Results 1 to 10 of about 14,221 (217)

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

DRIVERS OF THE DYNAMICS OF DIAZOTROPHS AND DENITRIFIERS IN NORTH SEA BOTTOM WATERS AND SEDIMENTS [PDF]

open access: yesFrontiers in Microbiology, 2015
The fixation of dinitrogen (N2) and denitrification are two opposite processes in the nitrogen cycle. The former transfers atmospheric dinitrogen gas into bound nitrogen in the biosphere, while the latter returns this bound nitrogen back to atmospheric ...
Lucas eStal, Haoxin eFan, Henk eBolhuis
doaj   +3 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

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

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

N2 Fixation in the Eastern Arabian Sea: Probable Role of Heterotrophic Diazotrophs [PDF]

open access: yesFrontiers in Marine Science, 2017
Biogeochemical implications of global imbalance between the rates of marine dinitrogen (N2) fixation and denitrification have spurred us to understand the former process in the Arabian Sea, which contributes considerably to the global nitrogen budget ...
P. Kiran Kumar   +3 more
doaj   +2 more sources

Nutrient limitation of primary productivity in the Southeast Pacific (BIOSOPE cruise) [PDF]

open access: yesBiogeosciences, 2008
Iron is an essential nutrient involved in a variety of biological processes in the ocean, including photosynthesis, respiration and dinitrogen fixation. Atmospheric deposition of aerosols is recognized as the main source of iron for the surface ocean. In
S. Bonnet   +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

Home - About - Disclaimer - Privacy