Results 291 to 300 of about 225,493 (345)
Some of the next articles are maybe not open access.

Biological Nitrogen Fixation

2005
Nitrogen (N2) fixation is the basis of the global N cycle. Therefore, it is not surprising that the ability to fix atmospheric N2 evolved in the “primeval soup” and is deeply rooted in the evolutionary tree of life. Despite this, nitrogenase remains an enzyme exclusive to prokaryotes; no eukaryote has been described that can fix N2 except through a ...
Giller, K.E., Mapfumo, P.
  +6 more sources

Biological Nitrogen Fixation.

The Journal of Applied Ecology, 1985
And he gave it for his opinion, that whoever could make two ears of corn or two blades of grass to grow upon a spot of ground where only one grew before, would deserve better of mankind, and do more essential service to his country than the whole race of politicians put together. {Jonathan Swift, ‘Gulliver's Travels’, Voyage to Brobdingnag, Ch. 7.)
J. I. Sprent, M. Alexander
openaire   +2 more sources

Biological Nitrogen Fixation

2015
Biological nitrogen fixation is a process by which nitrogen in the atmosphere is converted into ammonia. Legumes also include major food and feed crop species, such as soybean, pea, clover, chickpea, alfalfa, and mungbean, representing the second largest group of food and feed crops grown globally.
de Bruijn, Frans Johannes   +1 more
  +5 more sources

Biological Nitrogen Fixation

Annual Review of Plant Physiology, 1978
INTRODUCTION 263 DEREPRESSION OF THE NIF GENES 264 ENERGY COST OF N, FIXATION 266 Nitrogenase-Catalyzed H2 Evolution 267 Apparent ATP Requirement ...
K T Shanmugam   +3 more
openaire   +1 more source

Biological nitrogen fixation.

2002
This paper discusses the processes of nodulation and nitrogen fixation among Leguminosae tree species usually used in different agroforestry systems. Also included are the microbiological methods for studying rhizobia, the different methods used in determining whether a legume could fix nitrogen, isotope-based methods for nitrogen fixation measurement,
openaire   +1 more source

Nitrogenase and biological nitrogen fixation

Biochemistry, 1994
Biological nitrogen fixation is catalyzed by the nitrogenase enzyme system which consists of two metalloproteins, the iron (Fe-) protein and the molybdenum-iron (MoFe-) protein. Together, these proteins mediate the ATP-dependent reduction of dinitrogen to ammonia.
Kim, Jongsun, Rees, Douglas C.
openaire   +3 more sources

Biological Fixation of Nitrogen

Nature, 1938
THE oxime which is formed in the root nodules during the nitrogen fixation of legume bacteria1 has at last been isolated and characterized. The oxime precipitates according to Foreman's method, which fact already indicates it to be the oxime of a dicarbonic acid. Extracting the oxime with ether, we succeeded in preparing the copper salt from it.
ARTTURI I. VIRTANEN, T. LAINE
openaire   +1 more source

Hydrazine and biological nitrogen fixation

Biochimica et Biophysica Acta, 1957
Abstract The disappearance of hydrazine from washed suspensions of Azotobacter vinelandii was stimulated by the addition of potassium cyanide and acetaldehyde to the reaction mixture and was inhibited by the addition of ammonium sulfate. Most of the hydrazine which disappeared in this reaction could be recovered by acid hydrolysis of the organic ...
openaire   +2 more sources

Biological nitrogen fixation

1997
Biological nitrogen fixation (BNF), the microbial conversion of atmospheric N to a plant-useable form, helps to replenish the soil N lost by plant removal, ammonia volatilization, denitrification and leaching. Microorganisms capable of fixing atmospheric nitrogen are widely distributed on the surface of the earth, and various BNF systems composed of ...
openaire   +1 more source

Home - About - Disclaimer - Privacy