nitrification

(noun)

The biological oxidation of ammonia with oxygen into nitrite followed by the oxidation of these nitrites into nitrates.

Related Terms

  • chemolithotrophy
  • ammonification
  • de-nitrification

(noun)

The biological oxidation of ammonia or ammonium with oxygen into nitrite followed by the oxidation of these nitrites into nitrates.

Related Terms

  • chemolithotrophy
  • ammonification
  • de-nitrification

Examples of nitrification in the following topics:

  • Nitrification

    • Nitrification is an important step in the nitrogen cycle in soil.
    • Nitrification is an aerobic process performed by small groups of autotrophic bacteria and archaea.
    • The transformation of ammonia to nitrite is usually the rate limiting step of nitrification.
    • Nitrification also plays an important role in the removal of nitrogen from municipal wastewater.
    • The conventional removal is nitrification, followed by denitrification.
  • The Nitrogen Cycle

    • Nitrificaton: Nitrification is the conversion of ammonia (NH3) to nitrate (NO3-).
    • Nitrification is performed mainly by the genus of bacteria, Nitrobacter.
    • Nitrification can also work on ammonium.
    • It can either be cycled back into a plant usable form through nitrification or returned to the atmosphere through de-nitrification.
    • De-Nitrification: Nitrogen in its nitrate form (NO3-) is converted back into atmospheric nitrogen gas (N2) by bacterial species such as Pseudomonas and Clostridium, usually in anaerobic conditions.
  • Psychrophilic Crenarchaeota

    • Nitrification , as stated above, is formally a two-step process; in the first step ammonia is oxidized to nitrite, and in the second step nitrite is oxidized to nitrate.
    • Crenarchaeote are abundant in the ocean and some species have a 200 times greater affinity for ammonia than AOB, leading researchers to challenge the previous belief that AOB are primarily responsible for nitrification in the ocean.
    • Nitrification is the biological oxidation of ammonia with oxygen into nitrite followed by the oxidation of these nitrites into nitrates.
    • Degradation of ammonia to nitrite is usually the rate limiting step of nitrification.
    • Nitrification is an important step in the nitrogen cycle in soil.
  • Nitrospirae and Deferribacter

    • By a process known as nitrification, bacteria convert these waste products to less toxic forms.
  • Habitats and Energy Metabolism of Crenarchaeota

    • Some marine Crenarchaeota are capable of nitrification, suggesting these organisms may affect the oceanic nitrogen cycle, although these oceanic Crenarchaeota may also use other sources of energy.
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