Name: Desulfomonas pigra Moore et al. 1976 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: pi’gra. L. adj. piger -gra -grum, lazy, indolent, sluggish, inactive; L. fem. adj. pigra, lazy (referring to the limited number of substrates utilized by the species)

Pronunciation, gender: PI-gra, feminine

Type strain: ATCC 29098; DSM 749

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF192152 Analyse FASTA

Effective publication: Moore WEC, Johnson JL, Holdeman LV. Emendation of Bacteriodaceae and Butyrivibrio and descriptions of Desulfomonas gen. nov. and ten new species in the genera Desulfomonas, Butyrivibrio, Eubacterium, Clostridium, and Ruminococcus. International Journal of Systematic Bacteriology 1976; 26:238-252.

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: Desulfovibrio piger (Moore et al. 1976) Loubinoux et al. 2002

Risk group: 1

• Synonyms:

  • Name	Kind
    Desulfovibrio piger (Moore et al. 1976) Loubinoux et al. 2002	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Desulfomonas Moore et al. 1976 (Approved Lists 1980). Publication: Moore WEC, Johnson JL, Holdeman LV. Emendation of Bacteriodaceae and Butyrivibrio and descriptions of Desulfomonas gen. nov. and ten new species in the genera Desulfomonas, Butyrivibrio, Eubacterium, Clostridium, and Ruminococcus. International Journal of Systematic Bacteriology 1976; 26:238-252.
  • ❗ Desulfomonas pigra 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 Desulfomonas.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — 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 8 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.

Parent taxon: Desulfomonas Moore et al. 1976 (Approved Lists 1980)

Assigned by: Moore WEC, Johnson JL, Holdeman LV. Emendation of Bacteriodaceae and Butyrivibrio and descriptions of Desulfomonas gen. nov. and ten new species in the genera Desulfomonas, Butyrivibrio, Eubacterium, Clostridium, and Ruminococcus. International Journal of Systematic Bacteriology 1976; 26:238-252.

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Record number: 775589