Name: Porphyromonas macacae (Slots and Genco 1980) Love 1995

Category: Species

Proposed as: comb. nov.

Basonym: Bacteroides melaninogenicus subsp. macacae Slots and Genco 1980

Etymology: ma.ca’cae. N.L. fem. n. Macaca, genus name of the macaque; N.L. gen. fem. n. macacae, of the macaque

Pronunciation (Latin), gender: por-p^hy-RO-mo-nas ma-KA-ka͡e, feminine

Type strain: 7728-L6C; ATCC 33141; CCUG 47703; DSM 20710; JCM 13914; NCTC 13100; Slots' strain 7728-L6C; VPI 10450; VPI 3300

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB547665 Analyse FASTA

Valid publication: Love DN. Porphyromonas macacae comb. nov., a consequence of Bacteroides macacae being a senior synonym of Porphyromonas salivosa. Int. J. Syst. Bacteriol. 1995; 45:90-92. 🇦🇺

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 45, part 1 of the IJSB. Int J Syst Bacteriol 1995; 45:420.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

• Synonyms:

  • Name	Kind
    Bacteroides melaninogenicus subsp. macacae Slots and Genco 1980	homotypic synonym, validly published under the ICNP, distinct rank
    Porphyromonas salivosa (Love et al. 1987) Love et al. 1992	heterotypic synonym, validly published under the ICNP
    Bacteroides salivosus Love et al. 1987	heterotypic synonym, validly published under the ICNP
    Bacteroides macacae (Slots and Genco 1980) Coykendall et al. 1980	homotypic synonym, validly published under the ICNP

• Notes:
  • ⏰ According to Love (1995), this species is an earlier heterotypic synonym of Bacteroides salivosus Love et al. 1987. Publication: Love DN. Porphyromonas macacae comb. nov., a consequence of Bacteroides macacae being a senior synonym of Porphyromonas salivosa. Int. J. Syst. Bacteriol. 1995; 45:90-92. 🇦🇺
  • ⏰ According to Love (1995), this species is an earlier heterotypic synonym of Porphyromonas salivosa (Love et al. 1987) Love et al. 1992. Publication: Love DN. Porphyromonas macacae comb. nov., a consequence of Bacteroides macacae being a senior synonym of Porphyromonas salivosa. Int. J. Syst. Bacteriol. 1995; 45:90-92. 🇦🇺
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 1, note = "animal pathogen - biological class of risk animal: 2". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 2 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2, note = "PV". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2, note = "ht". — 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 13 times in PubMed until 2026-06-11.
  • 🙆 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 species itself.
  • 🧍 According to Bartlett et al. (2022), this species is an established 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: 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. 🇩🇪

Parent taxon: Porphyromonas Shah and Collins 1988

Assigned by: Love DN. Porphyromonas macacae comb. nov., a consequence of Bacteroides macacae being a senior synonym of Porphyromonas salivosa. Int. J. Syst. Bacteriol. 1995; 45:90-92. 🇦🇺

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Record number: 779766