Name: Exiguobacterium sibiricum Rodrigues et al. 2006

Category: Species

Proposed as: sp. nov.

Etymology: si.bi’ri.cum. N.L. neut. adj. sibiricum, pertaining to Siberia (region in northwestern Asia, the name said to come from Sibir, ancient Tatar fortress at the confluence of the rivers Tobol and Irtysh)

Pronunciation (Latin), gender: … si-BI-ri-kum, neuter

Type strain: 255-15; DSM 17290; JCM 13490

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AY444839 Analyse FASTA

Effective publication: Rodrigues DF, Goris J, Vishnivetskaya T, Gilichinsky D, Thomashow MF, Tiedje JM. Characterization of Exiguobacterium isolates from the Siberian permafrost. Description of Exiguobacterium sibiricum sp. nov. Extremophiles 2006; 10:285-294. 🇺🇸

IJSEM list: Euzeby JP. Validation list no. 112. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2006; 56:2507-2508.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Exiguobacterium artemiae López-Cortés et al. 2006

Risk group: 1

• Synonyms:

  • Name	Kind
    Exiguobacterium artemiae López-Cortés et al. 2006	heterotypic synonym, validly published under the ICNP

• Notes:
  • ⏲ According to Wang et al. (2024), this species is a later heterotypic synonym of Exiguobacterium artemiae López-Cortés et al. 2006. Publication: Wang S, Dhulappa A, Quadri SR, Jin P, Wang K, Qiao H, Narsing Rao MP. Reclassification of Some Exiguobacterium Species Based on Genome Analysis. Curr Microbiol 2024; 81:186. 🇨🇳
  • ❗ Exiguobacterium sibiricum is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Exiguobacterium.
  • 🧬 The phylogenomic assignment score of this taxon is 0.08024 (N = 107).
  • 😷 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 62 times in PubMed until 2025-06-04.
  • 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus.
  • 🧍 The culture collection accession number JCM 13490 has been provided on request for validation. Publication: Euzeby JP. Validation list no. 112. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2006; 56:2507-2508.

Parent taxon: Exiguobacterium Collins et al. 1984

Assigned by: Rodrigues DF, Goris J, Vishnivetskaya T, Gilichinsky D, Thomashow MF, Tiedje JM. Characterization of Exiguobacterium isolates from the Siberian permafrost. Description of Exiguobacterium sibiricum sp. nov. Extremophiles 2006; 10:285-294. 🇺🇸

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Record number: 785684