Results 161 to 170 of about 482,318 (212)
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1999
Abstract Biological N2 fixation is the conversion of atmospheric N2 to NH3 by bacteria. The reduction of the triple bond of N2 to form NH3 is performed under anaerobic conditions by the nitrogenase enzyme complex at the expense of 12-16 ATP with H2 as a by-product.
David D Myrold +2 more
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Abstract Biological N2 fixation is the conversion of atmospheric N2 to NH3 by bacteria. The reduction of the triple bond of N2 to form NH3 is performed under anaerobic conditions by the nitrogenase enzyme complex at the expense of 12-16 ATP with H2 as a by-product.
David D Myrold +2 more
openaire +1 more source
Dinitrogen Fixation in Illinois Bundleflower
Crop Science, 2004Symbiotic N2 fixation capacity may affect productivity of the perennial legume Illinois bundleflower [Desmanthus illinoensis (Michx.) MacMill. ex B.L. Rob. & Fernald]. Our objective was to estimate N2 fixation of three Illinois bundleflower accessions managed for forage.
Jaehyun Byun +5 more
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Journal of the American Chemical Society, 2019
Dinitrogen activation and reduction is one of the most challenging and important subjects in chemistry. Herein, we report the N2 binding and reduction at the well-defined Ta3N3H- and Ta3N3- gas-phase clusters by using mass spec-trometry (MS), anion ...
Yue Zhao +10 more
semanticscholar +1 more source
Dinitrogen activation and reduction is one of the most challenging and important subjects in chemistry. Herein, we report the N2 binding and reduction at the well-defined Ta3N3H- and Ta3N3- gas-phase clusters by using mass spec-trometry (MS), anion ...
Yue Zhao +10 more
semanticscholar +1 more source
Regulation of dinitrogen fixation in intact Azotobacter vinelandii
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1974Abstract 1. In intact Azotobacter vinelandii the influence of oxygen on the levels of oxidized nicotinamide adenine dinucleotides and adenine nucleotides in relation to nitrogenase activity was investigated. 2. The hypothesis that a high ( NADH + NADPH ) ( NAD + + NADP + ) is the driving force for the transport of reducing ...
H, Haaker, A, de Kok, C, Veeger
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New Avenues in Dinitrogen Fixation Research
Chemistry - A European Journal, 2001The present article focuses on a recent finding concerning dinitrogen fixation by using titanium oxide/conducting polymer composite systems and its comparison with an earlier fixation method (Schrauzer process) that makes use of a powdered titanium oxide.
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Dinitrogen fixation in the Indian Ocean
2009Several lines of geochemical evidence suggest that biological dinitrogen (N 2 ) fixation is a quantitatively important process in the marine nitrogen (N) cycle. However, global and basin-scale rates of N 2 fixation remain poorly constrained due to spatial and temporal under-sampling; this is particularly the case in the Indian Ocean (IO).
Margaret R. Mulholland +1 more
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Ligands for Dinitrogen Fixation at Schrock-Type Catalysts
Inorganic Chemistry, 2009Catalytic dinitrogen reduction with the Schrock complex is still hampered by low turn-over numbers that are likely to result from a degradation of the chelate ligand. In this work, we investigate modifications of the original HIPTN(3)N ligand applied by Schrock and co-workers in catalytic reduction of dinitrogen with density functional methods.
Schenk S, Reiher M
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Dinitrogen Complexes and Nitrogen Fixation
1971The formation of dinitrogen complexes from nitrogen gas is the only definite reaction of molecular nitrogen which is known to occur at ordinary temperature and pressure with reagents sufficiently mild to exist in water and other protic media. This reaction thus provides at present the only reasonable chemical model for the initial uptake of dinitrogen ...
J. Chatt, R. L. Richards
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ACS Applied Nano Materials, 2018
Dinitrogen (N2) is earth’s most abundant form of gas, and its photofixation into ammonia (NH3) is a sustainable solution.
Vidyasagar Devthade +2 more
semanticscholar +1 more source
Dinitrogen (N2) is earth’s most abundant form of gas, and its photofixation into ammonia (NH3) is a sustainable solution.
Vidyasagar Devthade +2 more
semanticscholar +1 more source
Dark Anaerobic Dinitrogen Fixation by a Photosynthetic Microorganism
Science, 1979Photosynthetic purple bacteria can grow with dinitrogen gas as the sole nitrogen source under anaerobic conditions with light as the energy source. The bacterium Rhodopseudomonas capsulata can fix nitrogen in darkness with alternative energy conversion systems, namely, anaerobic sugar fermentation and aerobic ...
M T, Madigan, J D, Wall, H, Gest
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