Results 31 to 40 of about 309,635 (167)
Springtime contribution of dinitrogen fixation to primary production across the Mediterranean Sea [PDF]
Ocean Science, 2013 Dinitrogen (N2) fixation rates were measured during early spring across the different provinces of Mediterranean Sea surface waters. N2 fixation rates, measured using 15N2 enriched seawater, were lowest in the eastern basin and increased westward with a ...
E. Rahav +4 more
doaj +1 more source
Scientific Reports, 2017 In the most studied rhizobium-legume interactions, the host plant supplies the symbiont with homocitrate, an essential co-factor of the nitrogenase enzyme complex, via the expression of a nodule-specific homocitrate synthase FEN1.
Nico Nouwen +6 more
doaj +1 more source
Microbial Cell Factories, 2023 Background Biological nitrogen fixation converting atmospheric dinitrogen to ammonia is an important way to provide nitrogen for plants. Pseudomonas stutzeri DSM4166 is a diazotrophic Gram-negative bacterium isolated from the rhizosphere of cereal ...
Guangle Yu +6 more
doaj +1 more source
Gain‐of‐Function Engineering of the NifEN Scaffold Into a Self‐Assembling Nitrogenase
Angewandte Chemie, Volume 138, Issue 45, 2 November 2026.From scaffold to enzyme: Systematic engineering of the cofactor maturation scaffold NifEN reconstructs the P→M electron relay along with cofactor coordination and proton gating at the S2B site, converting NifEN into a functional nitrogenase capable of ATP‐dependent N2 reduction both in vitro and in vivo.
Yimo Yang +4 more
wiley +2 more sources
Structural consequences of turnover-induced homocitrate loss in nitrogenase
Nature Communications, 2023 Nitrogenase catalyzes the ATP-dependent reduction of dinitrogen to ammonia during the process of biological nitrogen fixation that is essential for sustaining life.
Rebeccah A. Warmack +5 more
doaj +1 more source
Diazotroph-Derived Nitrogen Assimilation Strategies Differ by Scleractinian Coral Species
Frontiers in Marine Science, 2021 Reef-building corals generally thrive in nutrient-poor tropical waters, where among other elements, nitrogen (N) availability often limits primary productivity.
Valentine Meunier +6 more
doaj +1 more source
Reactivity and Structure of Complexes of Small Molecules: Dinitrogen
, 2021 International audienceIn this contribution, a comprehensive review of the coordination chemistry of dinitrogen since 2003 is presented. Tremendous advances have been achieved during this time frame on the activation and functionalization of dinitrogen, i.
Mézailles, Nicolas, Nicolas Mézailles
core +1 more source
Symbioses between cyanobacterial communities and feather mosses in boreal forests and consequences for dinitrogen fixation [PDF]
, 2013 Feather moss-cyanobacteria associations, although still poorly understood, are recognised as essential for the regulation of nitrogen (N) input into N-limited ecosystems such as boreal forests due to their ability to carry out N2-fixation.
Bay, Guillaume
core +1 more source
Preliminary estimates of the contribution of Arctic nitrogen fixation to the global nitrogen budget
Limnology and Oceanography Letters, 2017 Dinitrogen (N2) fixation is the source of all biologically available nitrogen on earth, and its presence or absence impacts net primary production and global biogeochemical cycles.
Rachel E. Sipler +6 more
doaj +1 more source
Methodological underestimation of oceanic nitrogen fixation rates. [PDF]
PLoS ONE, 2010 The two commonly applied methods to assess dinitrogen (N(2)) fixation rates are the (15)N(2)-tracer addition and the acetylene reduction assay (ARA). Discrepancies between the two methods as well as inconsistencies between N(2) fixation rates and biomass/
Wiebke Mohr +3 more
doaj +1 more source