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[glutamate dehydrogenase in the photosynthetic bacterium rhodospirillum rubrum]. 19684303235
[oxidation of reduced nicotinamide-adenine dinucleotide in rhodospirillum rubrum. i. characterization of a soluble nadh dehydrogenase]. 19684303682
[studies on the mechanism of photoreduction of pyridine nucleotide by chromatophores from rhodospirillum rubrum]. 19684303727
[oxydation of reduced nicotinamide-adenine nucleotide in rhodospirillum rubrum. ii. on a reversible temperature-dependent activation of aponadh dehydrogenase]. 19684303728
[enzymes of the electron-transport particles of rhodospirillum rubrum: properties of nadh and succinate cytochrome c reductase]. 19684303729
three different midpoint oxidation-reduction potentials of cytochrome oxidase from bovine heart muscle. 19684304002
[absence of ascorbic acid in rhodospirillum rubrum]. 19685637634
photochemical activities of k3fe(cn)6-treated chromatophores from rhodospirillum rubrum. 19685638384
the role of p870 in bacterial photosynthesis. 19685638394
synthesis of adenosine triphosphate in intact cells of rhodospirillum rubrum and rhodopseudomonas spheroides on oxygenation or illumination. 19685642393
identification of propionate as an endogenous co2 acceptor in rhodospirillum rubrum and properties of purified propionyl-coenzyme a carboxylase.a heat-stable endogenous co(2) acceptor has been found in extracts of rhodospirillum rubrum grown photoheterotrophically on acetate. evidence is presented which suggests that this factor is propionic acid. thus, paper and gas chromatographic analyses have indicated that propionic acid is present in boiled extracts prepared from r. rubrum cells. the products of (14)co(2) fixation obtained with either the boiled extract or propionic acid as the co(2) acceptor were identical and were identified as ...19685650084
roles of ubiquinone-10 and rhodoquinone in photosynthetic formation of adenosine triphosphate by chromatophores from rhodospirillum rubrum. 19685653187
light-induced electron transfer, internal and external hydrogen ion changes, and phosphorylation in chromatophores of rhodospirillum rubrum. 19685655426
equivalence of light and atp in photokinesis of rhodospirillum rubrum. 19685655966
determination of biosynthetic precursors from p-hydroxybenzoic acid-u-14c to ubiquinone. 19685658103
molecular diversity of the ribulose-1,5-diphosphate carboxylase from photosynthetic microorganisms.the ribulose-1,5-diphosphate carboxylases from green and blue-green algae and the purple sulfur photosynthetic bacterium chromatium are proteins with high molecular weights and with sedimentation coefficients of 18 to 21 svedberg units. the carboxylases of the athiorhodaceae are smaller, that of rhodospirillum rubrum being a 6.2s molecule, and those of the two species of rhodopseudomonas are 12s and 14.5s.19685659689
the requirement of ubiquinone-10 for an atp-forming system and an atpase system of chromatophores from rhodospirillum rubrum. 19685660398
utilization of fructose and glutamate by rhodospirillum rubrum. 19685661059
observations on the nature of pulse-labeled rna's from photosynthetically or heterotrophically grown rhodospirillum rubrum. 19685661368
pep carboxykinase exchange reaction in photosynthetic bacteria.this paper describes some new characteristics of the phosphoenolpyruvate carboxykinase co(2)-oxaloacetate exchange reaction in purified preparations of rhodospirillum rubrum. the enzymatic activity has been purified 169-fold. nucleotide diphosphates substitute for nucleotide triphosphates in the exchange reaction. nucleotide diphosphates will not support the synthesis of phosphoenolpyruvate from oxaloacetate. this reaction differs significantly from the co(2)-oxaloacetate exchange reaction in hi ...19685661493
the carboxylation of phosphoenolpyruvate and pyruvate. i. the active species of "co2" utilized by phosphoenolpyruvate carboxykinase, carboxytransphosphorylase, and pyruvate carboxylase. 19685661712
utilization of fructose and glutamate by rhodospirillum rubrum. 19685665974
mössbauer spectroscopy of bacterial cytochromes. 19685677845
some optical properties of a "carotenoid complex" derived from rhodospirillum rubrum. 19685680285
effects of antibiotics on ion transport and photophosphorylation in rhodospirillum rubrum chromatophores. 19685681459
linkages in the walls of rhodospirillum rubrum and its bacilliform mutants. 19685687572
primary photochemistry and electron transport in rhodospirillum rubrum. 19685690721
cytochrome c2 of rhodospirillum rubrum. 1. molecular properties of the protein and amino acid sequences of its peptides derived by the action of trypsin and thermolysin. 19685702054
adaptation of the cary recording spectrophotometer to circular dichroism measurements. 19685704740
[separation of the thylakoid chomponents of various athiorodaceae by means of gel electrophoresis]. 19685706421
[the action of amytal, 2,4-dinitrophenol and phenazine methosulfate on the synthesis of bacteriochlorophyll in anaerobic cultures of rhodospirillum rubum]. 19685706426
[utilization of fructose and synthesis of bacteriochlorophyll in anaerobic dark and light cultures of rhodospirillum rubrum]. 19685709369
[studies on the photoautotrophy in newly isolated non-sulfur purple bacteria with molecular hydrogen]. 19685709647
[quantitative determination of the fatty acids of rhodospirillum rubrum and rhodopseudomonas capsulata during the morphogenesis of thylakoids]. 19685709650
ion transport induced by light and antibiotics in chromatophores from rhodospirillum rubrum. 19685725812
quinones of athiorhodaceae. 19685727384
cation transport in a photosynthetic bacterium. 19685732517
linkages in the walls of rhodospirillum rubrum and its bacilliform mutants. 19685737943
[hydrogen excretion and carbon assimilation by purple bacteria in relation to light intensity]. 19685747211
[host range and infection cycle of a newly isolated strain of bdellovibrio bacteriovorus]. 19684974080
[deamination of threonine and serine and its allosteric regulation in microorganisms, plants and animals]. 19684916815
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
inhibition by nigericin of the light-induced ph change in rhodospirillum rubrum chromatophores. 19685238672
evidence for two light-driven reactions in the purple photosynthetic bacterium, rhodospirillum rubrum. 19685249813
[demonstration of sugar in the thylakoids of rhodospirillum rubrum and rhodopseudomonas viridis]. 19684385924
[the redox condition of nad (p) and of cytochrome b and c2 in relation to the po2 in various athiorodaceae]. 19684388131
p-phenylenediamines as electron donors for photosynthetic pyridine nucleotide reduction in chromatophores from rhodospirillum rubrum. 19674383018
energy-linked reactions in photosynthetic bacteria. ii. the energy-dependent reduction of oxidized nicotinamide-adenine dinucleotide phosphate by reduced nicotinamide-adenine dinucleotide in chromatophores of rhodospirillum rubrum. 19674383839
tritium incorporation studies in photosynthetic bacteria. 19675237890
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
copper replacement of magnesium in the chlorophylls and bacteriochlorophyll. 19674385822
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
the use of sephadex for the concentration of pteridines. 19675585267
ferredoxin-dependent carbon assimilation in rhodospirillum rubrum. 19675602471
[inorganic polyphosphate glucokinase in various microorganisms]. 19675628592
correlation of light-induced absorbance changes with photo-phosphorylation in rhodospirillum rubrum extracts. 19676016332
isolation and characterization of glycolipids from some photosynthetic bacteria.glycosyl glycerides have been found in substantial amounts in chloropseudomonas ethylicum but could not be detected in two strains of rhodopseudomonas palustris. rhodospirillum molischianum possibly contains small amounts of monoglycosyl diglyceride. the glycolipids of c. ethylicum have been separated into two components. one of these, glycolipid i, is a monogalactosyl diglyceride. glycolipid ii, upon acid hydrolysis, yields galactose, rhamnose, and a third, unidentified sugar. the glycolipids o ...19676025299
regulation of glutamine synthetase. ii. patterns of feedback inhibition in microorganisms.the feedback inhibition of glutamine synthetase was investigated by use of partially purified enzyme preparations from salmonella typhimurium, micrococcus sodonensis, pseudomonas fluorescens, bacillus cereus, bacillus licheniformis, clostridium pasteurianum, rhodospirillum rubrum, neurospora crassa, candida utilis, and chlorella pyrenoidosa. inhibition analyses indicated that the enzyme of each organism can be effectively regulated with mixtures of end products from the diverse pathways of gluta ...19676025412
light-induced interactions of rhodospirillum rubrum chromatophores with bromothymol blue. 19676025556
biosynthesis of phenylalanine from phenylacetate by chromatium and rhodospirillum rubrum.cultures of chromatium strain d and rhodospirillum rubrum incorporated (14)c from phenylacetate-1-(14)c during anaerobic growth. the radioactivity in the protein fraction of cells was mainly in phenylalanine. phenylalanine from chromatium cells grown in phenylacetate-1-(14)c was labeled at carbon 2. incorporation of phenylacetate by chromatium was decreased in the presence of exogenous phenylalanine, and de novo synthesis of phenylalanine from bicarbonate was less in medium containing either phe ...19676032506
basal organelles of bacterial flagella.liberated by enzymatic lysis of the cells, the flagella of rhodospirillum rubrum, r. molischianum, and r. fulvum all have a similar structure. the hook at the base of the flagellum is connected by a short, narrow collar to a paired disc in the basal organelle. this paired disc is in turn connected to a second paired disc. the disposition of flagella to which fragments of the cell membrane still adhere suggests that the narrow collar at the base of the hook traverses both the wall and the membran ...19676039362
photosynthesis in rhodospirillum rubrum. i. autotrophic carbon dioxide fixation.the incorporation and distribution of activity from (14)co(2) was investigated under autotrophic conditions in the facultative photoautotroph, rhodospirillum rubrum, with cells cultured on hydrogen, carbon dioxide, and ammonium sulfate. in 1 second (14)co(2) fixation experiments essentially all of the activity was found in 3-phosphoglyceric acid: plotted against time percent incorporation into phosphate esters has a strikingly negative slope. these results suggest that under autotrophic conditio ...19676042357
photosynthesis in rhodospirillum rubrum. ii. photoheterotrophic carbon dioxide fixation.the contribution of the reductive pentose phosphate cycle to the photometabolism of carbon dioxide and to carbon metabolism in rhodospirillum rubrum grown photoheterotrophically with l-malate as the carbon source is nil, unlike autotrophically grown r. rubrum. glycolic acid appears to be the first stable product of co(2) fixation in r. rubrum cultured photoheterotrophically on l-malate. the results obtained in (14)co(2) fixation experiments suggest that the photometabolism of co(2) through glyco ...19676042358
photosynthesis in rhodospirillum rubrum. 3. metabolic control of reductive pentose phosphate and tricarboxylic acid cycle enzymes.enzymes of the reductive pentose phosphate cycle including ribulose-diphosphate carboxylase, ribulose-5-phosphate kinase, ribose-5-phosphate isomerase, aldolase, glyceraldehyde-3-phosphate dehydrogenase and alkaline fructose-1,6-diphos-phatase were shown to be present in autotrophically grown rhodospirillum rubrum. enzyme levels were measured in this organism grown photo- and dark heterotrophically as well. several, but not all, of these enzymes appeared to be under metabolic control, mediated b ...19676042359
pigment-protein complexes derived from rhondospirillum rubrum chromatophores by enzymatic digestion. 19676048851
a factor from spinach leaves interacting with chlorophylls. 19676048856
observations on the changes in ultraviolet absorbance caused by succinate and light in rhodospirillum rubrum. 19676048858
bacilliform mutants of rhodospirillum rubrum. 19676049520
identification of pteridines produced by three species of photosynthetic bacteria. 19676049523
light-induced rapid absorption changes during photosynthesis. 8. cytochrome and bacteriochlorophyll reactions in rhodospirillum rubrum cells. 19676049953
decline in bacteriochlorophyll fluorescence induced by carotenoid absorption. 19676049957
light-induced electron transfer reactions and adenosine triphosphate formation by rhodospirillum rubrum chromatophores. 19676052446
carotenoid biosynthesis in rhodospirillum rubrum: effect of pteridine inhibitor.a known inhibitor of pteridine utilization (4-phenoxy,2,6-diamino pyridine) blocks the synthesis of colored carotenoids in the photosynthetic bacterium rhodospirillum rubrum. in many ways the effect is similar to the inhibition of the synthesis of colored carotenoids by diphenylamine. this inhibition is probably independent of other effects of pteridine on photosynthetic electron transport since it is not as readily reversible as the total inhibition of photosynthetic activity by pteridine analo ...19676054162
the use of spectrophotometry in an ecological investigation of the facultatively anaerobic purple photosynthetic bacteria. 19676054684
new multiprenylquinones in the biosynthesis of ubiquinone. 19676055159
ornithine-containing lipid in rhodospirillum rubrum. 19676055208
an electrophoretic study of the heme proteins of some photosynthetic bacteria. 19676058130
observations on the biosynthesis of phytoterpenoid quinone and chromanol nuclei.1. p-hydroxy[u-(14)c]benzoic acid, except for loss of the carboxyl group, is effectively incorporated into the nucleus of ubiquinone and an unidentified prenylphenol by maize roots, maize shoots, french-bean leaves, french-bean cotyledons and ochromonas danica. plastoquinone, alpha-tocopherol, gamma-tocopherol and alpha-tocopherolquinone are all unlabelled from this substrate. the high radioactivity of the prenylphenol and its behaviour in a pulse-labelling experiment with maize shoots suggested ...19676060446
new epoxyubiquinones. 19676073044
the interaction of the free radical of 5-methylphenazinium methyl sulfate with the light-induced free radical of rhodospirillum rubrum chromatophores. 19674291921
inorganic pyrophosphate as an energy donor in photosynthetic and respiratory electron transport phosphorylation systems. 19674291991
magnetic susceptibility measurements on hemoproteins down to 4.2 degrees k. 19674292723
relationship between photosynthetic and oxidative phosphorylations in chromatophores from light-grown cells of rhodospirillum rubrum. 19674292784
energy-linked reactions in photosynthetic bacteria. i. succinatelinked atp-driven nad reduction by rhodospirillum rubrum chromatophores. 19674293589
inorganic pyrophosphate and atp as energy donors in chromatophores from rhodospirillum rubrum. 19674293681
inhibition of the energy conservation reactions of rhodospirillum rubrum by dio-9. 19674229637
[the influence of the partial pressure of oxygen and of the antibiotics actinomycin and puromycin on the growth, the bacteriochlorophyll synthesis, and the morphogenesis of thylakoids in dark cultures of rhodospirillum rubrum]. 19674173527
light-induced energy conversion and the inorganic pyrophosphatase reaction in chromatophores from rhodospirillum rubrum . 19664226095
the synthesis of phosphoendolpyruvate from pyruvate and atp by extracts of photosynthetic bacteria. 19665911083
the possible role of quinone methines in phosphorylation reactions in rhodospirillum rubrum and liver mitochondria. 19665911279
complete fractionation of bacteriochlorophyll and its degradation products. 19665912015
thiosulphate metabolism and rhodanese in chromatium sp. strain d. 19665915368
photophosphorylation in presence and absence of added adenosine diphosphate in chromatophores from rhodospirillum rubrum. 19665933524
synthesis and possible character of a high-energy intermediate in bacterial photophosphorylation.1. in photophosphorylation with chromatophores from rhodospirillum rubrum, evidence is presented for the synthesis of activated precursors of atp in the energy-conversion system coupled to photosynthetic electron transport. 2. a significant amount of atp is synthesized when a reaction mixture containing chromatophores and adp is illuminated and then incubated with p(i) in the dark. atp is not synthesized to an appreciable extent, either when a reaction mixture containing chromatophores and p(i) ...19665938657
light-induced dark [32p]adenosine triphosphate formation by rhodospirillum rubrum chromatophores. adenosine triphosphate-inorganic phosphate exchange activity. 19665938951
a procedure for the preparation of extracts from rhodospirillum rubrum catalyzing n2 reduction and atp-dependent h2 evolution. 19665941206
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