Everything about Nitrosomonas Europaea totally explained
Nitrosomonas europea is a
Gram-negative obligate
chemolithoautotroph that can derive all its energy and reductant for growth from the oxidation of
ammonia to nitrite and lives in several places such as
soil,
sewage, freshwater, the walls of buildings and on the surface of monuments especially in polluted areas where the air contains high levels of
nitrogen compounds.
Because of the large amounts of ammonia this
bacterium needs to consume for energy to divide, cell division can take up to several days. This is perhaps one reason why this microbe isn't studied very much. This microbe has been shown to be an ammonia-oxidizing soil bacterium and it's known to have a range of substrates that might be useful in
bioremediation. Several studies are still being done with the bacterium, but will take some time due to the slow cell division rate and the high amounts of nitrogen needed to live.
While not using
photosynthesis for energy isn't unique, "burning" ammonia with oxygen is. Both are characteristics of
Nitrosomonas europaea. This microbe prefers an optimum pH of 6.0-9.0, fairly neutral conditions, has an
aerobic metabolism and prefers a temperature range of 20-30 degrees Celsius. Most are motile with
flagella located in the polar regions although some species are nonmotile.
The reaction catalysed by these bacteria is the first step in the oxidation of ammonia to nitrate.
Nitrosomonas europaea are also important in the treatment of industrial and sewage waste in the first step of oxidizing ammonia to nitrate. Evidence suggests that ammonia-oxidizing bacteria contribute significantly to the global production of
nitrous oxide (produced by the reduction of nitrite).
Nitrosomonas europaea is also capable of degrading a variety of
halogenated organic compounds, including
trichloroethylene,
benzene, and
vinyl chloride. The ability of nitrifying organisms to degrade some pollutants may make these organisms attractive for controlled bioremediation in nitrifying soils and waters.
Nitrosomonas europaea is also accountable for nitric acid production which can cause the dissolvence of some stone and other construction materials found on statues and in buildings.
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