Results 91 to 100 of about 6,680 (190)

Nitrogen fixation and nitrogenase activity of Azotobacter chroococcum

open access: yes, 1974
The purpose of the present investigation was to study the effect of some chemical, physical and biological factors on growth, efficiency of nitrogen fixation and nitrogenase activity of Azotobacter chroococcum.From biochemical studies with cell-free ...
Brotonegoro, S.
core  

Directed evolution of nitrogenase

open access: yes, 2023
Nitrogen-fixation, which converts gaseous nitrogen (N2) into bioavailable ammonia (NH3) is a critically important reaction in the biosphere. Industrial nitrogen-fixation is an energy- intensive chemical reaction that produces NH3-based fertilisers ...
Bennett, Emily
core   +1 more source

Nonnodulating Fagales retain the functional NODULE INCEPTION gene

open access: yesNew Phytologist, EarlyView.
NODULE INCEPTION orthologs are present in nonnodulating species in Fagales.
Momona Noda   +3 more
wiley   +1 more source

Aerobic nitrogen fixation in Azotobacter vinelandii

open access: yes, 1977
I ELECTRON DONATION TO NITROGENASEPaper I shows that the hypothesis, that a high ratio of (NADH + NADPH) / (NAD + + NADP + ) is the source of reducing power for nitrogenase in intact A.vinelandii, is invalid.
Haaker, H.B.C.M.
core  

Structure and Function of Nitrogenase

open access: yes, 1993
This chapter discusses the structures of the metal centers and polypeptide chains of the nitrogenase proteins based on the crystallographic structures of both the Fe-protein and the MoFe protein that have been determined at Caltech.
Chan, Michael K.   +5 more
core   +1 more source

GmDOF3.1‐GmCPX Module Regulates Nodulation and Nitrogen Fixation Abilities in Soybean

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Soybean nodule nitrogen fixation is very important, which can provide a large amount of nitrogen supply for its own growth and that of other crops, but the mechanism is largely unclear. In the present study, a coproporphyrinogen oxidase gene, GmCPX, was identified to facilitate soybean nodulation and nitrogen‐fixation under the regulation of ...
Xinzhu Xing   +10 more
wiley   +1 more source

Reduction of Substrates by Nitrogenases

open access: yesChemical Reviews, 2020
Nitrogenase is the enzyme that catalyzes biological N2 reduction to NH3. This enzyme achieves an impressive rate enhancement over the uncatalyzed reaction. Given the high demand for N2 fixation to support food and chemical production and the heavy reliance of the industrial Haber-Bosch nitrogen fixation reaction on fossil fuels, there is a strong need ...
Lance C. Seefeldt   +6 more
openaire   +4 more sources

Minimal ATP‐Independent N2‐Reducing Systems Defined by L‐Cluster‐Bound Nitrogenase Assembly Platforms

open access: yesAngewandte Chemie, Volume 138, Issue 24, 8 June 2026.
Association of the L‐cluster with the nitrogenase assembly proteins NifEN (NifENL) or NifB (NifBL) intrinsically endows these proteins with N2‐reducing activity, enabling in vitro N2‐reduction by NifENL and NifBL when supplied with chemical reductants or photoexcited quantum dots while supporting in vivo N2‐fixation in NifENL‐ and NifENL‐expressing ...
Robert Quechol   +4 more
wiley   +2 more sources

Effect of combined nitrogen on symbiotic nitrogen fixation in pea plants

open access: yes, 1979
The nitrogen-fixing activity of the symbiotic system of Pisum sativum with Rhizobium leguminosarum is adversely affected by combined nitrogen. Both ammonium chloride and potassium nitrate, when added to the roots, lower the nitrogenase activity ...
Houwaard, F.
core  

Systems‐Level Plant Responses Reveal Pseudomonas‐Mediated Growth Promotion in Brachypodium Under Nitrogen Limitation

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT Plant growth–promoting bacteria can enhance plant performance under nutrient limitation, yet the underlying plant molecular responses remain incompletely resolved. We investigated growth promotion by Pseudomonas koreensis in Brachypodium distachyon under contrasting nitrogen (N) regimes using time‐resolved phenotyping, elemental analysis ...
Stefan Sanow   +12 more
wiley   +1 more source

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