Dictionary > Nitrification

Nitrification

Definition
noun
A process wherein a nitro group is added to an organic compound
Supplement
Nitrification is a process where a nitro group is added to an organic compound or substituted for another group in an organic compound. It is the oxidation of ammonium compounds in dead organic material into nitrates and nitrites by soil bacteria (making nitrogen available to plants). It also pertains to the conversion of nitrogen from inorganic to organic by nitrate bacteria, which effectively recycles the substance so that it can be used again by plants via root uptake.
Natural nitrification is a biological occurrence performed by nitrifying bacteria. Nitrifying bacteria are microbes that are capable of converting ammonium into nitrate especially through the process of nitrification. Examples of nitrifying bacteria include species of the genera Nitrosomonas (i.e. Gram-negative short to long rods), Nitrosococcus (i.e. large motile cocci), Nitrobacter (i.e. short rods with membrane system arranged as a polar cap), and Nitrococcus (i.e. large cocci with a membrane system randomly arranged in tubes).
Nitrification occurs as follows:

  • 2 NH4+ + 3 O2 → 2 NO2− + 2 H2O + 4 H+
  • 2 NO2− + O2 → 2 NO3
  • NH3 + O2→ NO2− + 3H+ + 2e−
  • NO2− + H2O → NO3− + 2H+ + 2e−

See also:

  • nitrifying bacterium


  • You will also like...

    Birth Control and Contraception
    Birth Control and Contraception

    Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..

    Stem
    Stems

    Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..

    Principles of Hormonal Control Systems
    Principles of Hormonal Control Systems

    Hormones are essential in the regulation of the activity of the various biological systems of the human body. The ineffi..

    Homeostasis by water regulation
    Homeostasis of Organism Water Regulation

    Osmoregulation is the regulation of water concentrations in the bloodstream, effectively controlling the amount of water..

    Gene Pool and Speciation
    The Gene Pool and Speciation

    According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..

    Plant meristem
    Plant Meristems and Growth

    In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..