Nitrosomonas mobilis

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Nitrosomonas mobilis
Systematics
Department : Proteobacteria
Class : Betaproteobacteria
Order : Nitrosomonadales
Family : Nitrosomonadaceae
Genre : Nitrosomonas
Type : Nitrosomonas mobilis
Scientific name
Nitrosomonas mobilis
( Koops et al. 1976) Koops & Pommerening-Röser 2005

Nitrosomonas mobilis is an unrecognized species of bacteria in the genus Nitrosomonas . It is a nitrifying bacterial species which metabolizes ammonia (NH 3 ) to nitrite (NO 2 - ) and thereby gains energy.

features

The cells are mostly spherical, measuring 1.5 X 1.7 micrometers. Occasionally they also appear rod-shaped with 1.5–1.7 X 1.7–2.5 micrometers.

Like all bacteria of the Proteobacteria group, the species is gram-negative . Nitrosomonas mobilis is aerobic , the bacterium needs oxygen. In contrast to some species of the genus, the species can not use urea as a source of ammonium. Nitrosomonas mobilis , like all members of the Nitrosomonadaceae family , is chemolithoautotrophic , i. H. Inorganic electron donors (ammonia) are used to generate energy, the species does not depend on organic energy and carbon sources.

Nitrosomonas mobilis was found in wastewater treatment plants and in the North Sea .

metabolism

Like all Nitrosomonadaceae, Nitrosomonas mobilis is one of the nitrifiers. The metabolism is based on nitrification , ammonia (NH 3 ) is oxidized to nitrite (NO 2 - ).

The oxidation of ammonia brings electrons into an electron transport chain . A proton motor force is generated, which ultimately leads to the formation of ATP . For carbon fixation , the nitrifying bacteria use the Calvin cycle , which is also used during photosynthesis in plants.

Nitrification is an important part of the earth's nitrogen cycle .

Systematics

Nitrosomonas mobilis was discovered in 1976 by HP Koops et al. described, but is not a valid published taxon . The species is not listed in the List of Prokaryotic names with Standing in Nomenclature (LPSN) in the genus Nitrosomonas . The National Center for Biotechnology Information (NCBI) database has no entry for Nitrosomonas mobilis .

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literature

  • Michael T. Madigan, John M. Martinko, Jack Parker: Brock - Microbiology . 11th edition. Pearson Studium, Munich 2006, ISBN 3-8274-0566-1
  • George M. Garrity: Bergey's manual of systematic bacteriology . 2nd Edition. Springer, New York 2005, Vol. 2: The Proteobacteria Part C: The Alpha-, Beta-, Delta-, and Epsilonproteabacteria , ISBN 0-387-24145-0

Individual evidence

  1. ↑ a b Jean Euzéby, Aidan C. Parte: Some prokaryotic names without standing in nomenclature. In: List of Prokaryotic names with Standing in Nomenclature ( LPSN ). Retrieved August 6, 2014 .
  2. ^ Jean Euzéby, Aidan C. Parte: Genus Nitrosomonas. In: List of Prokaryotic names with Standing in Nomenclature ( LPSN ). Retrieved August 6, 2014 .
  3. ↑ Taxonomy Browser Nitrosomonas. In: National Center for Biotechnology Information (NCBI) website . Retrieved August 6, 2014 .

Web links

  • A little glimpse into the world of bacteria - AquaCare. Sellner, BR 1997: A little glimpse into the world of bacteria - biological metabolic processes in the aquarium using the example of nitrogen oxidation (nitrification).