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Showing 1 to 20 of 50 for “"Anabaena"”.
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Probing substrate specificity of RNA repair protein Pnkp/Hen1 from Anabaena variabilis
… of a RNA-repair protein Pnkp/Hen1 from bacteria Anabaena Variabilis. Following the previous discovery of a RNA repair protein—Pnkp/Hen1, which can repair ribotoxin cleaved tRNA in vitro and can add a methyl group at the cleaved site to prevent further cleavage, this study investigated the RNA …
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Transferencia intercelular de nitrógeno en la cianobacteria formadora de heterocistos Anabaena sp. PCC 7120
… metabolismo del nitrógeno en la cianobacteria Anabaena sp. PCC 7120. Se han estudiado, por una parte, sistemas de transporte de aminoácidos y su implicación en el crecimiento a expensas de nitrógeno atmosférico y, por otra parte, la expresión de los genes del metabolismo del a cianoficina y su …
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Pathophysiologic effects of anatoxin-a(s), a toxin from the cyanobacterium Anabaena flos-aquae
… (antx-a(s)) or purified antx-a(s) from Anabaena flos-aquae NRC 525-17 were evaluated for effects on brain (whole brain or cortex, medulla, midbrain, hippocampus, hypothalamus, olfactory lobes, striatum, and the anterior cervical spinal cord) cholinesterase (ChE) in vivo after parenteral …
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Characterization of Two Genes Up-regulated During Heterocyst Development in the Cyanobacterium Anabaena sp. strain PCC 7120.
Anabaena sp. strain PCC 7120 is a cyanobacterium that carries out photosynthesis in a manner similar to plants and is capable of nitrogen fixation. This organism has developed a necessary spatial separation of the incompatible processes of photosynthesis and nitrogen fixation, as nitrogen fixation …
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Regulation of cell size and cell division in the filamentous cyanobacterium Anabaena: a paradigm of bacterial multicellularity
… así como en la longitud de los filamentos de Anabaena sp. PCC 7120, un modelo paradigmático de multicelularidad bacteriana. Esta cianobacteria crece como filamentos uniseriados en los cuales cada célula se comunica con las células adyacentes mediante unas estructuras proteicas llamadas septal …
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Characterization of IphP from Nostoc commune UTEX 584 and a Dual Specificity Protein Phosphatase from Anabaena PCC 7120
… evidence of protein tyrosine phosphorylation in Anabaena PCC 7120. In a collaborative effort with the laboratory of Dr. Potts, tyrosine phosphorylated proteins were identified in Anabaena utilizing several approaches, including comparative labelling with alpha- vs gamma-32P-ATP, phosphoamino acid …
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Synthetic Biology for Autotrophic and Heterotrophic Production of Ethanol
… <br />(2) Cyanobacterium <em>Anabaena</em> sp. PCC7120 was successfully engineered to produce and secrete biofuel ethanol using CO<sub>2</sub>, water and sunlight.<br />(3) Another attempt in this study was made to increase production of bioethanol in ethanol-producing …
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Characterization of the nifUHD cluster and a new myoglobin-like gene from Nostoc commune UTEX 584
… on N. commune UTEX 584 and two species of Anabaena (Anabaena sp. PCC 7120 and Anabaena variabilis). In N. commune UTEX 584 a protein with a molecular mass similar to that predicted for GlbN was detected. This protein was produced in increased amounts under the same growth conditions that …
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Algal nutrients: sources and patterns of flow in the Occoquan Watershed
… AGP was nitrate, whereas for the bluegreen alga Anabaena flosaquae, total phosphate gave the highest correlation coefficient. A graphic analysis of AGP versus nitrate-nitrogen concentration indicated that Selenastrum yield does not increase with nitrate concentration when orthophosphate …
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The Effects of Diesel Fuel on the Growth of Selected Freshwater Phytoplankton
… was unaffected by the water extract and Anabaena was temporarily inhibited, but recovered after the initial lag in growth. The three hydrocarbons heptadecane, hexadecane and nonadecane had varying effects on the algae. Heptadecane inhibited Chlamydomonas , but stimulated Scenedesmus. It …
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The Effect of Nitrates, pH, and Dissolved Inorganic Carbon Concentrations on the Extracellular Polysaccharide of Three Strains of Cyanobacteria Belonging to the Family Nostocaceae
Three strains of cyanobacteria (Anabaena PCC7120, A. variabilis and Nostoc commune), all belonging to the family Nostocaceae, were found to be capable of modulating the production and chemical composition of extracellular polysaccharides (EPS) in response to carbon and nitrogen availability as well …
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The Synthetic Biology of N2-Fixing Cyanobacteria for Photosynthetic Terpenoid Production
… flux in the nitrogen-fixing cyanobacterium <em>Anabaena</em> sp. PCC 7120 to engineered terpenoid sinks, namely, linalool (C<sub>10</sub>H<sub>18</sub>O) and farnesene (C<sub>15</sub>H<sub>24</sub>). Chapter 1 is a review of literature in the field of biofuels and cyanobacteria, and chapter 2 is …
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Estudio biofísico y enzimológico de las reacciones fotorreducción de compuestos oxidados de nitrógeno (Nitrato y Nitrito) NADP y glutatión en cianobacterias
… de la ferredoxina-NADP+ oxido-reductasa de Anabaena sp. 7119. 8. El proceso de interconversión redox mediado por el par NADPH/NADP+ es una característica intrínseca de la ferredoxina-NADP+ oxido-reductasa purificada de Anabaena sp. 7119. 9. Aunque la interconversión redox implica reducción y …
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Variação da estrutura e da biomassa fitoplanctônica na Lagoa Itapeva (Litoral Norte do Rio Grande do Sul) em função da hidrodinâmica
… Este fato deve-se principalmente às florações de Anabaena circinalis durante as campanhas sazonais. A biomassa foi a variável que melhor se relacionou com os fatores físicos (nível d’água e velocidade média do vento) pela ação dos ventos de quadrantes predominantes que resultavam num fetch efetivo …
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Prediction of temporal and spatial phytoplankton change in Rutland Water
… The timing of blooms of Aphanizomenon and Anabaena was influenced by thermal stratification. Substantial blooms of Microcystis and Ceratium were rare. Autumnal diatom blooms did occur with blue-green species dominating in the winter. Cryptomonads and Rhodomonas (r-selected species) occurred …
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Enhancing the Industrial Potential of Filamentous Cyanobacteria
… with a 20% improvement in linalool tolerance, Anabaena variabilis ATCC 29413 with a 60% improvement in linalool tolerance, and Anabaena sp. PCC 7120 with a 220% improvement in farnesene tolerance. To determine the optimal nitrogen source, dinitrogen (N2 gas) was compared to various fixed …
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Effects of Low Bioavailable Nitrogen and Phosphorus on Cyanobacteria Dynamics in Eutrophic Lake Erie
… from <i>Microcystis</i> to the N-fixing <i>Anabaena</i>. Furthermore, during 2011, the concentration of the cyanotoxin microcystin was highly correlated with <i>Anabaena</i> biovolume. Genetic diversity of the <i>Microcystis</i> population was assessed during 2011 and showed that diversity …
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