The assimilation of atmospheric nitrogen by certain prokaryotes into nitrogenous compounds that can be directly used by plants.
the conversion of gaseous nitrogen into more complex molecules that can be used by plants and other organisms; often carried out by micro-organisms in the soil or closely associated with some plant species (e.g. the legumes or pea relatives)
Change of atmospheric nitrogen into nitrogen compounds by certain microorganisms, usually living in close relationship with plant roots. Nitrogen compounds can be used by plants as food. See rhizobia.
the process of transforming N2 to nitrogen-containing compounds useful to plants
The biological conversion of atmospheric nitrogen to organic combinations or to forms readily used by organisms.
The conversion of atmospheric nitrogen to nitrogen compounds that can be utilised by plants, accomplished by nodule-forming bacteria on legume roots or by soil micro-organisms.
The capture and conversion of atmospheric nitrogen gas into nitrogen compounds, stored in the soil, that can be used by plants.
The conversion of gaseous nitrogen (N2) into more complex molecules. The process is used industrially to produce nitrogen fertilizers. Biological nitrogen fixation is accomplished by both free-living and symbiotic microorganisms (prokaryotes). The process is more properly called 'dinitrogen fixation'.
Conversion of atmospheric nitrogen gas into forms useful to plants by lightning, bacteria, and cyanobacteria; part of the nitrogen cycle.
The process of chemically converting nitrogen gas (N2) from the air into compounds such as nitrates (NO3-) or ammonia (NH3) that can be used to plants in building amino acids and other nitrogen-containing organic molecules.
All plants need nitrogen to surviv...
( Ped.). The conversion of elemental nitrogen to organic combinations, or to forms readily utilizable in biological processes, by nitrogen-fixing micro-organism. When brought about by bacteria in the root nodules of leguminous plants it is spoken of as symbiotic; if by free-living micro-organisms acting independently, it is referred to as non-symbiotic-fixation. ( SSSA).
Biochemical process performed by specific bacteria that reduces atmospheric nitrogen (N) to ammonia and hence into various nitrogen-containing metabolites.
a process that causes free nitrogen to combine chemically with other elements to form reactive compounds
The conversion of atmospheric nitrogen (N2) into oxidized forms that can be assimilated by plants. Biological nitrogen fixation is catalysed by the enzyme nitrogenase, which is found only in prokaryotes. Certain blue-green algae and some genera of bacteria (e.g., Rhizobium spp.; Azotobacter spp.) are capable of biochemically fixing nitrogen. Such bacteria are very important symbionts for plants growing in nitrogen-poor soils.
Atmospheric nitrogen (N2), although present in large quantities, cannot be used by plants. Chemically, nitrogen in this form is linked together with a triple bond, which is very stable; plants cannot metabolize it. Bacteria in the soil, however, can. Through a process called nitrogen fixation, the bacteria combine the nitrogen with hydrogen to create nitrates (NH3). The nitrogen in nitrate is in a form plants (and other organisms) can use. See also legumes.
Conversion of nitrogen gas to ammonia, which makes nitrogen available to living things. Carried out by certain prokaryotes, some of them free-living and others living within plant roots.
The conversion of atmospheric nitrogen gas to oxidized forms that can be assimilated by plants, particularly by blue-green algae and some genera of bacteria (e.g. Rhizobium spp.; Azotobacter spp.). An important source of nitrogen in unfertilized soils.
Conversion of gaseous nitrogen (in the air that we breathe) into a form which can be taken up by plants, carried out by only certain bacteria and cyanobacteria
Conversion of atmospheric nitrogen gas into forms useful to plants and other organisms by bacteria and blue-green algae - part of the nitrogen cycle.
A process carried out by bacteria and some plants. Nitrogen gas (N2) from the atmosphere is combined with oxygen (O), to give nitrate (NO3), which can be used as a nutrient to aid plant growth.
The conversion of atmospheric (or dissolved) nitrogen gas into nitrate by microorganisms.
the process of producing nitrogen in the roots of legumes by certain bacteria.
the assimilation of atmospheric nitrogen by soil bacteria and its release for plant use on the death of the bacteria
Biochemical conversion of atmospheric nitrogen into nitrogen compounds such as nitrate and nitrite. This process is naturally carried out by certain soil-inhabiting bacteria and certain blue–green algae.
NI-tro-gen fix-A-shun A microbial process that reduces atmospheric nitrogen gas to ammonia, which other organisms can use. 452
All plants need nitrogen to survive. Despite the fact that over 75% of our atmosphere is composed of nitrogen, it is in an elemental form that plants cannot use. Only certain kinds of bacteria associated with certain plants can "fix" the nitrogen into a usable form, which involves breaking the original molecule and adding hydrogen. These bacteria do this for themselves of course, but a lot of the nitrogen leaks out into the surrounding environment in different ways, where it is quickly snatched up by plants. The growth in many forest systems is limited by nitrogen levels. Manure is high in fixed nitrogen, and thus, is useful as fertilizer.
The process of producing nitrogen compounds by combining nitrogen from the air with other substances. The only organisms that can use nitrogen gas to make organic molecules are a few kinds of bacteria. Most nitrogen-fixing bacteria live in the soil or water, but some species live in nodules on the roots of legumes such as lucerne, peas, beans and clovers.
A process whereby nitrogen fixing bacteria living in mutualistic associations with plants convert atmospheric nitrogen to nitrogen compounds that plants can utilize directly.
The biological or chemical process by which elemental nitrogen, from the air, is converted to organic or available nitrogen.
Reduction of molecular nitrogen to ammonia by some bacteria and cyanobacteria, often followed by nitrification, the oxidation of ammonia to nitrites and nitrates by other bacteria.
The conversion of gaseous nitrogen to nitrate by specialized bacteria.
The process of converting nitrogen gas, N2, into a form that organisms can use, such as ammonia, NH3, or nitrate, NO3Ã.
The process in which bacteria convert biologically unusable nitrogen gas (N2) into biologically usable ammonia (NH3) and nitrates (NO3-).
The conversion of molecular nitrogen (N2) into nitrogen compounds suitable for plant uptake. This process is carried out by certain micro-organisms, such as Rhizobium bacteria in the nodules on the roots of legumes. This is of immediate benefit to the host plant.
The transformation of atmospheric nitrogen into nitrogen compounds that can be used by growing plants.
A process in which nitrogen-fixing bacteria and fungi, working in isolation (free-living) or in association with plants, convert atmospheric nitrogen into nitrogen compounds for use by the same or other plants.
This process occurs in some free-living microorganisms, e.g., blue-green algae and in bacterial-induced nodules of legumes. The conversion of elemental nitrogen into organic nitrogen or to forms readily utilized in biological processes.
Conversion of atmospheric nitrogen to plant compounds by micro organisms by micro organisms
Nitrogen-fixing bacteria The transformation of free nitrogen from the air into nitrogenous compounds by various bacteria in the soil. Certain bacteria (Rhizobium spp) living in the root nodules of legumes are able to 'fix' nitrogen, which is then available to the plant.
an important biochemical pathway in which atmospheric nitrogen (N) is converted to inorganic nitrogen (NO-, NH, or NH+) which can then be used by plants. The few organisms which are able to carry out this process are: cyanobacteria (blue-green algae), some symbiotic bacteria such as Rhizobium and Frankia, and humans.
Reduction of dinitrogen gas (N2) to ammonia (NH3) by the enzyme nitrogenase.
The reduction of gaseous nitrogen to ammonia or other inorganic or organic compounds by microorganisms or lightening.
The transformation of gaseous nitrogen into nitrogenous compounds (e.g., ammonia), usually by way of nitrogen-fixing soil and/or aquatic bacteria.
The incorporation of gaseous molecular nitrogen, N2, into nitrogenous compounds. Abiotic fixation of N2 occurs via lightning and photochemical conversion in the atmosphere. Biotic fixation of N2 is done by specialized bacteria that construct the hemoglobin-like enzymes necessary to cleave the strong triple bond of molecular nitrogen.
The conversion of gaseous nitrogen into a form usable by plants. Ususally by bacteria.
The assimilation of atmospheric nitrogen into ammonia, most commonly through metabolic processes of soil microorganisms. Other agents of nitrogen fixation include lightning,forest fires, and the industrial process used to manufacture synthetic fertilizers.
n: The process of chemically converting nitrogen gas (N ) from the air into compounds, such as nitrates (NO ), nitrites (NO ), or ammonia (NH ), that can be used by plants in building amino acids and other nitrogen-containing organic molecules.
Nitrogen fixation is the process by which nitrogen is taken from its relatively inert molecular form (N2) in the atmosphere and converted into nitrogen compounds (such as, notably, ammonia, nitrate and nitrogen dioxide) useful for other chemical processes.