Name: Lactonifactor longoviformis Clavel et al. 2007

Category: Species

Proposed as: sp. nov.

Etymology: long.o.vi.for’mis. L. masc. adj. longus, long; L. neut. n. ovum, egg; L. masc./fem. adj. suff. -formis, shaped like; N.L. masc./fem. adj. longoviformis, shaped like a long egg

Gender: masculine

Type strain: CCUG 51487; DSM 17459; ED-Mt61/PYG-s6

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: DQ100449 Analyse FASTA

Effective publication: Clavel T, Lippman R, Gavini F, Dore J, Blaut M. Clostridium saccharogumia sp. nov. and Lactonifactor longoviformis gen. nov., sp. nov., two novel human faecal bacteria involved in the conversion of the dietary phytoestrogen secoisolariciresinol diglucoside. Syst Appl Microbiol 2007; 30:16-26.

IJSEM list: Euzeby JP. Validation list no. 115. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2007; 57:893-897.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🥇 Nomenclatural type of the genus Lactonifactor Clavel et al. 2007. Publication: Clavel T, Lippman R, Gavini F, Dore J, Blaut M. Clostridium saccharogumia sp. nov. and Lactonifactor longoviformis gen. nov., sp. nov., two novel human faecal bacteria involved in the conversion of the dietary phytoestrogen secoisolariciresinol diglucoside. Syst Appl Microbiol 2007; 30:16-26.
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 5 times in PubMed until 2024-03-27.

Parent taxon: Lactonifactor Clavel et al. 2007

Assigned by: Clavel T, Lippman R, Gavini F, Dore J, Blaut M. Clostridium saccharogumia sp. nov. and Lactonifactor longoviformis gen. nov., sp. nov., two novel human faecal bacteria involved in the conversion of the dietary phytoestrogen secoisolariciresinol diglucoside. Syst Appl Microbiol 2007; 30:16-26.

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Record number: 777429