Name: Methanobrevibacter filiformis Leadbetter et al. 1998

Category: Species

Proposed as: sp. nov.

Etymology: fi.li.for’mis. L. neut. n. filum, a thread; L. masc./fem. adj. suff. -formis, -like, in the shape of; from L. fem. n. forma, figure, shape, appearance; N.L. masc./fem. adj. filiformis, thread shaped

Gender: masculine

Type strain: DSM 11501; RFM-3

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: U82322 Analyse FASTA

Effective publication: Leadbetter JR, Crosby LD, Breznak JA. Methanobrevibacter filiformis sp. nov., A filamentous methanogen from termite hindguts. Arch Microbiol 1998; 169:287-292.

IJSEM list: Anonymous. Validation list no. 67. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1998; 48:1083-1084.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    "Methanacia filiformis" (Leadbetter et al. 1998) Protasov and Brune 2023	homotypic synonym, not validly published

• Notes:
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 2 times in PubMed until 2024-03-28.

Parent taxon: Methanobrevibacter Balch and Wolfe 1981

Assigned by: Leadbetter JR, Crosby LD, Breznak JA. Methanobrevibacter filiformis sp. nov., A filamentous methanogen from termite hindguts. Arch Microbiol 1998; 169:287-292.

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Record number: 777821