Name: Acholeplasma modicum Leach 1973 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: mo.di.cum. L. neut. adj. modicum, having or keeping a proper measure, moderate, referring to moderate growth

Gender: neuter

Type strain: ATCC 29102; NCTC 10134; PG 49

Conduct genome-based taxonomy at

16S rRNA gene: M23933 Analyse FASTA

Effective publication: Leach RH. Further studies on classification of bovine strains of mycoplasmatales, with proposals for new species, Acholeplasma modicum and Mycoplasma alkalescens. J Gen Microbiol 1973; 75:135-153.

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
    Haploplasma modicum (Leach 1973) Watanabe et al. 2021	homotypic synonym, validly published under the ICNP

• Notes:
  • The phylogenomic assignment score of this taxon is -0.01326 (N = 1).
  • 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.
  • The full TRBA 466 classification is: risk group = 2, note = "t".

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

Assigned by: Leach RH. Further studies on classification of bovine strains of mycoplasmatales, with proposals for new species, Acholeplasma modicum and Mycoplasma alkalescens. J Gen Microbiol 1973; 75:135-153.

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Record number: 783254