Name: Acholeplasma laidlawii (Sabin 1941) Edward and Freundt 1970 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: "Sapromyces laidlawi" Sabin 1941

Etymology: laid.law’i.i. N.L. gen. masc. n. laidlawii, of Laidlaw, named after P. Laidlaw, one of the microbiologists who first isolated this species

Gender: neuter

Type strain: ATCC 23206; CIP 75.27; DSM 23060; IFO 14400; NBRC 14400; NCTC 10116; PG8 ATCC 23206

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB680603 Analyse FASTA

Effective publication: Edward DG, Freundt EA. Amended nomenclature for strains related to Mycoplasma laidlawii. J Gen Microbiol 1970; 62:1-2.

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

Risk group: 2

• Synonyms:

  • Name	Kind
    "Sapromyces laidlawi" Sabin 1941	homotypic synonym, not validly published, basonym of name in Approved Lists

• Notes:
  • Nomenclatural type of the genus Acholeplasma Edward and Freundt 1970 (Approved Lists 1980). Publication: Edward DG, Freundt EA. Amended nomenclature for strains related to Mycoplasma laidlawii. J Gen Microbiol 1970; 62:1-2.
  • According to Bartlett et al. (2022), no evidence of human infection was found for this species. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology 2022; 168:0.
  • On the Approved Lists of Bacterial Names, and on the Approved Lists of Bacterial Names (Amended Edition), this taxon is incorrectly cited as Acholeplasma laidlawii (Freundt 1955 [sic]) Edward and Freundt 1970. Publication: Tully JG. Genus I. Acholeplasma Edward and Freundt 1970, 1AL. In: Krieg NR, Holt JG (eds), Bergey's Manual of Systematic Bacteriology, first edition, vol. 1, The Williams & Wilkins Co, Baltimore, 1984, p. 775-781.
  • The full TRBA 466 classification is: risk group = 2, note = "t".

Parent taxon: Acholeplasma Edward and Freundt 1970 (Approved Lists 1980)

Assigned by: Edward DG, Freundt EA. Amended nomenclature for strains related to Mycoplasma laidlawii. J Gen Microbiol 1970; 62:1-2.

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Record number: 772547