Name: Nitrososphaera viennensis Stieglmeier et al. 2014

Category: Species

Proposed as: sp. nov.

Etymology: vi.en.nen’sis. N.L. fem. adj. viennensis, from Vienna, where the type strain was isolated and characterized

Gender: feminine

Type strain: DSM 26422; EN76; JCM 19564; JMC 19564

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: FR773157 Analyse FASTA

Valid publication: Stieglmeier M, Klingl A, Alves RJ, Rittmann SK, Melcher M, Leisch N, Schleper C. Nitrososphaera viennensis gen. nov., sp. nov., an aerobic and mesophilic, ammonia-oxidizing archaeon from soil and a member of the archaeal phylum Thaumarchaeota. Int J Syst Evol Microbiol 2014; 64:2738-2752.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 64, part 8 of the IJSEM. Int J Syst Evol Microbiol 2014; 64:3607-3609.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    "Candidatus Nitrososphaera viennensis" Tourna et al. 2011	homotypic synonym, not validly published

• Notes:
  • 🥇 Nomenclatural type of the genus Nitrososphaera Stieglmeier et al. 2014. Publication: Stieglmeier M, Klingl A, Alves RJ, Rittmann SK, Melcher M, Leisch N, Schleper C. Nitrososphaera viennensis gen. nov., sp. nov., an aerobic and mesophilic, ammonia-oxidizing archaeon from soil and a member of the archaeal phylum Thaumarchaeota. Int J Syst Evol Microbiol 2014; 64:2738-2752.
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🎓 Name mentioned 35 times in PubMed until 2024-03-27.

Parent taxon: Nitrososphaera Stieglmeier et al. 2014

Assigned by: Stieglmeier M, Klingl A, Alves RJ, Rittmann SK, Melcher M, Leisch N, Schleper C. Nitrososphaera viennensis gen. nov., sp. nov., an aerobic and mesophilic, ammonia-oxidizing archaeon from soil and a member of the archaeal phylum Thaumarchaeota. Int J Syst Evol Microbiol 2014; 64:2738-2752.

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Record number: 792004