| gliding motility of algae in unaffected by cytochalasin b. | | 1973 | 4200833 |
| phycobilisomes from a blue-green alga nostoc species. | phycobilisomes were isolated from a nostoc sp. strain mac in phosphate buffer (ph 7.0) by treatment with 1% brij 56 and centrifugation on discontinuous sucrose gradients (2.0, 1.0, 0.5, and 0.25 m in the proportions 6:4:4:10 ml, respectively). absorption spectra of isolated phycobilisomes showed the presence of phycoerythrin, phycocyanin, and allophycocyanin. the phycobilisome pigments were partially resolved by electrophoresis on acrylamide gels. stained gels demonstrated that each main protein ... | 1973 | 4200843 |
| the labeling of nucleic acids by radioactive precursors in the blue-green algae anacystis nidulans and synechocystis aquatilis sanv. | | 1973 | 4201019 |
| effects of azide, thioglycollic acid, and nitrosoguanidine on growth and nitrogen fixation in different clones of the blue-green alga cylindrospermum majus. | | 1973 | 4201210 |
| [effect of carbon-containing compounds on the chromatic characteristics of anacystis nidulans blue-green algae]. | | 1973 | 4201591 |
| nitrogen fixation by photosynthetic microorganisms. | | 1973 | 4201690 |
| effect of restricted use of phosphate-based detergents on onondaga lake. | a marked decrease in the concentration of total inorganic phosphate in the epilimnion and hypolimnion of onondaga lake, new york state, has been observed during the 1(1/2) years between july 1971 and january 1973. this decrease has been correlated to the implementation of phosphate-limiting legislation. the response of characteristic plankton species has been investigated. | 1973 | 4202003 |
| nutritive value of processed saccharomyces cerevisiae, scenedesmus obliquus and spirulina platensis as measured by protein synthesis in vitro in rat skeletal muscle. | | 1973 | 4202021 |
| cyanophages-viruses attacking blue-green algae. | | 1973 | 4202147 |
| proceedings: freezing and freeze-drying of spirulina platensis. | | 1973 | 4202652 |
| method for the selective enumeration of blue-green bacteria in water. | a membrane filter method for the selective enumeration of blue-green bacteria has been developed which, on the basis of studies with laboratory cultures and field tests, has proved to be both practical and reproducible. the filters are incubated under specified conditions of temperature and illumination on a mineral salts agar medium supplemented with yeast extract and containing cycloheximide to eliminate eukaryotic contaminants. | 1973 | 4202705 |
| [respiration of the blue-green alga plectonema boryanum]. | | 1973 | 4202813 |
| alteration in heterocyst pattern of anabaena produced by 7-azatryptophan. | | 1973 | 4202839 |
| nitrogen fixation by anabaena cylindrica. ii. nitrogenase activity during induction and aging of batch cultures. | | 1973 | 4202933 |
| equations of substrate-limited growth: the case for blackman kinetics. | | 1973 | 4203180 |
| control of photosynthetic carbon metabolism. | | 1973 | 4203321 |
| reduction of nitrogenous oxides by microorganisms. | | 1973 | 4203393 |
| influence of certain pesticides on microorganisms. influence of ddt on the synthesis of the particular amino acids in chlorella vulgaris and anabaena cylindrica. | | 1973 | 4203421 |
| utilization of fructose by a unicellular blue-green alga, anacystis nidulans. | | 1973 | 4203476 |
| [combined effect of chemical compounds and gamma-radiation on cells of the blue-green alga anacystis nidulans]. | | 1973 | 4203668 |
| ferredoxins in the evolution of photosynthetic systems from anaerobic bacteria to higher plants. | | 1973 | 4203768 |
| [phenomonologic features of photomodification of radiation injuries in the blue-green alga plectonema boryanum]. | | 1973 | 4203882 |
| pattern formation in the blue-green alga anabaena. ii. controlled proheterocyst regression. | | 1973 | 4203959 |
| growth inhibition by l-phenylalanine in agmenellum quadruplicatum. a clue to some amino acid interrelationships. | | 1973 | 4204409 |
| precursor of 5s ribosomal ribonucleic acid in the blue-green alga anacystis nidulans. | the maturation of 5s ribosomal ribonucleic acid (rrna) in the obligately photoautotrophic unicellular blue-green alga anacystis nidulans has been studied by using polyacrylamide gel electrophoresis and t1 ribonuclease oligonucleotide analysis. a. nidulans mature 5s rrna (m5) is of approximately the same molecular weight as the 5s rrna of escherichia coli, and is derived by cleavage of a precursor (p5) containing a few (three to six) additional nucleotides. some of these additional nucleotides oc ... | 1974 | 4204437 |
| phycobilisomes in blue-green algae. | fifteen species of freshwater blue-green algae, including unicellular, filamentous, and colonial forms, were subjected to a variety of fixatives, fixation conditions, and stains for comparison of the preservation of phycobilisomes. absorption spectra of the corresponding in vivo and released photosynthetic pigments, in 10 of the species that were maintained in culture, demonstrated the presence of phycocyanin in all 10 species and phycoerythrin in only 2 of them. spectroscope and electron micros ... | 1974 | 4204443 |
| separation of photosynthetic systems i and ii. | | 1973 | 4204577 |
| [effect of carbon-containing compounds on the chromatic characteristics of the blue-green alga anacystis nidulans]. | | 1973 | 4204860 |
| documentation of auxotrophic mutation in blue-green bacteria: characterization of a tryptophan auxotroph in agmenellum quadruplicatum. | a tryptophan-requiring auxotroph of agmenellum quadruplicatum strain bg1, a species of blue-green bacteria, was isolated by means of a nitrosoguanidine-penicillin procedure. its growth characteristics were determined, and the enzymological block was identified in the a activity of tryptophan synthetase. starvation of the auxotroph for tryptophan resulted in the derepression of the synthesis of all five enzymes. the first four enzymes derepressed 2- to 3-fold, and tryptophan synthetase b derepres ... | 1972 | 4204902 |
| inhibition of metabolism by hydrostatic pressure: what limits microbial growth? | | 1973 | 4204950 |
| [molecular nitrogen fixation by microorganisms (review of work carried out in the ussr during the period 1966-1972)]. | | 1973 | 4205186 |
| [lysis of blue-green algae by an agent of nonviral character]. | | 1973 | 4205238 |
| growth of the blue-green alga tolypothrix tenuis as affected by cobalt and molybdenum. | | 1973 | 4205240 |
| homocysteine biosynthesis in green plants. o-phosphorylhomoserine as the physiological substrate for cystathionine gamma-synthase. | | 1974 | 4205315 |
| toxigenic algae. | | 1972 | 4205596 |
| [some characteristics of the behavior of the blue-green alga anabaena variabilis under conditions of darkness]. | | 1973 | 4205729 |
| [formation of the infectious form of the blue-green algae virus in plant tissue culture]. | | 1973 | 4205965 |
| the synthesis of fat and water soluble arseno organic compounds in marine and limnetic algae. | | 1973 | 4206263 |
| on the fine structure of the acidophilic hot-spring alga cyanidium caldarium: a taxonomic approach. | | 1972 | 4206412 |
| blue-green bacteria synthesise l-tyrosine by the pretyrosine pathway. | | 1974 | 4206476 |
| [n6-dimethylaminopurine in dna of algae species]. | | 1974 | 4206669 |
| nitrogen fixation--assay methods and techniques. | | 1972 | 4206744 |
| in vitro protein synthesis and measurement of the stability of messenger rna in the blue-green alga, anabaena variabilis. | | 1974 | 4207060 |
| the isolation of blue-green bacteria in pure culture. | | 1974 | 4207175 |
| blue-green algal proteins: assembly forms of c-phycocyanin from synechococcus sp. | | 1974 | 4207314 |
| radium uptake by fresh water algae. | | 1973 | 4207399 |
| heterotrophic potential for amino acid uptake in a naturally eutrophic lake. | the uptake of sixteen (14)c-labeled amino acids by the indigenous heterotrophic microflora of upper klamath lake, oregon, was measured using the kinetic approach. the year-long study showed a seasonal variation in the maximum uptake velocity, v(max), of all the amino acids which was proportional to temperature. the maximum total flux of amino acids by the heterotrophic microflora ranged from 1.2 to 11.9 mumol of c per liter per day (spring to summer). glutamate, asparagine, aspartate, and serine ... | 1974 | 4207581 |
| structure and function of plant microbodies. | | 1973 | 4207692 |
| [detection of the a-1 virus of the blue-green alga anabaena variabilis in the kremenchug artificial reservoir]. | | 1973 | 4207987 |
| the relationships between nitrogen fixation and photosynthesis. the third rubbo memorial oration, 1972. | | 1974 | 4208058 |
| autoradiographic localization of 13n after fixation of 13n-labeled nitrogen gas by a heterocyst-forming blue-green alga. | (13)n, generated by proton bombardment of (13)c powder, is rapidly and easily converted to (13)n-n(2), 0.01 atm pressure, ca. 10 mci/ml, by automated dumas combustion. (13)n fixed (as (13)n-n(2)) by algal filaments was localized by an autoradiographic technique which permits track autoradiography with isotopes having short half-lives. our findings show directly that a minimum of about 25% of the n(2) fixation by intact, aerobically grown filaments of anabaena cylindrica is carried out by the het ... | 1974 | 4208073 |
| novel ribonucleic acid species accumulated in the dark in the blue-green alga anacystis nidulans. | in the dark, the obligately photoautotrophic blue-green alga anacystis nidulans accumulates large relative amounts of two novel stable ribonucleic acid species (rnas). these species are also made in illuminated cells but are unstable in them. when darkened cells are reilluminated, these rnas are rapidly degraded; degradation is inhibited by chloramphenicol. upon denaturation with heat or urea, one novel species (0.33 x 10(6) daltons) dissociates into two fragments that comigrate with the second ... | 1974 | 4208132 |
| cell separation in blue-green bacteria. | autolysin-like enzymes appear to be responsible for cell separation in agmenellum quadruplicatum. mutants that are impaired in cell separation and grow as chains exhibit reduced cell lytic activity. lysozyme, extracted autolysin, and antibiotics that affect peptidoglycan synthesis phenotypically suppress chain formation. various aspects of the regulation of the cell separation process were also examined. studies involving antibiotic inhibitors of macromolecular synthesis and general growth inhib ... | 1974 | 4208139 |
| [a study of the dying off of blue-green algae in the dark]. | | 1974 | 4208198 |
| [electron microscopical investigations on paulinella chromatophora lauterborn, a thecamoeba containing blue-green endosymbionts (cyanelles) (author's transl)]. | | 1974 | 4208322 |
| [electron miscroscopic study of the morphogenesis of the blue-green algae virus]. | | 1973 | 4208366 |
| [properties of a filamentous mutant of the blue-green alga anacystis nidulans sensitive to radiation]. | | 1973 | 4208367 |
| the mechanism of uridine diphosphate-sugar-4-epimerase reactions. isotope discrimination with 4-tritiated substrates. | | 1974 | 4208471 |
| [effect of blue-green algal hydrolysate on candida tropicalis reproduction on a mineral medium with n-alkanes]. | | 1973 | 4208822 |
| methionine transfer rnas from the blue-green alga anacystis nidulans. | | 1974 | 4208972 |
| nitrogen metabolism and ultrastructure in anabaena cylindrica. i. the effect of nitrogen starvation. | | 1974 | 4209227 |
| [liberation of molecular hydrogen by cultures of blue-green algae]. | | 1973 | 4209236 |
| participation of two photosystems in the photo-phobotaxis of phormidium uncinatum. | | 1974 | 4209298 |
| recent studies on the origins of cellular organelles. | | 1973 | 4209315 |
| algicidal effect of 2,4-dichlorophenoxy acetic acid on blue-green alga cylindrospermum sp. | | 1974 | 4209487 |
| properties and function of the pyruvate: ferredoxin oxidoreductase from the blue-green alga anabaena cylindrica. | | 1974 | 4209549 |
| genetic transformation of the blue-green bacterium, anacystis nidulans. | | 1974 | 4209657 |
| nitrogenase activity and photosynthesis in plectonema boryanum. | nitrogen-starved plectonema boryanum 594 cultures flushed with n(2)/co(2) or a/co(2) (99.7%/0.3%, vol/vol) exhibited nitrogenase activity when assayed either by acetylene reduction or hydrogen evolution. oxygen evolution activities and phycocyanin pigments decreased sharply before and during the development of nitrogenase activity, but recovered in the n(2)/co(2) cultures after a period of active nitrogen fixation. under high illumination, the onset of nitrogenase activity was delayed; however, ... | 1974 | 4209777 |
| [temperate cyanophage a-4 (l) of the blue-green alga anabaena variabilis]. | | 1973 | 4209794 |
| the characterization of a bacillus capable of blue-green bactericidal activity. | | 1974 | 4209797 |
| absorption spectra of algal and chloroplast suspensions: a simple method using conventional spectrophotometers. | | 1973 | 4209983 |
| [infection of hela cells by the nucleic acids of lpp group algophages]. | | 1974 | 4210056 |
| [identification of lpp-1 virus isolates separated from artificial dnieper reservoirs]. | | 1974 | 4210057 |
| effect of photooxidative conditions on levels of superoxide dismutase in anacystis nidulans. | | 1974 | 4210153 |
| [comparative characteristics of the polynucleotide-peptide complexes isolated from various species of algae]. | | 1974 | 4210176 |
| the development and diversification of precambrian life. | | 1974 | 4210319 |
| [effect of radiosensitizer (monoiodoacetate) on the recovery of sublethally damaged cells of blue-green alga, anacystis nidulans]. | | 1974 | 4211026 |
| [reactivity of the volatile exometabolites of some blue-green algae, bacteria, fungi and actinomycetes]. | | 1974 | 4211622 |
| heterotrophic growth of the nitrogen fixing blue-green alga nostoc muscorum. | | 1974 | 4212052 |
| homology of amino-terminal regions of c-phycocyanins from a prokaryote and a eukaryote. | | 1974 | 4212057 |
| mutational analysis of dark endogenous metabolism in the blue-green bacterium anacystis nidulans. | we describe a mutant (strain 704) of the obligate photoautotroph anacystis nidulans which behaves like the wild type under continuous illumination but which in the dark rapidly loses viability, respires little, and incorporates label into ribonucleic acid and protein at rates considerably less than observed with the darkened wild type. extracts of this mutant strain show no detectable 6-phosphogluconate dehydrogenase (ec 1.1.1.44) activity. spontaneous revertants of mutant 704 were selected as s ... | 1974 | 4212183 |
| reversible inactivation by ammonia of assimilatory nitrate reductase in cyanidium caldarium. | | 1974 | 4212323 |
| role of some macro and microelements on the nitrogen fixation by the blue-green alga calothrix sp. | | 1974 | 4212329 |
| the use of an ultrasonic bath to disrupt cells suspended in volumes of less than 100 micro liters. | | 1974 | 4212458 |
| cause and identification of taste and odour compounds in water. | | 1974 | 4212982 |
| the isolation of gas vesicles from blue-green algae. | | 1974 | 4214028 |
| photochemical activity and components of membrane preparations from blue-green algae. ii. low-temperature photooxidation of cytochrome b559. | | 1974 | 4214171 |
| a sequence analysis of 5 s rrna from the blue-green alga oscillatoria tenuis and a comparison of blue-green alga 5 s rrna with those of bacterial and eukaryotic origin. | | 1974 | 4214272 |
| [possible role of cholesterol in cellular membranes]. | | 1974 | 4214364 |
| [oxygen consumption by blue-green algae]. | | 1974 | 4214568 |
| the program of protein synthesis during heterocyst differentiation in nitrogen-fixing blue-green algae. | | 1974 | 4214619 |
| [paths of photosynthetic assimilation of carbon dioxide in spirulina]. | | 1974 | 4214685 |
| control of macromolecular composition and cell division in the blue-green algae anacystis nidulans. | | 1974 | 4214895 |
| photosensitization of cyanophage n-1. | | 1974 | 4214899 |
| isolation and genetic mapping of temperature-sensitive mutants of cyanophage lpp2-spi. | | 1974 | 4215217 |
| one-step isolation of microbial ribulose-1,5-diphosphate carboxylase. | | 1974 | 4215394 |
| estimation of the genome size of blue-green algae from dna renaturation rates. | | 1974 | 4215395 |
| subunit structure of dna-dependent rna polymerase of anacystis nidulans. | | 1974 | 4215464 |
| [effect of caffeine and acriflavine on the survival of ultraviolet irradiated cyanophage am-1 in the cells of radiosensitive mutants of anacystis nidulans]. | | 1974 | 4215468 |
| isolation and characterization of allophycocyanin ii from the thermophilic blue-green alga mastigocladus laminosus cohn. | | 1974 | 4215676 |