Results 21 to 30 of about 14,221 (217)
Molecular evidence for sediment nitrogen fixation in a temperate New England estuary [PDF]
Primary production in coastal waters is generally nitrogen (N) limited with denitrification outpacing nitrogen fixation (N2-fixation). However, recent work suggests that we have potentially underestimated the importance of heterotrophic sediment N2 ...
Foster, Sarah Q. +3 more
core +3 more sources
Hydroponic Growth and the Nondestructive Assay for Dinitrogen Fixation [PDF]
Hydroponic growth medium must be well buffered if it is to support sustained plant growth. Although 1.0 millimolar phosphate is commonly used as a buffer for hydroponic growth media, at that concentration it is generally toxic to a soybean plant that derives its nitrogen solely from dinitrogen fixation.
J, Imsande, E J, Ralston
openaire +2 more sources
Recent research suggests that nitrogen (N) cycling microbes are important for coral holobiont functioning. In particular, coral holobionts may acquire bioavailable N via prokaryotic dinitrogen (N2) fixation or remove excess N via denitrification activity.
Arjen Tilstra +6 more
doaj +1 more source
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
Possible association of diazotrophs with marine zooplankton in the Pacific Ocean
Dinitrogen fixation, the biological reduction in N2 gas to ammonia contributes to the supply of new nitrogen in the surface ocean. To understand the diversity and abundance of potentially diazotrophic (N2 fixing) microorganisms associated with marine ...
Kazi Md. Azimuddin +9 more
doaj +1 more source
Draft genome sequence of Acidithiobacillus ferrooxidans YQH-1
Acidithiobacillus ferrooxidans YQH-1 is a moderate acidophilic bacterium isolated from a river in a volcano of Northeast China. Here, we describe the draft genome of strain YQH-1, which was assembled into 123 contigs containing 3,111,222 bp with a G + C ...
Lei Yan +6 more
doaj +1 more source
Springtime contribution of dinitrogen fixation to primary production across the Mediterranean Sea [PDF]
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
N2-fixation and residual N effect of four legume species and four companion grass species [PDF]
Inclusion of forage legumes in low-input forage mixtures improves herbage production and soil fertility through addition of nitrogen (N) from N2-fixation.
Eriksen, Jørgen +3 more
core +1 more source
Diazo Transfer From Nitrous Oxide Employing Phosphorus Ylides
A phosphorus ylide‐mediated strategy achieves the direct fixation of nitrous oxide (N2O) to access diazo compounds, which after intra‐ or intermolecular trapping, afford N2‐containing organic building blocks. This approach provides an alternative to hazardous diazo‐transfer reagents and establishes N2O fixation as a sustainable methodology.
Jhen‐Kuei Yu +4 more
wiley +2 more sources
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

