Publications

fixation of phycobiliproteins to photosynthetic membranes by glutaraldehyde.		1970	4097069
free amino acid composition of some nitrogen fixing blue-green algae in heterocystous and non-heterocystous conditions.		1970	4983791
biosynthesis of hydrocarbons in anabaena variabilis. incorporation of [methyl-14c]- and [methyl-2h3]methionine into 7- and 8-methylheptadecanes.		1970	4983882
gliding in a blue-green alga: a possible mechanism.		1970	4984867
pollution: enriching the waters.		1970	4985008
biological nitrogen fixation.		1970	4985009
soluble nitrogenase from vegetative cells of the blue-green alga anabaena cylindrica.		1970	4985100
effects of chemicals on fischerella muscicola (thuret) gom.		1970	4985484
the reproductive cycle of cyanophage lpp1-g in plectonema boryanum and its dependence on photosynthetic and respiratory systems.		1970	4985559
biological nitrogen fixation in lake erie.	biological nitrogen fixation, as determined by acetylene reduction, occurs in lake erie. fixation potential by blue-green algae in situ in water and by bacteria in collected sediments was demonstrated. nitrogen-fixing activity occurred from june through november suggesting that it is significant over the extremes of seasonal variation in light, temperature, and nutrients.	1970	4986715
effect of herbicides on growth and nitrogen-fixation of alga, tolypothrix tenuis.		1970	4986828
biosynthesis of phytoquinones. homogentisic acid: a precursor of plastoquinones, tocopherols and alpha-tocopherolquinone in higher plants, green algae and blue-green algae.	1. by means of (14)c tracer experiments and isotope competition experiments the roles of d-tyrosine, p-hydroxyphenylpyruvic acid, p-hydroxyphenylacetic acid, phenylacetic acid, homogentisic acid and homoarbutin (2-methylquinol 4-beta-d-glucoside) in the biosynthesis of plastoquinones, tocopherols and alpha-tocopherolquinone by maize shoots was investigated. it was established that d-tyrosine, p-hydroxyphenylpyruvic acid and homogentisic acid can all be utilized for this purpose, whereas p-hydrox ...	1970	4986835
[composition in mineral elements of 2 cyanophycea, spirulina platensis (gom.) geitler and sp. geitleri j. de toni].		1970	4987003
action of mutagenic chemicals on anacystis nidulans. v. diethyl sulphate.		1970	4987230
the effect of maleic hydrazide on growth and mutation of a blue-green alga.		1970	4987231
composition of the cellular envelopes of anabaena cylindrica.	comparative chemical analyses were made of the walls of vegetative cells, heterocysts, and spores, and of the mucilage of anabaena cylindrica. the wall of the vegetative cell is composed predominantly of amino compounds, with a mannose-rich carbohydrate component comprising only 18% of the dry weight. in contrast, 62% of the heterocyst wall and 41% of the spore wall is carbohydrate. the carbohydrate moieties of the heterocyst wall and spore wall are similar in that the ratio of glucose, mannose, ...	1970	4987305
wall development and tetrazolium chloride reduction in heterocysts of blue-green algae, anabaena ambigua.		1970	4987427
major paraffin constituents of microbial cells with particular references to chromatium sp.		1970	4987617
phanerozoic stromatolites: noncompetitive ecologic restriction by grazing and burrowing animals.	the abundance of stromatolites (algal laminated sedimentary structures) in the precambrian followed by a decline in the phanerozoic is explained by the evolution and diversification during the phanerozoic of grazing animals which feed on surface algal mats and of burrowing animals which destroy sedimentary laminations.	1970	4987788
[polyacrylamide gel electrophoresis of proteins of spirulina platensis (gom.) geitler and spirulina geitleri j. de toni].		1970	4987939
growth characteristics of selected mutants of a coccoid blue-green alga.		1970	4988021
[the carotenoid pattern and the occurrence of the light-induced xanthophyll cycle in various classes of algae. iv. cyanophyceae and rhodophyceae].		1970	4988022
characteristics of a stable, filamentous mutant of a coccoid blue-green alga.	filamentous mutants were induced in a coccoid blue-green alga, agmenellum quadruplicatum strain bg1, after treatment with n-methyl-n'-nitro-n-nitrosoguanidine (ntg). the mutants fall into two general classes: filaments with cross walls and filaments without cross walls. all mutants of these general types derived from bg1 are stable and have growth rates the same as or very similar to the wild type under a variety of conditions. detailed examination of one mutant, 53sb2, revealed no difference in ...	1970	4988043
a multiple origin for plastids and mitochondria.	the impressive homologies between mitochondria and plastids, on the one hand, and procaryotic organisms, on the other, make it almost certain that these important cellular organelles had their origin as independent organisms. the vast number of symbiotic relationships of all degrees of evolutionary antiquity which have been found in contemporary organisms point to the ease with which such relationships can be established.	1970	4988062
purification of a blue-green algal deoxyribonucleic acid photoreactiving enzyme. an enzyme requiring light as a physical cofactor to perform its catalytic function.		1970	4989609
mutations of anacystis nidulans that affect cell division.		1970	4989716
identification and analysis of a lipopolysaccharide in cell walls of the blue-green alga anacystis nidulans.		1970	4989717
phylogeny and morphogenesis in the algae.		1970	4988900
on biological nitrogen fixation in nature, particularly in blue-green algae.		1970	4988906
assay of algal nitrogen fixation in the marine subtropics by acetylene reduction.		1970	4988958
possible evolutionary significance of polyunsaturated fatty acids in blue-green algae.		1970	4988959
excessive emotion about detergents.		1970	4988713
the evolution of photosynthesis.		1970	4985766
properties of a blue-green algal sheath.		1970	4985791
purification and separation of alpha- and beta-galactosidases from spinach leaves.		1970	4315053
temporal genetic mapping of the blue-green alga, anacystis nidulans.		1970	4326453
[effect of antibodies against ferredoxin-nadp-reductase from spinach on photosynthetic reactions in a cell-free system of anacystis nidulans].		1970	4393161
electron transport and oxidative phosphorylation in the blue-green alga anabaena variabilis.		1970	4396974
the similarity of tryptophan synthetases of anabaena variabilis and chlorella ellipsoidea with that of bacteria.		1970	4993405
some aspects of the localization of phycobiliproteins in the rhodophyceae and the cyanophyceae.		1970	4993444
[biosynthesis of thiamine, riboflavin and vitamin b12 by some blue-green algae].		1970	4993968
effect of azide & glycine on heterocyst development in anabaena ambigua rao.		1970	4992839
nitrogenase activity in extracts of heterocystous and non-heterocystous blue-green algae.		1970	4992980
lpp-1 infection of the blue-green alga plectonema boryanum. i. electron microscopy.	one-step growth and intracellular growth experiments were performed at high multiplicities of the virus lpp-1 during the infection of the blue-green alga plectonema boryanum. the eclipse period lasts until 4 hr after infection, the latent period terminates at 6 hr, and the rise period continues until 14 to 16 hr after infection. the burst size was independent of multiplicity of infection over the ranges from 1 to 50. the burst size was 3,000 to 5,000 plaque-forming units (pfu) per infectious cen ...	1970	4992998
lpp-1 infection of the blue-green alga plectonema boryanum. ii. viral deoxyribonucleic acid synthesis and host deoxyribonucleic acid breakdown.	host and viral deoxyribonucleic acid (dna) metabolism in lpp-1-infected plectonema boryanum was studied by equilibrium centrifugation in cscl gradients. approximately 50% of the host dna is degraded to acid-soluble material between 3 and 7 hr after infection. most of the acid-soluble product is reincorporated into viral dna. incorporation of exogenous (3)h-adenine into viral dna can be detected very early after infection (within the first 2 hr), but the bulk of viral dna synthesis occurs between ...	1970	4992999
lpp-1 infection of the blue-green alga plectonema boryanum. 3. protein synthesis.	the structural proteins of mature lpp-1 particles and the patterns of protein synthesis after lpp-1 infection have been examined by electrophoresis on sodium dodecyl sulfate polyacrylamide gels. structural proteins account for 35% of the lpp-1 genome, and proteins that would require about 65% of the total coding capacity have been detected after infection. the major head proteins have molecular weights of 39,000 and 13,000, whereas the major tail protein is an 80,000-molecular-weight species. ho ...	1970	4993000
low-temperature (4-77 degrees k) spectroscopy of anacystis: temperature dependence of energy transfer efficiency.		1970	4993243
[metabolically active spheroplasts of blue-green algae].		1970	4993267
[glucokinase activity of some green and blue-green algae].		1970	4990492
[1st and 2d derivatives of the absorption spectrum of chlorophyll and accompanying pigments in the cells of higher plants and algae at 20 degrees c].		1970	4990547
[comparative study of lipids of spirulina platensis (gom.) geitler and spirulina geitleri j. de toni].		1970	4990601
[interrelations between populations of the blue-green alga plectonema boryanum gom. and cyanophage lpp-l].		1970	4990618
lysis of blue-green algae by myxobacter.	enrichment from local fishponds led to the isolation of a bacterium capable of lysing many species of unicellular and filamentous blue-green algae, as well as certain bacteria. the isolate is an aflagellate, motile rod which moves in a gliding, flexuous manner; the organism is capable of digesting starch and agar, but not cellulose and gelatin. its deoxyribonucleic acid base pair composition (per cent guanine plus cytosine approximately 70) shows a close resemblance to that of the fruiting myxob ...	1970	4990764
one-dimensional pattern found in blue-green algae.		1970	4990855
[properties of inner membrane lipoproteins of the blue-green alga, anacystis nidulans].		1970	4991820
the effect of light on growth and development of two nitrogen fixing blue-green algae.		1970	4992044
nitrogenase activity in the blue-green alga plectonema boryanum strain 594.		1970	4992219
organization of polyaromatic biosynthetic enzymes in a variety of photosynthetic organisms.	sucrose density gradient centrifugation was used to estimate the molecular weights and determine possible physical aggregation of the enzymes catalyzing steps 2 to 6 in pre-chorismic acid polyaromatic biosynthesis in anabaena variabilis, chlamydomonas reinhardi, euglena gracilis, nicotiana tabacum, and physcomitrella patens. in a. variabilis, the five enzymes are separable. similar results were obtained for p. patens, n. tabacum, and c. reinhardi extracts, except that dehydroshikimate reductase ...	1970	4992369
[molybdenum requirements of several nitrogen-fixing blue-green algae].		1970	4992443
[correlation between the magnitudes of ionic currents through the plasmolemma and tonoplast of characeae].		1970	4990430
eukaryotes versus prokaryotes: an estimate of evolutionary distance.	the divergence of nucleated organisms and bacteria was 2.6 times more remote in evolution than the divergences of the nucleated organisms into sparate kingdoms, as evidenced by genetic changes in cytochrome c and transfer rna. the development of the genetic code through the differentiation of transfer rna's for different amino acids was still more remote in evolution. the overall states of transfer rna evolution in bacteria and nucleated organisms were comparable.	1970	4986522
absence of the pigments of photosystem ii of photosynthesis in heterocysts of a blue-green alga.		1970	4990051
sensitivity and resistance of a blue-green alga phormidium mucicola to streptomycin and penicillin.		1970	4990326
[role of a sulfur-containing polynucleotide peptide complex in cell division in chlorella vulgaris].		1970	4990338
evidence for genetic transformation in blue-green alga anacystis nidulans.		1970	4999302
[biosynthesis of biotin, pyridoxine, nicotinic and pantothenic acids by some blue-green algae].		1970	4996242
photostimulation of nitrogen fixation in anabaena cylindrica.		1970	4994160
temperature effects on the sorption of radionuclides by freshwater algae.		1970	4998199
[physical and chemical properties of dna in blue-green alga anacystis nidulans].		1970	4996784
[nitrogen-fixing ability of blue-green algae in paddy fields in the south of the ukrainian ssr].		1970	4996785
thermophilic blue-green algae and the thermal environment.	[this corrects the article on p. 485 in vol. 33.].	1970	16350215
glycolic acid oxidase activity in cell-free preparations of blue-green algae.	glycolic acid oxidase activity was detected in cell-free preparations of anabaena flos-aquae and oscillatoria sp. by the reduction of 2,6-dichlorophenolindophenol and by the formation of glyoxylate. enzyme activity was localized in the 20,000 times gravity supernatant fraction, and optimal activity was obtained at ph 8.0. activity was lost on storing the preparation at 4 c and could not be restored by addition of flavin mononucleotide.oxidase activity of the supernatant fraction of oscillatoria ...	1970	16657383
lipid composition of cyanidium.	the major lipids in cyanidium caldarium geitler are monogalactosyl diglyceride, digalactosyl diglyceride, plant sulfolipid, lecithin, phosphatidyl glycerol, phosphatidyl inositol, and phosphatidyl ethanolamine. fatty acid composition varies appreciably among the lipids, but the major ones are palmitic acid, oleic acid, linoleic acid, and moderate amounts of stearic acid. trace amounts of other acids in the c(14) to c(20) range were also present. moderate amounts of linolenic acid were found in t ...	1970	16657541
[effect of blue-green algae on growth of rice seedlings].		1971	4997180
regulation of the sequencing in sterol biosynthesis.		1971	4997338
[isolation and characteristic propertyies of dna of the blue-green algae anacystic nidulans].		1971	4997702
subunit structure of the phycobiliproteins of blue-green algae.	the phycobiliproteins of the blue-green algae synechococcus sp. and aphanocapsu sp. were characterized with respect to homogeneity, isoelectric point, and subunit composition. each of the biliproteins consisted of two different noncovalently associated subunits, with molecular weights of about 20,000 and 16,000 for phycocyanin, 17,500 and 15,500 for allophycocyanin, and 22,000 and 20,000 for phycoerythrin. covalently bound chromophore was associated with each subunit.	1971	4997755
light-induced shifts in pigment absorption in green, red and blue-green algae.		1971	4997844
[cobalt requirement in some nitrogen-fixing blue-green algae].		1971	4997858
apparent lack of control by repression of arginine metabolism in blue-green algae.	five anabolic and two catabolic enzymes of arginine metabolism were neither repressed nor induced after inclusion of arginine in the growth medium of anabaena variabilis.	1971	4998248
purification and properties of unicellular blue-green algae (order chroococcales).		1971	4998365
the effect of caffeine and light on killing of the blue-green alga anabaena doliolum by ultraviolet radiation.		1971	4998568
chloroplast structure of the cryptophyceae. evidence for phycobiliproteins within intrathylakoidal spaces.	selective extraction and morphological evidence indicate that the phycobiliproteins in three cryptophyceaen algae (chroomonas, rhodomonas, and cryptomonas) are contained within intrathylakoidal spaces and are not on the stromal side of the lamellae as in the red and blue-green algae. furthermore, no discrete phycobilisome-type aggregates have thus far been observed in the cryptophyceae. structurally, although not necessarily functionally, this is a radical difference. the width of the intrathyla ...	1971	5543400
[isolation of the endocyanelles from glaucocystis nostochinearum itz. by means of a continuous flow homogenizer with variable internal diameter and chemical characterization of the coat membrane].		1971	4994342
experimental determination of the molar differential extinction coefficient of p700.		1971	4994398
increased content of cytochromes 554 and 562 in anabaena variabilis cells grown in the presence of diphenylamine.		1971	4994399
enhancement of algal growth in cyanophyta-bacteria systems by carbonaceous compounds.		1971	4994556
absence of histone in the blue-green alga anabaena cylindrica.		1971	4996297
analysis of blue-green and red algal ribosomal-rnas by gel electrophoresis.		1971	4996393
nitrogen fixation by unicellular blue-green algae.		1971	4996394
pigment variations in ultraviolet-treated strains of the blue-green alga anabaena doliolum.		1971	4996686
endogenous dark respiration of the blue-green alga, plectonema boryanum.	endogenous dark respiration in the blue-green alga plectonema boryanum is markedly affected by preincubation in the light: it can be increased from a basal rate of 5 nmoles of o(2) to 55 nmoles of o(2) per mg of cell protein per min after exposure of the cells to light for 8 to 10 hr. under conditions of enhanced dark respiration, cyanophage multiplication in the dark increases drastically and approaches the cyanophage yields obtained in photosynthesizing plectonema cells. this implies that the ...	1971	4994602
the oldest fossils.		1971	4994765
perspectives in biological nitrogen fixation.		1971	4994850
heterocyst formation and nitrogenase synthesis in anabaena sp. a kinetic study.		1971	4994860
growth responses of blue-green algae to sodium chloride concentration.		1971	4994861
renaturation of dna from the blue-green alga lyngbya sp.		1971	4994950
[incorporation of 3h-thymidine, 3h-uridine and 3h-leucine in the blue alga spirulina platensis (gom.) geitler].		1971	4995635
laser-induced reactions of p700 and cytochrome f in a blue-green alga, plectonema boryanum.		1971	4995801
3-(3,4-dichlorophenyl)-1, 1-dimethylurea-insensitive oxygen production in a cell-free preparation from phormidium luridum that shows redox potential dependent coupling to one-electron oxidants.		1971	4995803