Species ***Lactobacillus* *acidophilus***

Classification:

Bacteria Bacillati Bacillota Bacilli Lactobacillales Lactobacillaceae Lactobacillus Lactobacillus acidophilus

Name: Lactobacillus acidophilus (Moro 1900) Hansen and Mocquot 1970 (Approved Lists 1980)

Category, proposed as: species, comb. nov.

Basonym: "Bacillus acidophilus" Moro 1900

Etymology: a.ci.do’phi.lus. L. neut. adj. acidum, an acid; from L. masc. adj. acidus, sour; N.L. adj. philus -a -um, friend, loving; from Gr. adj. philos -ê -on, loving; N.L. masc. adj. acidophilus, acid-loving

Pronunciation (Latin), gender: lak-to-ba-KIL-lus a-ki-DO-p^hi-lus, masculine

Type strain: ATCC 4356; CCUG 5917; CIP 76.13; DSM 20079; IFO 13951; JCM 1132; LMG 13550; LMG 9433; NBIMCC 8896; NBRC 13951; NCTC 12980; NRRL B-4495; VKM B-1660

Conduct genome-based taxonomy at

16S rRNA gene: M58802 Analyse FASTA

Effective publication: Hansen PA, Mocquot G. Lactobacillus acidophilus (Moro) comb. nov. International Journal of Systematic Bacteriology 1970; 20:325-327.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

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

Risk group: 1

Synonyms:

Name	Kind
"Bacillus acidophilus" Moro 1900	homotypic synonym, not validly published, basonym of name in Approved Lists

Emendations:
- Zheng et al. 2020 Zheng J, Wittouck S, Salvetti E, Franz CMAP, Harris HMB, Mattarelli P, O'Toole PW, Pot B, Vandamme P, Walter J, et al. A taxonomic note on the genus Lactobacillus: Description of 23 novel genera, emended description of the genus Lactobacillus Beijerinck 1901, and union of Lactobacillaceae and Leuconostocaceae. Int J Syst Evol Microbiol 2020; 70:2782-2858. 🇮🇹
  Notes:
  - 🧍 This name was not found in the expected IJSEM notification list.

Notes:
- 🧬 The phylogenomic assignment score of this taxon is 0.06299 (N = 28).
- 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1, note = "PIIC". — 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 4883 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 pathogenicity 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. 🇬🇧

Parent taxon: Lactobacillus Beijerinck 1901 (Approved Lists 1980)

Assigned by: Hansen PA, Mocquot G. Lactobacillus acidophilus (Moro) comb. nov. International Journal of Systematic Bacteriology 1970; 20:325-327.

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.777244Link copied to clipboard

Record number: 777244

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Species ***Lactobacillus* *acidophilus***