochemically active bacteriochlorophyll-protein complex (reaction center) has been isolated from the carotenoidless mutant A1a+ of Rhodopseudomonas capsulata by treatment of membranes with lauryl dimethyl amine oxide. Three proteins with molecular weights of 20,500, 24,000 and 28,000 (molar ratio 1:1:1) were detected in the reaction center ...
K F, Nieth, G, Drews, R, Feick
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[Isolation and identification of Rhodopseudomonas viridis and Rhodopseudomonas sulfoviridis].

Wei sheng wu xue bao = Acta microbiologica Sinica, 1995
Under selective culture conditions, two pure cultures (strain G and strain SG) of the purple nonsulfur photosynthetic bacteria containing bacteriochlorophyll b were isolated from pulp effluent and sludge of sewage treatment plant by means of agar shake dilution.
S, Yang, Z, Zhang, C, Zhao
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Purified catalase from Rhodopseudomonas spheroides

Biochimica et Biophysica Acta, 1959
Abstract The catalase of Rhodopseudomonas spheroides has been purified and characterized. Its mol. wt., catalatic activity, and spectral properties are nearly identical with those of catalase from Micrococcus lysodeikticus. In its affinity for methyl hydrogen peroxide, cyanide, and alcohols, the catalase of Rps.
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