Results 11 to 20 of about 4,318 (176)

Diazo Transfer From Nitrous Oxide Employing Phosphorus Ylides. [PDF]

Angew Chem Int Ed Engl
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.
Yu JK, Ludwig JN, Antoni PW, Tymann D, Hansmann MM.   +4 more
europepmc   +3 more sources

Catalytic nitrogen fixation using visible light energy

Nature Communications, 2022
The development of a nitrogen fixation process that relies on the renewable energy, such as visible light, is an important goal in sustainable chemistry. Here, authors establish an iridium and molybdenum-catalysed ammonia formation from dinitrogen driven
Yuya Ashida, Yuto Onozuka, Kazuya Arashiba, Asuka Konomi, Hiromasa Tanaka, Shogo Kuriyama, Yasuomi Yamazaki, Kazunari Yoshizawa, Yoshiaki Nishibayashi   +8 more
doaj   +1 more source

Dinitrogen Fixation in Male-Sterile Soybeans [PDF]

Plant Physiology, 1982
Partial male-sterile (ms(4)/ms(4)) soybeans (Glycine max L. Merr.) and their fertile isoline (Ms(4)/Ms(4)) were grown in adjoining field plots. From 62 until 92 days after emergence, the nitrogenase activity, assayed by acetylene reduction, of the average male-sterile plant was approximately twice that of the average fertile plant. At approximately 100
J, Imsande, E J, Ralston
openaire   +2 more sources

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

Frontiers 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   +1 more source

Role of molybdenum in dinitrogen fixation by Clostridium pasteurianum [PDF]

Journal of Bacteriology, 1975
The role of Mo in the activity and synthesis of the nitrogenase components of Clostridium pasteurianum has been studied by observing the competition of Mo with its structural analogue W. Clostridial cells when fixing N2 appeared strictly dependent upon the available Mo, showing maximal N2-fixing activity at molybdate concentrations in the media of 10 ...
J, Cardenas, L E, Mortenson
openaire   +2 more sources

Hydroponic Growth and the Nondestructive Assay for Dinitrogen Fixation [PDF]

Plant Physiology, 1981
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

Relative abundance of nitrogen cycling microbes in coral holobionts reflects environmental nitrate availability

Royal Society Open Science, 2021
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, Florian Roth, Yusuf C. El-Khaled, Claudia Pogoreutz, Nils Rädecker, Christian R. Voolstra, Christian Wild   +6 more
doaj   +1 more source

Possible association of diazotrophs with marine zooplankton in the Pacific Ocean

MicrobiologyOpen, 2016
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, Junya Hirai, Shotaro Suzuki, Md. Nurul Haider, Aiko Tachibana, Keigo Watanabe, Minoru Kitamura, Fuminori Hashihama, Kazutaka Takahashi, Koji Hamasaki   +9 more
doaj   +1 more source

Draft genome sequence of Acidithiobacillus ferrooxidans YQH-1

Genomics Data, 2015
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, Shuang Zhang, Weidong Wang, Huixin Hu, Yanjie Wang, Gaobo Yu, Peng Chen   +6 more
doaj   +1 more source

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, B. Herut, A. Levi, M. R. Mulholland, I. Berman-Frank   +4 more
doaj   +1 more source