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2021
Decades of N2 fixation research have uncovered many details of the intricacies and complexity of Biological N2 Fixation (BNF), from the evolutionary path of the enzyme to the diversity of microorganisms, the biochemistry of the reaction, and the underlying genetics.
Jonathan P. Zehr, Douglas G. Capone
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Decades of N2 fixation research have uncovered many details of the intricacies and complexity of Biological N2 Fixation (BNF), from the evolutionary path of the enzyme to the diversity of microorganisms, the biochemistry of the reaction, and the underlying genetics.
Jonathan P. Zehr, Douglas G. Capone
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Factors Controlling N2 Fixation
2021A range of factors can affect diazotrophs, their growth and physiological performance in the oceans. These include physical factors such as temperature, light, pressure and turbulence and chemical factors such as O2, inorganic nutrient and trace metal concentrations. Light availability is of greatest importance to phototrophic diazotrophs.
Jonathan P. Zehr, Douglas G. Capone
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2021
The quantitative input of N by N2 fixation is a key area of research that is important for placing marine N2 fixation in the context of other global input and removal terms for N budgets. Research has proceeded in the water column and benthos using a variety of approaches from extrapolating field measurements to larger areas, using geochemical proxies ...
Jonathan P. Zehr, Douglas G. Capone
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The quantitative input of N by N2 fixation is a key area of research that is important for placing marine N2 fixation in the context of other global input and removal terms for N budgets. Research has proceeded in the water column and benthos using a variety of approaches from extrapolating field measurements to larger areas, using geochemical proxies ...
Jonathan P. Zehr, Douglas G. Capone
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Catalysis Today, 2015
Nitrogen is the most basic element responsible for the growth of living creatures on earth. Chemical nitrogen fixation process is one of the most important chemical processes, which sustains the growing global population. Wherein the life changing Haber-Bosch process comes into the picture, which produces more than 130 million tons of ammonia per year ...
B.S. Patil, Q. Wang, V. Hessel, J. Lang
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Nitrogen is the most basic element responsible for the growth of living creatures on earth. Chemical nitrogen fixation process is one of the most important chemical processes, which sustains the growing global population. Wherein the life changing Haber-Bosch process comes into the picture, which produces more than 130 million tons of ammonia per year ...
B.S. Patil, Q. Wang, V. Hessel, J. Lang
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N2-fixation (N2-ase activity) inAzospirillum strains
Proceedings / Indian Academy of Sciences, 1988The nitrogenase activity (N2-fixation) ofAzospirillum isolated from the root region of C4 Digitaria, Chloris, Cynodon, Dichanthium, Lasiurus andCenchrus growing in different tracts of Rajasthan, was studied in spot batch cultures on sodium malate medium both under air and 1% oxygen at regular intervals of 24 h for a span of 7 ...
V M Rao +4 more
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No N2 fixation in the Bay of Bengal?
2020<p>The Bay of Bengal (BoB) has long stood as a biogeochemical enigma with subsurface waters containing extremely low, but persistent, concentrations of oxygen (O<sub>2</sub>) in the nanomolar range which - for some, yet unconstrained reason- are prevented from becoming anoxic.
Carolin Löscher +3 more
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N2-fixation in Erwinia herbicola
Archives of Microbiology, 1979Four from 18 strains of Erwinia herbicola tested had nitrogenase activity and grew with N2 as sole source of nitrogen under strict anaerobic conditions with a doubling time of 20–24 h. Nitrogenase activity started only 96–120 h after transfer to a special medium maintained under anaerobic conditions.
Hans Papen, Dietrich Werner
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N2 fixation by purified components of the N2-fixing system of Clostridium pasteurianum
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 1968Abstract 1. N 2 fixation, reductant-supported ATP utilization and ATP-dependent H 2 evolution are catalyzed by combined molybdoferredoxin and azoferredoxin, the two purified components of the N 2 -fixing system of Clostridium pasteurianum . No additional protein components are needed. At this stage of purity, neither of the two components of the N
I R, Kennedy +2 more
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Enhanced photocatalytic N2 fixation by promoting N2 adsorption with a co-catalyst
Science Bulletin, 2019Photocatalytic N2 fixation involves a nitrogen reduction reaction on the surface of the photocatalyst to convert N2 into ammonia. Currently, the adsorption of N2 is the limiting step for the N2 reduction reaction on the surface of the catalyst. Based on the concept of photocatalytic water splitting, the photocatalytic efficiency can be greatly enhanced
Xiang, Gao +7 more
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Inhibition of N2 Fixation by H2
1984Li and Burris (Biochemistry, in press) demonstrated the formation of HD from D2 with nitrogenase preparations from Azotobacter vinelandii, Clostridium pasteurianum, Klebsiella pneumoniae and Azospirlllum sp. From these observations it is concluded that the ability to form HD is a general property of nitrogenases.
Joseph H. Guth, Robert H. Burris
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