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Species Bacteroides massiliensis

Name: Bacteroides massiliensis Fenner et al. 2005

Category, proposed as: species, sp. nov.

Etymology: mas.si.li.en’sis. L. masc. adj. massiliensis, of Massilia, the ancient Greek and Roman name for Marseille, France, where the type strain was isolated

Pronunciation (Latin), gender: bak-ter-o-I-des mas-si-li-EN-sis, masculine

Type strain: B 84634; CCUG 48901; CIP 107942; DSM 17679; JCM 13223

16S rRNA gene: AB510703 Analysetree FASTA download

Valid publication: Fenner L, Roux V, Mallet MN, Raoult D. Bacteroides massiliensis sp. nov., isolated from blood culture of a newborn. Int J Syst Evol Microbiol 2005; 55:1335-1337. 🇫🇷

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 55, part 3 of the IJSEM. Int J Syst Evol Microbiol 2005; 55:1747-1749.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Phocaeicola massiliensis (Fenner et al. 2005) García-López et al. 2020

Risk group: 2

  • Emendations:
    • Hahnke et al. 2016 Hahnke RL, Meier-Kolthoff JP, Garcia-Lopez M, Mukherjee S, Huntemann M, Ivanova NN, Woyke T, Kyrpides NC, Klenk HP, Goker M. Genome-Based Taxonomic Classification of Bacteroidetes. Front Microbiol 2016; 7:2003. 🇩🇪 Oren A, Garrity GM. List of changes in taxonomic opinion no. 26. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2017; 67:2081-2086.
  • Notes:
    • ❗ Bacteroides massiliensis 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 Bacteroides.
    • 😷 The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2. — The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 1, note = "+". — 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 41 times in PubMed until 2026-06-11.
    • 🙅 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 species itself.
    • 🧍 According to Bartlett et al. (2022), this species is a putative human pathogen. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology (Reading) 2022; 168:0. 🇬🇧
    • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Mukherjee S, Seshadri R, Varghese NJ, Eloe-Fadrosh EA, Meier-Kolthoff JP, Goker M, Coates RC, Hadjithomas M, Pavlopoulos GA, Paez-Espino D, et al. 1,003 reference genomes of bacterial and archaeal isolates expand coverage of the tree of life. Nat Biotechnol 2017; 35:676-683. 🇺🇸

Parent taxon: Bacteroides Castellani and Chalmers 1919 (Approved Lists 1980)

Assigned by: Fenner L, Roux V, Mallet MN, Raoult D. Bacteroides massiliensis sp. nov., isolated from blood culture of a newborn. Int J Syst Evol Microbiol 2005; 55:1335-1337. 🇫🇷

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.773955Link copied to clipboard

Record number: 773955