Etymology:john.so’ni.i.N.L. gen. masc. n.johnsonii, of Johnson, named after the American molecular taxonomist John L. Johnson, who undertook extensive studies on the genetic relationships between oral actinomyces
Valid publication:
Henssge U, Do T, Radford DR, Gilbert SC, Clark D, Beighton D. Emended description of Actinomyces naeslundii and descriptions of Actinomyces oris sp. nov. and Actinomyces johnsonii sp. nov., previously identified as Actinomyces naeslundii genospecies 1, 2 and WVA 963. Int J Syst Evol Microbiol 2009; 59:509-516. 🇬🇧
IJSEM list:
Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 59, part 3 of the IJSEM. Int J Syst Evol Microbiol 2009; 59:1259-1261.
Nomenclatural status:
validly published under the ICNP
Taxonomic status:
correct name (and explicitly recommended for medical use)
Risk group:
2
Notes:
😷 The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 2. — 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 4 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 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. 🇬🇧
Assigned by:
Henssge U, Do T, Radford DR, Gilbert SC, Clark D, Beighton D. Emended description of Actinomyces naeslundii and descriptions of Actinomyces oris sp. nov. and Actinomyces johnsonii sp. nov., previously identified as Actinomyces naeslundii genospecies 1, 2 and WVA 963. Int J Syst Evol Microbiol 2009; 59:509-516. 🇬🇧
Linking:
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