Name: Oerskovia xanthineolytica Lechevalier 1972 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: xan.thi.ne.o.ly’ti.ca. N.L. neut. n. xanthinum, xanthine; N.L. fem. adj. lytica, loosening, dissolving; from Gr. fem. adj. lytikê, able to loose, able to dissolve; N.L. fem. adj. xanthineolytica, xanthine-dissolving

Pronunciation, gender: ksan-t^hi-ne-o-LY-ti-ka, feminine

Type strain: ATCC 27402; IFO 16148; JCM 3164; LMG 16121; NBRC 16148; NRRL B-16088

Conduct genome-based taxonomy at

16S rRNA gene: AB023355 Analyse FASTA

Effective publication: Lechevalier MP. Description of a new species, Oerskovia xanthinolytica, and emendation of Oerskovia Prauser et al. International Journal of Systematic Bacteriology 1972; 22:260-264.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

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

Correct name: Cellulosimicrobium cellulans (Metcalfe and Brown 1957) Schumann et al. 2001

Risk group: 1

• Synonyms:

  • Name	Kind
    Brevibacterium lyticum Takayama et al. 1960 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Brevibacterium fermentans Chatelain and Second 1966 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Cellulomonas cellulans (Metcalfe and Brown 1957) Stackebrandt and Keddie 1988	heterotypic synonym, validly published under the ICNP
    "Cellulomonas cartalyticum" Carta 1973	heterotypic synonym, not validly published
    Nocardia cellulans Metcalfe and Brown 1957 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Cellulosimicrobium cellulans (Metcalfe and Brown 1957) Schumann et al. 2001	heterotypic synonym, validly published under the ICNP
    Cellulomonas cartae Stackebrandt and Kandler 1980	heterotypic synonym, validly published under the ICNP

• Emendations:
  • Nouioui et al. 2018 Nouioui I, Carro L, Garcia-Lopez M, Meier-Kolthoff JP, Woyke T, Kyrpides NC, Pukall R, Klenk HP, Goodfellow M, Goker M. Genome-Based Taxonomic Classification of the Phylum Actinobacteria. Front Microbiol 2018; 9:2007. 🇩🇪 Oren A, Garrity GM. List of changes in taxonomic opinion no. 29. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2019; 69:13-32.

• Notes:
  • ⏲ According to Stackebrandt et al. (1982), this species is a later heterotypic synonym of Nocardia cellulans Metcalfe and Brown 1957 (Approved Lists 1980). Publication: Stackebrandt E, Seiler H, Schleifer KH. Union of the genera Cellulomonas Bergey et al. and Oerskovia Prauser et al. in a redefined genus Cellulomonas. Zentralbl. Bakteriol. Parasitenkd. Infektionskr. Hyg. Abt. 1 Orig. 1982; C3:401-409.
  • ⏲ According to Stackebrandt et al. (1982), this species is a later heterotypic synonym of Cellulomonas cellulans (Metcalfe and Brown 1957) Stackebrandt and Keddie 1988. Publication: Stackebrandt E, Seiler H, Schleifer KH. Union of the genera Cellulomonas Bergey et al. and Oerskovia Prauser et al. in a redefined genus Cellulomonas. Zentralbl. Bakteriol. Parasitenkd. Infektionskr. Hyg. Abt. 1 Orig. 1982; C3:401-409.
  • ⏲ According to Stackebrandt et al. (1982), this species is a later heterotypic synonym of Cellulosimicrobium cellulans (Metcalfe and Brown 1957) Schumann et al. 2001. Publication: Stackebrandt E, Seiler H, Schleifer KH. Union of the genera Cellulomonas Bergey et al. and Oerskovia Prauser et al. in a redefined genus Cellulomonas. Zentralbl. Bakteriol. Parasitenkd. Infektionskr. Hyg. Abt. 1 Orig. 1982; C3:401-409.
  • ❗ Oerskovia xanthineolytica 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 Oerskovia.
  • 🧬 The phylogenomic assignment score of this taxon is -0.19581 (N = 9).
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 2 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1, note = "PIIC". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1, note = "ht+". — 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 45 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.
  • 🧍 The proposal to combine all five species under the name Cellulomonas cartae is not in accordance with the Bacteriological Code because the specific epithet cellulans in Nocardia cellulans Metcalf and Brown 1957 has priority over the specific epithet cartae in Cellulomonas cartae Stackebrandt and Kandler 1980 [Rules 38 and 42]. Publication: Stackebrandt E, Keddie RM. Genus Cellulomonas Bergey et al. 1923, 154, emend. mut. char. Clark 1952, 50AL. In: Sneath PHA, Mair NS, Sharpe ME, Holt JG (eds), Bergey's Manual of Systematic Bacteriology, first edition, vol. 2, The Williams & Wilkins Co., Baltimore, 1986, p. 1325-1329. 🇩🇪
  • 🧍 Therefore, the name of the taxon under which they are united is Cellulomonas cellulans (Metcalf and Brown 1957) Stackebrandt and Keddie 1988, comb. nov. [2, 3]. Publication: Anonymous. Validation list no. 25. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1988; 38:220-222.

Parent taxon: Oerskovia Prauser et al. 1970 (Approved Lists 1980)

Assigned by: Lechevalier MP. Description of a new species, Oerskovia xanthinolytica, and emendation of Oerskovia Prauser et al. International Journal of Systematic Bacteriology 1972; 22:260-264.

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Record number: 778974