Biology:Nitrospira inopinata

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Nitrospira inopinata is a bacterium from the phylum Nitrospirae. This phylum contains nitrite-oxidizing bacteria playing role in nitrification. However N. inopinata was shown to perform complete ammonia oxidation to nitrate thus being the first comammox bacterium to be discovered.[1][2]

Nitrospira inopinata
Scientific classification
N. inopinata
Binomial name
Nitrospira inopinata
Daims et al. 2015

N. inopinata was cultivated in enrichment culture. Initial inoculum was obtained in 2011 from microbial biofilm growing on metal surface of the pipe covered by hot water (56 °C, pH 7.5), which was raised from 1 200m deep oil exploration well. The well was located in Aushiger, North Caucasus, Russia.[1] The growth in pure culture was achieved in 2017.[3]

Genome of N. inopinata was released in 2015 represented by 3.3 Mbp, with 3 116 genes and 59.2% GC content. NCBI accession number is LN885086.


  1. 1.0 1.1 Daims, Holger; Lebedeva, Elena V.; Pjevac, Petra; Han, Ping; Herbold, Craig; Albertsen, Mads; Jehmlich, Nico; Palatinszky, Marton et al. (December 2015). "Complete nitrification by Nitrospira bacteria" (in en). Nature 528 (7583): 504–509. doi:10.1038/nature16461. ISSN 1476-4687. PMID 26610024. 
  2. van Kessel, Maartje A. H. J.; Speth, Daan R.; Albertsen, Mads; Nielsen, Per H.; Op den Camp, Huub J. M.; Kartal, Boran; Jetten, Mike S. M.; Lücker, Sebastian (December 2015). "Complete nitrification by a single microorganism" (in en). Nature 528 (7583): 555–559. doi:10.1038/nature16459. ISSN 1476-4687. PMID 26610025. 
  3. Kits, K. Dimitri; Sedlacek, Christopher J.; Lebedeva, Elena V.; Han, Ping; Bulaev, Alexandr; Pjevac, Petra; Daebeler, Anne; Romano, Stefano et al. (September 2017). "Kinetic analysis of a complete nitrifier reveals an oligotrophic lifestyle" (in en). Nature 549 (7671): 269–272. doi:10.1038/nature23679. ISSN 1476-4687. PMID 28847001. 

See also Wikidata entry Q105320670.