| [demonstration of sugar in the thylakoids of rhodospirillum rubrum and rhodopseudomonas viridis]. | | 1968 | 4385924 |
| [amino acid production by microorganisms. control of biosynthesis of asparaginic amino acid and production of l-lysine]. | | 1968 | 4387467 |
| [the redox condition of nad (p) and of cytochrome b and c2 in relation to the po2 in various athiorodaceae]. | | 1968 | 4388131 |
| studies on the mechanism of nad-photoreduction by chromatophores of the facultative phototroph, rhodopseudomonas capsulata. | | 1969 | 4388881 |
| [reactions of the hydrogenase from rhodopseudomonas capsulata in the particle-bound and dissolved state]. | | 1969 | 4389798 |
| nadh and amp as allosteric effectors of ribulose-5-phosphate kinase in rhodopseudomonas spheroides. | | 1969 | 4390398 |
| [glucose-6-phosphate dehydrogenase in autotrophic microorganisms. ii. regulation of activity of glucose-6-phosphate dehydrogenase in euglena gracilis and rhodopseudomonas spheroides]. | | 1970 | 4393876 |
| coproporphyrinogenase activities in extracts of rhodopseudomonas spheroides. | | 1970 | 4394949 |
| multiplicity of electron transport reactions in bacterial photosynthesis. | | 1970 | 4394952 |
| [rate of carbon assimilation by rhodopseudomonas palustris]. | | 1971 | 4398101 |
| succinate semialdehyde dehydrogenase of rhodopseudomonas spheroides which is active with both nadp + and nad + . | | 1971 | 4398452 |
| interchangeability of phosphorylation coupling factors in photosynthetic and respiratory energy conversion. | the nonsulfur purple photosynthetic bacterium rhodopseudomonas capsulata can obtain energy for growth either by anaerobic photophosphorylation or dark oxidative (aerobic) phosphorylation. successful resolution of phosphorylation coupling factors from energy-converting membranes of this bacterium permitted tests for reciprocal function of such protein factors in oxidative-and photophosphorylation processes. evidence was obtained for the interchangeability of coupling factor preparations from dark ... | 1971 | 4398683 |
| photosynthesis: the electron transport system of green plants. | | 1971 | 4399259 |
| [ferredoxin-dependent formate dehydrogenase of the green photosynthesizing bacteria chloropseudomonas ethylica strain 5i]. | | 1972 | 4402543 |
| [differentiation of membranes from rhodopseudomonas capsulata with respect to their photosynthetic and respiratory functions]. | | 1972 | 4403344 |
| energy-linked electron transfer reactions in rhodopseudomonas viridis. | | 1972 | 4403603 |
| enzymic redox reactions of cytochromes c. | | 1972 | 4405125 |
| isocitrate dehydrogenase from rhodopseudomonas spheroides: purification and characterization. | | 1972 | 4405526 |
| on the determination of the transmembrane ph difference in bacterial chromatophores using 9-aminoacridine. | | 1974 | 4434984 |
| a simple method for extraction and partial purification of chlorophyll from plant material, using dioxane. | | 1974 | 4436293 |
| bioenergetic aspects of bacteriophage replication in the photosynthetic bacterium rhodopseudomonas capsulata. | | 1974 | 4441075 |
| the lipopolysaccharides (o-antigens) of rhodopseudomonas viridis. | | 1974 | 4441220 |
| electrochemical proton gradient and phosphate potential in bacterial chromatophores. | | 1974 | 4442600 |
| [effect of ammonium on hydrogen evolution and nitrogen fixation in rhodopseudomonas palustris]. | | 1974 | 4453204 |
| proceedings: electron transport control by energy-rich phosphates in rhodopseudomonas palustris. | | 1974 | 4461531 |
| genetic recombination in rhodopseudomonas capsulata. | a system for genetic exchange in rhodopseudomonas capsulata has been discovered. each genetic marker thus far examined can be transferred, and many strains of rps. capsulata can participate in genetic exchange. the mechanism of gene transfer seems unlike that of any previously described bacterial system, since genes can be transferred by cell-free filtrates, but the vector is resistant to deoxyribonuclease and has a sedimentation constant of about 70 s. | 1974 | 4522805 |
| 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 1.8.99.1; 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 1.8.99.2; amp, sulfite: (acceptor) oxidoreductase], which is bound normally in ... | 1974 | 4526215 |
| on reconstitution of bacterial photophosphorylation in vitro. | membranes active in oxidative phosphorylation but inactive in photophosphorylation were isolated from a carotenoid-less and bacteriochlorophyll-less mutant strain of rhodopseudomonas capsulata. these membranes were uncoupled and recombined with coupling factor from the same strain and with reaction centers from a photosynthetically active revertant strain. the reconstituted system was able to form atp from adp and inorganic phosphate under anaerobic conditions in the light. rates of 2 nmoles of ... | 1974 | 4530296 |
| photochemical electron transport in photosynthetic reaction centers from rhodopseudomonas spheroides. ii. interaction with external electron donors and acceptors and a reevaluation of some spectroscopic data. | photochemical reaction centers prepared from rhodopseudomonas spheroides were treated with reduced cytochrome c (cyt c), and in some cases with ubiquinone (uq), and illuminated. the light-induced oxidation of cy and reduction of uq were observed, and also the variations in fluorescence of p870. these observations indicated that each reaction center contains a primary photochemical electron acceptor capable of holding just one electron. depending on the method of preparation, the reaction centers ... | 1972 | 4536628 |
| photochemical electron transport oin photosynthetic reaction centers from rhodopseudomonas spheroides. 3. effects of orthophenanthroline and other chemicals. | reaction centers from rhodopseudomonas spheroides mediate the photochemical oxidation of cytochrome c (cyt c), and show a time-varying fluorescence of p870. analyses of these effects indicate that the reaction centers contain a primary photochemical electron acceptor capable of holding one electron. native or added ubiquinone (uq) can act as a secondary electron acceptor. orthophenanthroline (o-phen) blocks electron transfer from primary to secondary acceptors, and allows the primary acceptor to ... | 1972 | 4536629 |
| the nature of the inhibition of -aminolevulinic acid synthetase by hemin. | | 1972 | 4536714 |
| purification and properties of a photosynthetic reaction center isolated from various chromatophore fractions of rhodopseudomonas spheroides y. | | 1972 | 4536948 |
| reaction center preparations of rhodopseudomonas spheroides: energy transfer and structure. | | 1972 | 4536949 |
| the ubiquinone homologue of the green mutant of rhodopseudomonas spheroides. | | 1972 | 4536950 |
| changes in ribonucleic acid turnover during aerobic and anaerobic growth in rhodopseudomonas spheroides. | differences in the rate and extent of degradation of ribonucleic acid (rna) labeled by a 30-sec pulse in aerobically or anaerobically grown rhodopseudomonas spheroides have been studied by using rifampin to block rna synthesis. in anaerobic cultures, unstable rna is degraded with a half-life of 1.25 to 2.0 min, and about 40% of the pulse-labeled rna is stable. in aerobic cultures, the half-life of unstable rna is increased to 2.5 to 4.0 min, and 50% of the rna is stable. when aerobic cultures ar ... | 1972 | 4537108 |
| ribonucleic acid from aerobically and anaerobically grown rhodopseudomonas spheroides: comparison by hybridization to chromosomal and satellite deoxyribonucleic acid. | ribonucleic acid (rna) species from aerobically and anaerobically grown rhodopseudomonas spheroides were compared via hybridization to deoxyribonucleic acid (dna). both long-labeled and stable rna bound to chromosomal dna to the same extent, regardless of derivation. about 4% of the chromosomal dna hybridized with total cell rna and about 0.08% with stable rna. about 4% of the mixed satellite dna could be hybridized to total cell rna from aerobic or anaerobic cultures, whereas essentially no sta ... | 1972 | 4537109 |
| accumulation of porphobilinogen and other pyrroles by mutant and wild type rhodopseudomonas spheroides: regulation by heme. | | 1972 | 4537309 |
| -aminolevulinic acid synthetase of rhodopseudomonas spheroides: purification and properties of the enzyme. | | 1972 | 4537311 |
| photochemical electron transport in photosynthetic reaction centers from rhodopseudomonas spheroides. i. kinetics of the oxidation and reduction of p-870 as affected by external factors. | photosynthetic reaction centers from rhodopseudomonas spheroides were prepared with the detergent lauryl dimethylamine oxide (ldao). in contrast to reaction centers made with triton x-100, these contained no cytochromes and little or no ubiquinone (uq). the reduction of p-870, after its photochemical oxidation, was studied in these materials with the following results. in reaction centers made with triton x-100, slow kinetic components (seconds to minutes) could be attributed to secondary electr ... | 1972 | 4537668 |
| control of -aminolevulinate synthetase activity in rhodopseudomonas spheroides. ii. requirement of a disulfide compound for the conversion of the inactive form of fraction i to the active form. | | 1972 | 4537847 |
| [study of the molecular organization of bacteriochlorophyll and its analogs in solid films; infrared absorption spectra]. | | 1972 | 4537882 |
| energy transfer in bacterial photosynthesis. i. light intensity dependences of fluorescence lifetimes. | | 1972 | 4538075 |
| partial purification of an enzyme which is required for the conversion of the inactive form to the active form of -aminolevulinate synthetase from rhodopseudomonas spheroides. | | 1972 | 4538402 |
| photochemical electron transport in photosynthetic reaction centers. iv. observations related to the reduced photoproducts. | | 1972 | 4538554 |
| esterifying alcohols in the chlorophylls of purple photosynthetic bacteria. a new chlorophyll, bacteriochlorophyll (gg), all-trans-geranylgeranyl bacteriochlorophyllide a. | | 1972 | 4538632 |
| membranes of rhodopseudomonas spheroides. i. isolation and characterization of membrane fractions from extracts of aerobically and anaerobically grown cells. | | 1972 | 4539052 |
| membranes of rhodopseudomonas spheroides. ii. precursor-product relations in anaerobically growing cells. | | 1972 | 4539053 |
| purification and properties of threonine dehydratase from rhodopseudomonas spheroides. | | 1972 | 4539055 |
| kinetic studies on the reaction catalysed by threonine dehydratase from rhodopseudomonas spheroides. | | 1972 | 4539056 |
| characterization of the pigments in reaction center preparations from rhodopseudomonas spheroides. | | 1972 | 4539178 |
| proton uptake and quenching of bacteriochlorophyll fluorescence in rhodopseudomonas spheroides. | | 1972 | 4539373 |
| the effect of diaminodurene on the delayed light and the carotenoid band shift in rhodopseudomonas spheroides. | | 1972 | 4539374 |
| [action of different chemical compounds on the carotenogenesis of rhodopseudomonas spheroides]. | | 1972 | 4539388 |
| purification and properties of uroporphyrinogen i synthetase from rhodopseudomonas spheroides. | | 1973 | 4539746 |
| [inhibitory effect of certain intermediates of anaerobic glycolysis on the synthesis of porphyrins by rhodopseudomonas spheroides]. | | 1972 | 4540054 |
| photosynthetic membrane development in rhodopseudomonas spheroides. ii. correlation of pigment incorporation with morphological aspects of thylakoid formation. | | 1972 | 4540275 |
| spectral properties of reaction center preparations from rhodopseudomonas spheroides. | | 1973 | 4540710 |
| kinetic and thermodynamic properties of membrane-bound cytochromes of aerobically and photosynthetically grown rhodopseudomonas spheroides. | | 1973 | 4540949 |
| extraction of oxidized bacteriochlorophyll from illuminated photosynthetic reaction center particles. | | 1973 | 4540950 |
| membrane proteins of rhodopseudomonas spheroides. 3. isolation, purification, and characterization of cell envelope proteins. | | 1973 | 4541219 |
| membrane proteins of rhodopseudomonas spheroides. v. additional chemical characterization of a pigment-lipid-associated protein isolated from chromatophores. | | 1973 | 4541220 |
| coupling between bacteriochlorophyll and membrane protein synthesis in rhodopseudomonas spheroides. | bacteriochlorophyll-containing membranes from rhodopseudomonas spheroides contain proteins with estimated molecular weights of 26,000, 22,000, 19,000, and 10,000-6,000 (proteins 9, 10, 11, and 15) when analyzed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. proteins 9, 10, and 11 may be associated with the reaction center form of bacteriochlorophyll and protein 15, with the light-harvesting form. these proteins were not detected in membranes from nonpigmented wild-type cells grown ... | 1973 | 4541415 |
| the effect of redox potential on the coupling between rapid hydrogen-ion binding and electron transport in chromatophores from rhodopseudomonas spheroides. | | 1973 | 4541536 |
| biosynthesis of spheroidene and hydroxyspheroidene in rhodopseudomonas species: experiments with nicotine as inhibitor. | neurosporene replaces spheroidene and hydroxyspheroidene as the main carotenoid in rhodopseudomonas spheroides and rhodopseudomonas gelatinosa grown in the presence of nicotine. on removal of the nicotine, spheroidene and hydroxyspheroidene are formed at the expense of the accumulated neurosporene. this shows that nicotine inhibits introduction of the c-1 tertiary hydroxyl groups, and supports the postulated pathway neurosporene-->spheroidene-->hydroxyspheroidene. | 1973 | 4541982 |
| recent studies of carotenoid biosynthesis in bacteria. | | 1973 | 4542022 |
| -aminolevulinic acid dehydratase of rhodopseudomonas capsulata. | | 1973 | 4542319 |
| dependency on environmental redox potential of photophosphorylation in rhodopseudomonas spheroides. | | 1973 | 4542403 |
| polypyrroles formed from porphobilinogen and amines by uroporphyrinogen synthetase of rhodopseudomonas spheroides. | 1. uroporphyrinogen i synthetase of rhodopseudomonas spheroides was purified more than 200-fold from the soluble protein of broken bacterial cells. the enzyme had molecular weight 36000, an isoelectric point of 4.46 and migrated as a single active protein band on disc-gel electrophoresis at ph7.5 and 8.9. 2. the enzyme consumed porphobilinogen and formed uroporphyrinogen at ph8.2 without the accumulation of intermediates. in the presence of hydroxylamine, ammonia or methoxyamine the production o ... | 1973 | 4542566 |
| fluorescence excitation spectra and the relative numbers of pigment molecules in reaction centres from rhodopseudomonas spheroides. | | 1973 | 4542616 |
| mechanism and stereochemistry of the 5-aminolaevulinate synthetase reaction. | 1. two mechanisms for the biosynthesis of 5-aminolaevulinate from glycine and succinyl-coa (3-carboxypropionyl-coa) are considered. one of the mechanisms involves the retention of both the c-2 h atoms of glycine during the synthesis of 5-aminolaevulinate, whereas the other predicts the retention of only one of the c-2 h atoms of glycine. 2. highly purified 5-aminolaevulinate synthetase from rhodopseudomonas spheroides was used to show that the c-2 h atom of glycine with r configuration is specif ... | 1973 | 4543543 |
| [intracellular distribution of vitamin b 12 in a culture of rhodopseudomonas spheroides]. | | 1973 | 4543823 |
| 5-aminolevulinic-acid synthetase of rhodopseudomonas spheroides y. purification and some properties. | | 1973 | 4543959 |
| carotenoid biosynthesis in rhodopseudomonas spheroides. s-adenosylmethionine as the methylating agent in the biosynthesis of spheroidene and spheroidenone. | [methyl-(14)c]methionine and s-adenosyl[methyl-(14)c]methionine were incorporated into the methoxycarotenoids spheroidene and spheroidenone by rhodopseudomonas spheroides. the incorporation was greatly enhanced in the presence of lysozyme. on degradation of labelled spheroidene by hydriodic acid, the (14)c label was recovered in methyl iodide. degradation of spheroidenone by reduction and allylic dehydration and demethylation of the reduction product gave a mixture of unlabelled carotenoid hydro ... | 1973 | 4544066 |
| requirement of protein synthesis for maturation of ribosomal rna in rhodopseudomonas spheroides. | | 1973 | 4544261 |
| control of 5-aminolaevulinate synthetase activity in rhodopseudomonas spheroides. the involvement of sulphur metabolism. | 1. the ;initial' 5-aminolaevulinate synthetase activity, that is the activity observed immediately after cell disruption, in extracts prepared from unharvested semianaerobically grown rhodopseudomonas spheroides, was twice that observed under the same assay conditions in extracts prepared from harvested cells. 2. the effect of oxygenation of a culture on the ;maximum' aminolaevulinate synthetase activity, that is the activity observed 1h after disruption of harvested cells, is markedly influence ... | 1973 | 4544404 |
| control of 5-aminolaevulinate synthetase activity in rhodopseudomonas spheroides. the purification and properties of an endogenous activator of the enzyme. | 1. a low-molecular-weight activator of 5-aminolaevulinate synthetase was detected in extracts of rhodopseudomonas spheroides. the compound activates the enzyme extracted from oxygenated semi-anaerobically grown organisms by a factor of 6-8. 2. the activator was extensively purified, but owing to the exceedingly small amounts that could be extracted in the active form its structure was not determined. 3. the activator contains an acetylatable amino group; it is more stable at acid than at alkalin ... | 1973 | 4544405 |
| [tricarboxylic acid cycle enzymes in various species of phototrophic bacteria]. | | 1973 | 4544539 |
| use of mutants of rhodopseudomonas spheroides for preparation of bacteriochlorophyll precursors. | | 1972 | 4544885 |
| small angle x-ray scattering of the thylakoid membranes of rhodopseudomonas speroides in aqueous suspensions. | the diffraction patterns of particles which have the shape of hollow spheres, i.e. vesicles, can be satisfactorily analyzed by means of a new formula of weick (1974). this formula is used for the small angle x-ray scattering analysis of aqueous suspensions of thylakoids of rhodopseudomonas spheroides. some essential results are: (a) the membrane has a rather asymmetric structure with one layer of low electron density at its inner side and two layers of high electron density near the outer surfac ... | 1974 | 4545071 |
| topology and growth of the intracytoplasmic membrane system of rhodopseudomonas spheroides: protein, chlorophyll, and phospholipid insertion into steady-state anaerobic cells. | an equilibrium density gradient centrifugation study involving the separation of "old" and "new" membranes has been developed to determine the manner in which protein, lipid, and chlorophyll are incorporated into growing intracytoplasmic membranes (chromatophores) of rhodopseudomonas spheroides. chromatophores derived from cells grown in an h(2)o-medium had a density of 1.175 to 1.180 g/cm(3) and were readily separable from chromatophores having a density of 1.220 to 1.230 isolated from cells gr ... | 1974 | 4545399 |
| mechanism of the effect of exogenous glucose on the biosynthesis of porphyrins by rhodopseudomonas spheroides. | | 1973 | 4545440 |
| control of aminolaevulinate synthetase in rhodopseudomonas spheroides. | | 1973 | 4545441 |
| interconversion between the active and inactive forms of delta-aminolevulinate synthetase in rhodopseudomonas spheroides. | | 1973 | 4545442 |
| bacteriophages of rhodopseudomonas spheroides: isolation and characterization of a rhodopseudomonas spheroides bacteriophage. | a dna-containing bacteriophage, designated rs1, infecting rhodopseudomonas spheroides 2.4.1, has been isolated from sewage. the buoyant density of rs1 in cscl equilibrium centrifugation is 1.50 g/cm(3), and the buoyant density of rs1 dna is 1.706. the phage possesses a polyhedral head, approximately 65 nm in diameter, and a tail 60 nm long. when grown on aerobic cells, rs1 has a latent period of 120 min and an average burst size of 20. when grown on anaerobic cells, rs1 has a latent period of 15 ... | 1974 | 4545531 |
| h+ uptake by chromatophores from rhodopseudomonas spheroides. the relation between rapid h+ uptake and the h+ pump. | | 1974 | 4546206 |
| a comparison of beauvericin, enniatin and valinomycin as calcium transporting agents in liposomes and chromatophores. | | 1974 | 4546705 |
| comparative studies on two reaction center preparations from rhodopseudomonas speheroides y. | | 1974 | 4546760 |
| effects of extraction and replacement of ubiquinone upon the photochemical activity of reaction centers and chromatophores from rhodopseudomonas spheriodes. | | 1974 | 4547199 |
| function of membrane proteins coupled to bacteriochlorophyll synthesis. studies with wild type and mutant strains of rhodopseudomonas spheroides. | | 1974 | 4547213 |
| kinetics of photosynthetic membrane protein assembly in rhodopseudomonas spheroides. | | 1974 | 4547239 |
| the state of chlorophyll and carotenoid in vivo. ii. a linear dichroism study of pigment orientation in photosynthetic bacteria. | | 1974 | 4547333 |
| primary events in photosynthesis: picosecond kinetics of carotenoid bandshifts in rhodopseudomonas spheroides chromatophores. | | 1974 | 4547716 |
| isolation and characterization of a temperate bacteriophage specific for rhodopseudomonas spheroides. | the isolation of a temperature phage specific for the photosynthetic bacterium rhodopseudomonas spheroides is reported. this phage, rphi-1, establishes a state of lysogeny and can be induced from the prophage state by exposure to mitomycin c or uv irradiation. mutants of rphi-1 which grow on a standard laboratory strain (2.4.1) of rhodopseudomonas spheroides were isolated. although the original rphi-1 isolated was chloroform sensitive, the mutant which plates on strain 2.4.1 is chloroform resist ... | 1974 | 4547800 |
| control of delta-aminolevulinate synthetase activity in rhodopseudomonas spheroides. iii. partial purification of the fraction i activating enzyme and the occurrence of two forms of fraction ii. | | 1974 | 4548063 |
| membranes of photosynthetic bacteria. | | 1972 | 4557023 |
| [studies of carotenoids in rhodopseudomonas spheroides mutants]. | | 1972 | 4573748 |
| 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 ... | 1974 | 4590487 |
| the relation between h+-uptake and electron flow in chromatophores from photosynthetic bacteria. | | 1974 | 4597309 |
| nitrogen-limited continuous culture of rhodopseudomonas capsulata growing photosynthetically or heterotrophically under low oxygen tensions. | | 1974 | 4604821 |
| comparative studies on membranes isolated from rhodopseudomonas viridis grown in the presence and in the absence of yeast extract. | | 1974 | 4613313 |