Name: Faecalibacterium langellae Ang et al. 2025

Category: Species

Proposed as: sp. nov.

Etymology: lan.gel’lae. N.L. gen. masc. n. langellae, of Langella, named after the French microbiologist Philippe Langella, to honour his work on host-m icrobe interactions of beneficial bacteria, including Faecalibacterium

Pronunciation (Latin), gender: … lan-GEL-la͡e, neuter

Type strain: CIP 112513; CNCM I-4541; JCM 39552

Conduct genome-based taxonomy at

16S rRNA gene: MF185659 Analyse FASTA

Valid publication: Ang Li Xuan A, Robert V, Hisatomi A, Hirasaki M, Maeno S, Ohkuma M, Sakamoto M, Chatel JM, Endo A. Faecalibacterium langellae sp. nov. isolated from human faeces. Int J Syst Evol Microbiol 2025; 75:6804. 🇫🇷

IJSEM list: Oren A, Göker M. Notification list. Notification that new names and new combinations have appeared in volume 75, part 6 of the IJSEM. Int J Syst Evol Microbiol 2025; 75:6862.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

• Notes:
  • 😡 This taxon name is a homonym of "Faecalibacterium langellae" Plomp and Harmsen 2024.
  • 🧬 The phylogenomic assignment score of this taxon is 0.32110 (N = 35).
  • 🎓 Name mentioned 1 time in PubMed until 2025-06-10.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus.
  • 🧍 See also Ang et al. (2025). Publication: Ang A, Robert V, Hisatomi A, Hirasaki M, Maeno S, Ohkuma M, Sakamoto M, Chatel JM, Endo A. Corrigendum: Faecalibacterium langellae sp. nov. isolated from human faeces. Int J Syst Evol Microbiol 2025; 75:6838. 🇫🇷

Parent taxon: Faecalibacterium Duncan et al. 2002

Assigned by: Ang Li Xuan A, Robert V, Hisatomi A, Hirasaki M, Maeno S, Ohkuma M, Sakamoto M, Chatel JM, Endo A. Faecalibacterium langellae sp. nov. isolated from human faeces. Int J Syst Evol Microbiol 2025; 75:6804. 🇫🇷

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Record number: 65862