nitrous bacterium

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nitrous bacterium

A nitrous bacterium converts ammonia into nitrites in the soil.

Definition
  1. Noun:
    • A type of nitrifying bacterium: A nitrous bacterium is any bacterium belonging to the genus Nitrosomonas or related genera within the nitrifying bacteria. Its primary ecological function is to oxidize ammonia (NH₃) into nitrites (NO₂⁻), which is the first step in the nitrification process in the nitrogen cycle.
Usage Examples
  • Noun:
    • The activity of nitrous bacterium is essential for converting toxic ammonia in aquarium water.
    • Soil health depends on the presence of nitrous bacterium to begin the nitrification process.
    • Researchers studied the population dynamics of nitrous bacterium in the wastewater treatment plant.
Advanced Usage
  • Scientific Context: The term is primarily used in microbiology, ecology, agronomy, and environmental science. It is often discussed in relation to the nitrogen cycle, soil chemistry, and water treatment processes.
    • The nitrification rate in this soil sample is limited by the low concentration of nitrous bacterium.
Variants and Related Words
  • Nitrifying bacteria (n): The broader group of bacteria that carry out nitrification, including both ammonia-oxidizing bacteria (nitrous bacteria) and nitrite-oxidizing bacteria.
  • Ammonia-oxidizing bacteria (AOB) (n): A more modern or specific technical synonym for nitrous bacterium.
  • Nitrosomonas (n): The most common genus of nitrous bacterium.
  • Nitrite (n): The chemical compound (NO₂⁻) produced by nitrous bacterium.
Synonyms
  • Ammonia-oxidizing bacterium
  • Nitrosomonad (specific to certain genera)
Notes on Meaning
  • The term "nitrous bacterium" is specific and technical. It is not to be confused with "nitrifying bacterium," which is a broader category, or with "denitrifying bacteria," which perform the opposite function (converting nitrates to nitrogen gas).
  • The "nitrous" in the name refers to the production of nitrites, not to nitrous oxide (N₂O), which is a different compound produced by other microbial processes.
nitrous bacterium

A nitrous bacterium converts ammonia into nitrites in the soil.

Noun
  1. any of the nitrobacteria that oxidize ammonia into nitrites

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