Name: Methanosarcina acetivorans Sowers et al. 1986

Category: Species

Proposed as: sp. nov.

Etymology: a.ce.ti.vo’rans. L. neut. n. acetum, vinegar; L. pres. part. vorans, devouring, consuming; N.L. part. adj. acetivorans, consuming acetic acid

Gender: feminine

Type strain: ATCC 35395; C2A; DSM 2834; JCM 12185; NBRC 100939; OCM 95

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: M59137 Analyse FASTA

Effective publication: Sowers KR, Baron SF, Ferry JG. Methanosarcina acetivorans sp. nov., an Acetotrophic Methane-Producing Bacterium Isolated from Marine Sediments. Appl Environ Microbiol 1984; 47:971-978.

IJSEM list: Anonymous. Validation list no. 20. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1986; 36:354-356.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.11427 (N = 3).
  • 😷 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.
  • 🎓 Name mentioned 277 times in PubMed until 2024-03-27.

Parent taxon: Methanosarcina Kluyver and van Niel 1936 (Approved Lists 1980)

Assigned by: Sowers KR, Baron SF, Ferry JG. Methanosarcina acetivorans sp. nov., an Acetotrophic Methane-Producing Bacterium Isolated from Marine Sediments. Appl Environ Microbiol 1984; 47:971-978.

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Record number: 777925