Name: Cellulosimicrobium variabile Bakalidou et al. 2002

Category: Species

Proposed as: sp. nov.

Etymology: va.ri.a’bi.le. L. neut. adj. variabile, variable, because the cells form rods or cocci

Pronunciation, gender: wa-ri-A-bi-le, neuter

Type strain: ATCC BAA-303; DSM 10177; JCM 11754; KCTC 9985; MX5; NBRC 104115

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB489221 Analyse FASTA

Valid publication: Bakalidou A, Kampfer P, Berchtold M, Kuhnigk T, Wenzel M, Konig H. Cellulosimicrobium variabile sp. nov., a cellulolytic bacterium from the hindgut of the termite Mastotermes darwiniensis. Int J Syst Evol Microbiol 2002; 52:1185-1192.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 52, part 4 of the IJSEM. Int J Syst Evol Microbiol 2002; 52:1439-1440.

Nomenclatural status: validly published under the ICNP

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

Correct name: Isoptericola variabilis (Bakalidou et al. 2002) Stackebrandt et al. 2004

Risk group: 1

• Synonyms:

  • Name	Kind
    Isoptericola variabilis (Bakalidou et al. 2002) Stackebrandt et al. 2004	homotypic synonym, validly published under the ICNP
    "Cellulomonas variformis" Priya et al. 2012	homotypic synonym, not validly published

• Notes:
  • ❗ Cellulosimicrobium variabile 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 Cellulosimicrobium.
  • 😷 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 3 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 pathogenicity of other species in the genus.

Parent taxon: Cellulosimicrobium Schumann et al. 2001

Assigned by: Bakalidou A, Kampfer P, Berchtold M, Kuhnigk T, Wenzel M, Konig H. Cellulosimicrobium variabile sp. nov., a cellulolytic bacterium from the hindgut of the termite Mastotermes darwiniensis. Int J Syst Evol Microbiol 2002; 52:1185-1192.

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Record number: 774574