Results 41 to 50 of about 27,406 (282)
A nitrogenase-like enzyme system catalyzes methionine, ethylene, and methane biogenesis
Soil sulfur metabolism surprise Soil bacteria have a range of metabolic pathways that contribute to acquiring and recycling nutrients and carbon. Curiously, some of these organisms give off ethylene gas when starved for sulfur under anaerobic conditions.
J. North+12 more
semanticscholar +1 more source
Biological nitrogen fixation (BNF) is the reduction of N2 into NH3 in a group of prokaryotes by an extremely O2-sensitive protein complex called nitrogenase. Transfer of the BNF pathway directly into plants, rather than by association with microorganisms,
Lucía Payá-Tormo+11 more
doaj +1 more source
Structural Characterization of Two CO Molecules Bound to the Nitrogenase Active Site
As an approach towards unraveling the nitrogenase mechanism, we have studied the binding of CO to the active‐site FeMo‐cofactor. CO is not only an inhibitor of nitrogenase, but it is also a substrate, undergoing reduction to hydrocarbons (Fischer–Tropsch‐
T. M. Buscagan+4 more
semanticscholar +1 more source
Bradyrhizobium sp. strain DOA9 contains two copies of the nifDK genes, nifDKc, located on the chromosome, and nifDKp, located on a symbiotic megaplasmid.
Jenjira Wongdee+8 more
doaj +1 more source
Characterization of an M-Cluster-Substituted Nitrogenase VFe Protein
The Mo- and V-nitrogenases are two homologous members of the nitrogenase family that are distinguished mainly by the presence of different heterometals (Mo or V) at their respective cofactor sites (M- or V-cluster).
Johannes G. Rebelein+4 more
doaj +1 more source
Fast and reliable industrial production of ammonia (NH3) is fundamentally sustaining modern society. Since the early 20th Century, NH3 has been synthesized via the Haber–Bosch process, running at conditions of around 350–500°C and 100–200 times ...
Rebeca González-Cabaleiro+2 more
doaj +1 more source
Abstrak Penambatan nitrogen oleh bakteri rhizosfer dapat dimanfaatkan untuk menyiasati dampak salinitas pada tanah sawah pesisir. Kemampuan tersebut disebabkan oleh aktivitas nitrogenase yang disandikan gen nifH pada komponen II.
Dwi Ningsih Susilowati, Mamik Setyowati
doaj +1 more source
Water changes are predicted to regulate physiological activities of bryophytes characterized by poikilohydric gametophytes. In montane forest ecosystems, nitrogen(N)–fixing bryophyte–cyanobacteria associations are main N resources.
Xiaoyang Fan, Guodi Yuan, Wenyao Liu
doaj
The Proteogenome of Symbiotic Frankia alni in Alnus glutinosa Nodules
Omics are the most promising approaches to investigate microbes for which no genetic tools exist such as the nitrogen-fixing symbiotic Frankia. A proteogenomic analysis of symbiotic Frankia alni was done by comparing those proteins more and less abundant
Petar Pujic+6 more
doaj +1 more source
Feedback inhibition of nitrogenase [PDF]
No inhibition of nitrogenase activity by physiological levels of NH4+ or carbamyl phosphate was observed in extracts of Azotobacter vinelandii. All of the 15N2 reduced by cultures which received no NH4+ was found in the cells. By contrast, more than 95% of the 15N2 reduced by cultures which had been given NH4+ was found in the medium.
Winston J. Brill+2 more
openaire +3 more sources