1.(Biology) the conversion of atmospheric nitrogen into nitrogen compounds by certain bacteria, such asRhizobiumin the root nodules of legumes 2.(Chemistry) a process, such as the Haber process, in which atmospheric nitrogen is converted into a nitrogen compound, used esp for the manufacture of...
Nitrogen-fixing cyanobacteria of genus Nostoc, Calothrix, Oscillatoria, and Anabaena can produce hydrogen along with other non-nitrogen-fixing bacteria of genus Synechocystis, Gloebactor, and Synechococcus (Masukawa et al., 2017). Hypoxic fixation of nitrogen and oxygenic photosynthesis reaction should...
Nitrogen fixation takes place in a wide variety of bacteria, the best known of which is rhizobium which is found in nodules on the roots of leguminous plants such as peas, beans, soya and clover. The essential constituents of this and all other nitrogen-fixing bacteria are: (i) adenosine ...
Nitrogen-fixing bacteria, microorganisms capable of transforming atmospheric nitrogen into fixed nitrogen that is usable by plants.
The symbioticnitrogen-fixing bacteriainvade theroothairs of hostplants, where they multiply and stimulate the formation of root nodules, enlargements ofplantcells andbacteriainintimateassociation. Within the nodules, the bacteria convert free nitrogen to ammonia, which the host plant utilizes for its de...
Many heterotrophic bacteria live in the soil and fix significant levels of nitrogen without the direct interaction with other organisms. Examples of this type of nitrogen-fixing bacteria include species ofAzotobacter,Bacillus,Clostridium, andKlebsiella. As previously noted, these organisms must find their...
we study how different crop combinations influence the interaction between peanut plants and their rhizosphere microbiota via metabolite deposition and functional responses of free-living and symbiotic nitrogen-fixing bacteria. Based on a long-term (8 year) diversified cropping field experiment, we find ...
Rhizobia are soil bacteria that establish symbiotic relationships with legumes and fix nitrogen in root nodules. We recently reported that several nitrogen-fixing rhizobial strains, belonging to Rhizobium phaseoli, R. trifolii, R. grahamii and Sinorhizobium americanum, were able to colonize Phaseolus vu...
Nitrogen is an essential element required for the synthesis of biomolecules like nucleic acids and proteins. Though there is an abundance of dinitrogen (N2) gas in the atmosphere, it can be utilized only by some archaea and nitrogen-fixing bacteria. The amazing diversity of nitrogen-transforming...
L., and D. E. Fleischman. 1973. Nitrogen fixation in photosynthetic bacteria. Photophysiology 8:157-183.Keister, D. L., Fleischman, D. E.: Nitrogen fixation in photosynthetic bacteria. In: Photophysiology, Vol. 8 (A. Giese, ed.), pp. 157–183. New York-London: Academic Press 1973...