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Dinitrogen fixation in aphotic oxygenated marine environments [PDF]

open access: yesFrontiers in Microbiology, 2013
We measured N2 fixation rates from oceanic zones that have traditionally been ignored as sources of biological N2 fixation; the aphotic, fully oxygenated, nitrate (NO3-)-rich, waters of the oligotrophic Levantine Basin (LB) and the Gulf of Aqaba (GA). N2
Eyal eRahav   +7 more
doaj   +6 more sources

Tropical carbon sink accelerated by symbiotic dinitrogen fixation [PDF]

open access: yesNature Communications, 2019
The contribution of symbiotic dinitrogen fixation to the forest carbon sink could change throughout forest succession. Here the authors model nitrogen cycling and light competition between trees based on data from Panamanian forest plots, showing that ...
Jennifer H. Levy-Varon   +6 more
doaj   +2 more sources

Theoretical Assessment of Dinitrogen Fixation on Carbon Atom [PDF]

open access: yesChemistry - an Asian Journal, 2021
Abstract Dinitrogen activation in non‐metallic systems has received considerable attention in recent years. Herein, we report the theoretical feasibility of N 2 fixation using aminocarbenes ( L ) or their anionic derivatives.
Hayoung Song, Eunsung Lee
exaly   +4 more sources

Contrasting seasonal responses in dinitrogen fixation between shallow and deep-water colonies of the model coral Stylophora pistillata in the northern Red Sea. [PDF]

open access: yesPLoS ONE, 2018
Tropical corals are often associated with dinitrogen (N2)-fixing bacteria (diazotrophs), and seasonal changes in key environmental parameters, such as dissolved inorganic nitrogen (DIN) availability and seawater temperature, are known to affect N2 ...
Vanessa N Bednarz   +6 more
doaj   +2 more sources

Effects of Water Column Mixing and Stratification on Planktonic Primary Production and Dinitrogen Fixation on a Northern Red Sea Coral Reef [PDF]

open access: yesFrontiers in Microbiology, 2018
The northern Red Sea experiences strong annual differences in environmental conditions due to its relative high-latitude location for coral reefs. This allows the study of regulatory effects by key environmental parameters (i.e., temperature, inorganic ...
Arjen Tilstra   +12 more
doaj   +2 more sources

Genetic algorithm-based re-optimization of the Schrock catalyst for dinitrogen fixation [PDF]

open access: yesPeerJ Physical Chemistry, 2023
This study leverages a graph-based genetic algorithm (GB-GA) for the design of efficient nitrogen-fixing catalysts as alternatives to the Schrock catalyst, with the aim to improve the energetics of key reaction steps. Despite the abundance of nitrogen in
Magnus Strandgaard   +5 more
doaj   +2 more sources

Hydrides mediate nitrogen fixation

open access: yesCell Reports Physical Science, 2022
Summary: The fixation of atmospheric dinitrogen to ammonia is crucial for the sustainable growth of human society. The reduction of N2 to NH3 needs the inputs of electrons and hydrogens, which could be supplied by hydridic hydrogens. Hydrides are thus at
Qianru Wang   +3 more
doaj   +1 more source

Direct synthesis of cyanate anion from dinitrogen catalysed by molybdenum complexes bearing pincer-type ligand

open access: yesNature Communications, 2022
Direct conversion of dinitrogen to organonitrogen compounds is a challenging goal in nitrogen fixation chemistry. Here, the authors report the catalytic formation of cyanate anion from dinitrogen under ambient conditions using a molybdenum complex.
Takayuki Itabashi   +8 more
doaj   +1 more source

Localized osmotic stress activates systemic responses to N limitation in Medicago truncatula–Sinorhizobium symbiotic plants

open access: yesFrontiers in Plant Science, 2023
In mature symbiotic root nodules, differentiated rhizobia fix atmospheric dinitrogen and provide ammonium to fulfill the plant nitrogen (N) demand. The plant enables this process by providing photosynthates to the nodules.
Marie-Laure Martin   +15 more
doaj   +1 more source

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