PMID(sorted ascending)
the mechanism of ammonia assimilation in nitrogen fixing bacteria. 19714399578
regulation of the cytoplasmic inorganic pyrophosphatase of rhodospirillum rubrum. 19714399656
the isolation and characterization of rhodospirillum rubrum flavodoxin. 19714400790
the effect of aging resolved chromatophores of rhodospirillum rubrum on the capacity to reconstitute the energy-linked transhydrogenation. 19724400928
ferredoxins in light- and dark-grown photosynthetic cells with special reference to rhodospirillum rubrum. 19724401426
enzymic redox reactions of cytochromes c. 19724405125
sulfite reductase activity in extracts of various photosynthetic bacteria.extracts of representative bacterial strains from the various families of photosynthetic prokaryotes are demonstrated to possess significant levels of sulfite reductase [ec; hydrogen-sulfide: (acceptor)oxidoreductase] activity with reduced methyl viologen as electron donor, but not nadph(2). the enzyme is localized primarily in the soluble fraction of the extracts, in contrast to adenylysulfate reductase [ec; amp, sulfite: (acceptor) oxidoreductase], which is bound normally in ...19744526215
the ubiquinone homologue of the green mutant of rhodopseudomonas spheroides. 19724536950
membranes of photosynthetic bacteria. 19724557023
[current status of the study of a new parasitic group of bacteria, bdellovibrio bacteriovorus]. 19724576702
distribution of purple photosynthetic bacteria in wetland and woodland habitats of central and northern minnesota.enrichment cultures for purple nonsulfur and sulfur photosynthetic bacteria were prepared from soil samples collected in central and northern minnesota. the purple nonsulfur bacteria were found in most wetland soils sampled but were uncommon in woodland and grassland soils. the ph range of the soils in which these bacteria occurred was 3.8 to 7.8, and the oxidation-reduction potential (e(h)) range was +510 to -65 mv. soils with a ph below 5.0 or an e(h) above +370 mv had few purple nonsulfur bac ...19744590487
proteins of the inner membrane of escherichia coli: identification of succinate dehydrogenase by polyacrylamide gel electrophoresis with sdh amber mutants.the inner or cytoplasmic membrane fraction of the cell envelope of escherichia coli was isolated by isopycnic centrifugation on sucrose gradients. the membrane proteins were analyzed by electrophoresis in sodium dodecyl sulfate-polyacrylamide gels (8.5%), and up to 56 bands were resolved. different preparations gave very similar patterns of proteins. succinate dehydrogenase mutants (sdh) were isolated which could not grow on succinate minimal medium, although growth on fumarate was unimpaired. t ...19744591960
natural antibodies and the intestinal flora of rodents. 19744606835
[natural electron donors in the process of nitrogen fixation]. 19744619170
protein composition of intact and fractionated membranes isolated from dark and light grown cells of a blue green mutant of rhodospirillum rubrum (bg 1 ). 19724621613
control of synthesis of reaction center bacteriochlorophyll in photosynthetic bacteria. 19724621847
[demonstration of trans isomers of phytoene and phytofluene in rhodopseudomonas spheroides, rhodospirillum rubrum and mucor hiemalis]. 19724622087
characterization of a blue mutant of rhodospirillum rubrum. 19724622271
studies of flavin-protein interaction in flavoproteins using protein fluorescence and circular dichroism. 19724622437
fluorescence change of auramine o bound to chromatophores of rhodospirillum rubrum--analysis in connection to ionic environment and ion transport. 19724622706
effect of ferredoxin on bacterial photophosphorylation. 19724622736
ribulose diphosphate carboxylase from autotrophic microorganisms.thiobacillus denitrificans was grown anaerobically with nitrate as an acceptor in both sterile and nonsterile media. ribulose diphosphate carboxylase was stable throughout the exponential growth phase and declined slowly only after cells reached the stationary phase. reversible inactivation of the carboxylase occurred in extracts as a result of bicarbonate omission. the enzyme was purified 32-fold with excellent recovery of a preparation which was 50 to 60% pure by the criterion of polyacrylamid ...19724623310
changes in the fluorescence of atebrin and of anilino-naphthalene sulfonate reflecting two different light-induced processes in rhodospirillum rubrum chromatophores. 19724623434
[serological investigations on thylakoids of photosynthetic bacteria and blue-green algae]. 19724623872
lifetime of the excited state in vivo. ii. bacteriochlorophyll in photosynthetic bacteria at room temperature.lifetime of the excited state (tau) of bacteriochlorophyll (bchl) in photosynthetic bacteria, measured with a mode-locked argon laser (oscillating at 488 nm; mode locked at 56 mhz) as light source, ranged from 0.3 to 2.5 nsec. these tau values are reported with a precision of +/-0.1 nsec. the value of tau at high exciting light intensity (i) was two to three times that at low intensity. for young cultures of green bacterium chloropseudomonas ethylicum, tau ranged from 0.5 (low i) to 1.0 nsec (hi ...19724624833
a unified theory of bacterial motile behavior. 19724625587
a free interface diffusion technique for the crystallization of proteins for x-ray crystallography. 19724625692
isolation and characteristics of small, soluble photoreactive fragments of rhodospirillum rubrum. 19724625825
[the biosynthesis of carotenoids]. 19724626283
regulation of ribulose-1,5-diphosphate carboxylase by 6-phospho-d-gluconate. 19724626611
fluorescence of bacteriochlorophyll as related to the photochemistry of chromatophores of photosynthetic bacteria. 19724627083
kinetics of the fluorescence change and p8 70 bleaching in chromatophores from rhodospirillum rubrum. 19724627084
studies on the structure of an ornithine-containing lipid from rhodospirillum rubrum. 19724627356
[synthesis of volatile acids by fermentation of pyruvate and fructose in anaerobic dark cultures of rhodospirillum rubrum]. 19724627360
[a new bacteriochlorophyll from rhodospirillum rubrum]. 19724627398
possible occurrence of a succinate-glycine cycle in rhodospirillum rubrum. 19724627500
temperature dependence of absorption and fluorescence spectra of bacteriochlorophylls in vivo and in vitro. 19724627554
electron acceptors in reaction center preparations from photosynthetic bacteria. 19724627844
isolation and partial characterization of p870 reaction center complex from wild type rhodospirillum rubrum. 19724627845
sulfide utilization by purple nonsulfur bacteria. 19724628180
purification and properties of -ketoglutarate synthase from a photosynthetic bacterium. 19724628267
[aspects of thymine metabolism in athiorhodaceae]. 19724628432
cell-free biosynthesis of precursors of polyprenyl derivatives of p-hydroxybenzoate in mammalian and bacterial systems. 19724628618
nucleosidetriphosphate: nucleosidediphosphate phosphotransferase (ntp-ndp kinase) of rhodospirillum rubrum: its purification and properties. 19724628908
[absorption changes in spectral forms of bacteriochlorophyll in rhodospirillum rubrum chromatophores]. 19724629048
[formation of non-conjugated pteridines by phototrophic bacteria in relation to growth conditions]. 19724630047
comparative study of the circular dichroism spectra of reaction centers from several photosynthetic bacteria. 19734630407
photosynthetic carbon dioxide assimilation by rhodospirillum rubrum. 19734630715
resolution of enzymes catalyzing energy-linked transhydrogenation. iv. reconstitution of adenosine triphosphate-driven transhydrogenation in depleted chromatophores of rhodospirillum rubrum by the transhydrogenase factor and a soluble oligomycin-insensitive mg ++ -adenosine triphosphatase. 19734630853
[changes in the intracytoplasmic membranes system (thylakoids) of rhodospirillum rubrum under nitrogen limitation]. 19724631858
[influence of 2-hydroxybiphenyl on carotenogenesis in rhodospseudomonas spheroides and rhodospirillum]. 19724631864
host range and properties of the pseudomonas aeruginosa r factor r1822.r1822, a plasmid specifying multiple drug resistances, has been transferred to a variety of species representative of related and unrelated genera. the host range of the plasmid includes enterobacteriaceae, soil saprophytes, neisseria perflava, and photosynthetic bacteria. with the acquisition of drug resistance(s), these strains became sensitive to a small, ribonuclease-sensitive bacteriophage, designated prr1, isolated by enrichment from sewage.19734632321
anion radical of bacteriochlorophyll. 19734632875
[hydrogen metabolism and hydrogenase activity in rhodospirillum rubrum]. 19724633039
adpg synthetase and adpg- -glucan 4-glucosyl transferase: enzymes involved in bacterial glycogen and plant starch synthesis. 19734633325
a carotenoprotein from chromatophoreses of rhodospirillum rubrum. 19734633529
growth and adaptive hydrogen production of rhodospirillum rubrum (f 1 ) in anaerobic dark cultures. 19734633594
[allosteric control of pyruvate kinase from rhodospirillum rubrum by inorganic phosphate and sugar phosphate esters]. 19734633838
electron nuclear double resonance of bacteriochlorophyll free radical in vitro and in vivo. 19734689331
pyruvic decarboxylase and acetoin formation in athiorhodaceae. 19734754749
regulation of homoserine biosynthesis by l-cysteine, a terminal metabolite of a linked pathway. 19674860755
discovery of ubiquinones-1,-2,-3, and -4 and the nature of biosynthetic isoprenylation. 19674861596
disruption of bacterial cells by a synthetic zeolite.the use of a synthetic zeolite (type 4a, union carbide corp., linde div., new york, n.y.) in a procedure for the preparation of pure cell wall fractions proved successful for many gram-positive, gram-negative, and acid-fast bacteria, as well as for some fungi. the technique, however, was found to be limited in effectiveness for rhodospirillum rubrum, gaffkya tetragena, and sarcina lutea, and not applicable to preparations of heat killed microorganisms. the possible mechanisms of zeolite action, ...19684877657
cytochrome c2 of rhodospirillum rubrum. ii. complete amino acid sequence and phylogenetic relationships. 19684883098
[energy transfer in solid-state and membrane systems in photosynthesis]. 19684883341
the nature, intergeneric distribution and biosynthesis of isoprenoid quinones and phenols in gram-negative bacteria.1. twenty-two aerobically grown gram-negative bacteria were analysed for demethylmenaquinones, menaquinones, 2-polyprenylphenols, 6-methoxy-2-polyprenylphenols and ubiquinones. 2. all the eight enterobacteria and both the two facultative organisms (aeromonas punctata and aeromonas hydrophila) examined contain all the compounds listed above. the principal homologues are octaprenyl; in addition lower (down to tri- or tetra-prenyl for the 2-polyprenylphenols) and sometimes higher homologues are als ...19694886765
nitrogen fixation by rhodospirillum rubrum grown in nitrogen-limited continuous culture.cell-free extracts of the photosynthetic bacterium rhodospirillum rubrum were inconsistent in reducing n(2). an internally illuminated fermentor, designed for the continuous culture of this organism on n(2) under nitrogen-limited conditions, produced cells which yielded cell extracts with consistent activity for cell-free n(2) fixation. a nitrogen-limited continuous culture, supplied ammonia rather than n(2), gave cell-free extracts with even more active n(2) fixation. extracts of cells grown in ...19694887498
kinetics of synthesis and utilization of adenosine triphosphate by intact cells of rhodospirillum rubrum. 19694897335
[the role of p-hydroxybenzoic acid in plants and animals]. 19694897403
morphological and physiological aspects of the interaction of bdellovibrio with host bacteria. 19694907693
[contents of fatty acids in light cultures of rhodospirillum rubrum during the synthesis of thylakoids]. 19694915260
[deamination of threonine and serine and its allosteric regulation in microorganisms, plants and animals]. 19684916815
homoserine dehydrogenase of rhodospirillum rubrum. ii. purification and characterization of the enzyme. 19704919489
[the influence of oxygen pressure and light intensity on the atp level of athiorhodaceae]. 19704921935
bacterial cytochromes. ii. functional aspects. 19704927136
carotenoids of purple nonsulfur bacteria. composition and biosynthesis of the carotenoids of some strains of rhodopseudomonas acidophila, rhodospirillum tenue, and rhodocyclus purpureus. 19714932469
isolation and counting of athiorhodaceae with membrane filters.the number, type, and distribution of athiorhodaceae in two central pennsylvania artificial lakes were investigated with an anaerobic modification of the membrane filter technique.19714943277
beta-hydroxybutyric dehydrogenase and dimer hydrolase of pseudomonas lemoignei. 19654954074
sedimentation coefficients of rna from 70s and 80s ribosomes. 19674963253
presence of rhapidosomes in various species of bacteria and their morphological characteristics.rod-shaped structures have been observed in cells of pseudomonas, photobacterium, proteus, and saprospira by use of the negative-contrast stain. these structures, referred to as rhapidosomes, appear to be normal components of these cells. other bacteria including escherichia, salmonella, shigella, klebsiella, micrococcus, bacillus, mycobacterium, rhodospirillum, and hydrogenomonas genera failed to reveal these structures. the rhapidosomes of saprospira were found to consist of two rods, one enca ...19674965198
[host range and infection cycle of a newly isolated strain of bdellovibrio bacteriovorus]. 19684974080
[morphogenesis of the photosynthetic apparatus in rhodospirillum rubrum. i. isolation and characterization of two membrane systems]. 19694976894
the absolute configuration of bacteriochloro-phyll-alpha. 19694979649
characterization of cytochrome c from nitrobacter agilis. 19694984114
biological nitrogen fixation. 19704985009
the evolution of photosynthesis. 19704985766
sequence and structure homologies in bacterial and mammalian-type cytochromes. 19714995941
metabolism of poly- -hydroxybutyrate: effect of mild alkaline extraction on native poly- -hydroxybutyrate granules.mild alkaline extraction of native poly-beta-hydroxybutyrate (phb) granules results in the solubilization of a protein fraction. both the solubilized protein fraction and the extracted granules are essentially devoid of phb synthetase activity unless recombined. the protein fraction has been separated by chromatography into two components (a-i and a-ii). a-i but not a-ii can be recombined with extracted granules to give rise to phb synthetase activity. extracted granules no longer require pretre ...19715001870
anomalous energy transfer behaviour of light absorbed by bacteriochlorophyll in several photosynthetic bacteria. 19715002474
disproportionation of i,5 -diphenylcarbazone. a new reaction catalysed by photosystem i. 19715002475
phosphoenolpyruvate-dependent fructose phosphorylation in photosynthetic bacteria. 19715002684
the biosynthesis of terpenoid quinones. 19705002740
mutants of rhodospirrillum rubrum obtained after long-term anaerobic, dark growth.rhodospirillum rubrum s(1) cells were grown for more than 100 generations under strict anaerobic, dark conditions in liquid medium with sodium pyruvate. during this time, growth became nonpigmented. when cells were streaked onto the surface of solid growth medium in anaerobic bottles and placed in the dark, a few light-red colonies developed, but the majority was nonpigmented. mutants were obtained from colonies selected on the basis of pigmentation and bacteriochlorophyll a content. the growth, ...19715003179
studies in valine biosynthesis. ix. the enzymes in photosynthetic and autotrophic bacteria. 19715003668
high-energy electrons in bacteria. 19715005814
concerted feedback inhibition of the aspartokinase of rhodospirillum tenue by threonine and methionine: a novel pattern.the presence of a single aspartokinase was demonstrated in rhodospirillum tenue. the enzyme has been purified about 60-fold. no physical association exists in this species between aspartokinase and homoserine dehydrogenase. the general properties of the enzyme are described. inhibition by l-lysine, by l-threonine, and concerted inhibition by these two end products are regulatory characters which have also been found in many other species. in r. tenue, aspartokinase is also subject to a hitherto ...19725079065
fractionation of rapidly-labelled nucleic acids from rhodospirillum rubrum using polylysine kieselguhr column chromatography. 19715094219
[photoinduced ph changes in rhodospirillum rubrum cells and chromatophores]. 19715095962
investigation of photosynthetic cytochromes c by high resolution nmr spectroscopy. 19715103331
molecular weights of some cytochromes cc'. 19715103659
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