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Denitrifying Bacteria

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denitrifying bacteria: see nitrogen cycle nitrogen cycle, the continuous flow of nitrogen through the biosphere by the processes of nitrogen fixation, ammonification (decay), nitrification, and denitrification.
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denitrifying bacteria

Soil microorganisms whose action results in the conversion of nitrates in soil to free atmospheric nitrogen, thus exhausting soil fertility and reducing agricultural productivity. Without denitrification, earth's nitrogen supply would eventually accumulate in the oceans, since nitrates are highly soluble and are continuously leached from the soil into nearby bodies of water. See also nitrifying bacteria.


denitrifying bacteria [dē′nī·trə‚fī·iŋ bak′tir·ē·ə]
(microbiology)
Bacteria that reduce nitrates to nitrites or nitrogen gas; most are found in soil.

Denitrifying Bacteria 

bacteria that reduce nitrates to molecular nitrogen. Denitrifying bacteria include representatives of Pseudomonas, Achromobacter, Bacillus, and Micrococcus. All denitrifying bacteria are aerobes, and they can oxidize organic matter by means of atmospheric oxygen. However, when anaerobic conditions prevail, they use the oxygen of nitrates as an electron acceptor (“respiration by means of nitrates”). Denitrifying bacteria are grown on culture media with nitrates and an indicator that changes color when the nitrates are reduced. The bacteria are widespread in soil and in the water and soil of bodies of water.



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A few Koi carp pond terms you should familiarize yourself with, just to get you started on some basics of what goes into pond maintenance are; mechanical filtration and why sand filters are bad, biological filtration, the Nitrogen Cycle, nitrifying bacteria - what they are and what they do, denitrifying bacteria - what they are and what they do, heterotrophic and autotrophic bacteria, organic and inorganic waste products - what they are and what happens to them.
Conventional technologies, such as activated sludge, rely on bacteria with fast-growth life strategies in which nitrifying and denitrifying bacteria grow suspended in the water column.
Not only had the hydrocarbon contamination decreased, but there was a change in the microbial community composition, with more denitrifying bacteria present.
 
 
 
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