Name: Clavibacter sepedonicus (Spieckermann and Kotthoff 1914) Nouioui et al. 2018

Category: Species

Proposed as: comb. nov.

Basonym: "Bacterium sepedonicum" Spieckermann and Kotthoff 1914

Etymology: se.pe.do’ni.cus. Gr. fem. n. sêpedôn, rottenness, decay, putrefaction; L. neut. adj. suff. -icum, suffix used with the sense of pertaining to; N.L. masc. adj. sepedonicus, pertaining to decay

Pronunciation, gender: se-pe-DO-ni-kus, masculine

Type strain: ATCC 33113; CCUG 23908; CFBP 2049; CIP 104844; DSM 20744; ICMP 2535; JCM 9667; LMG 2889; NCPPB 2137; VKM Ac-1405

Conduct genome-based taxonomy at

16S rRNA gene: AM410694 Analyse FASTA

Effective publication: Nouioui I, Carro L, Garcia-Lopez M, Meier-Kolthoff JP, Woyke T, Kyrpides NC, Pukall R, Klenk HP, Goodfellow M, Goker M. Genome-Based Taxonomic Classification of the Phylum Actinobacteria. Front Microbiol 2018; 9:2007. 🇩🇪

IJSEM list: Oren A, Garrity GM. Validation list no. 184. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2018; 68:3379-3393.

Nomenclatural status: validly published under the ICNP, illegitimate name

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Clavibacter sepedonicus (Spieckermann and Kotthoff 1914) Li et al. 2018

• Synonyms:

  • Name	Kind
    "Bacterium sepedonicum" Spieckermann and Kotthoff 1914	homotypic synonym, not validly published, basonym of name in Approved Lists
    Corynebacterium sepedonicum (Spieckermann and Kotthoff 1914) Skaptason and Burkholder 1942 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    Clavibacter michiganensis subsp. sepedonicus corrig. (Spieckermann and Kotthoff 1914) Davis et al. 1984	homotypic synonym, validly published under the ICNP, distinct rank
    Clavibacter michiganense subsp. sepedonicus (Spieckermann and Kotthoff 1914) Davis et al. 1984	homotypic synonym, inaccurate spelling, distinct rank
    Clavibacter michiganense subsp. sepedonicum (Spieckermann and Kotthoff 1914) Davis et al. 1984	homotypic synonym, inaccurate spelling, distinct rank
    Clavibacter sepedonicus (Spieckermann and Kotthoff 1914) Li et al. 2018	homotypic synonym, validly published under the ICNP
    Clavibacter michiganensis subsp. sepedonicum (Spieckermann and Kotthoff 1914) Davis et al. 1984	homotypic synonym, inaccurate spelling, distinct rank
    Corynebacterium michiganense subsp. sepedonicum (Spieckermann and Kotthoff 1914) Carlson and Vidaver 1982	homotypic synonym, validly published under the ICNP, distinct rank

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.23411 (N = 58).
  • 😷 The taxon name shown here has no risk group assigned, but is the homotypic synonym of Corynebacterium sepedonicum (Spieckermann and Kotthoff 1914) Skaptason and Burkholder 1942 (Approved Lists 1980), which has a risk group (Swiss Confederation) above 1. This may require that the name shown here is not treated as the correct name for practical purposes.
  • 😷 The taxon name shown here has no risk group assigned, but is the homotypic synonym of Clavibacter michiganensis subsp. sepedonicus corrig. (Spieckermann and Kotthoff 1914) Davis et al. 1984, which has a risk group (Swiss Confederation) above 1. This may require that the name shown here is not treated as the correct name for practical purposes.
  • 🎓 Name mentioned 17 times in PubMed until 2025-06-04.
  • 🥱 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of the species itself. This name is not taxonomically suspended any more (but still isn't preferred) in favour of Corynebacterium sepedonicum (Spieckermann and Kotthoff 1914) Skaptason and Burkholder 1942 (Approved Lists 1980). Publication: Skaptason JB, Burkholder WH. Classification and nomenclature of the pathogen causing bacterial ring rot of potatoes. Phytopathology 1942; 32:439-441. Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.
  • 🧍 Later isonym of Clavibacter sepedonicus (Spieckermann and Kotthoff 1914) Li et al. 2018. Publication: Li X, Tambong J, Yuan KX, Chen W, Xu H, Levesque CA, De Boer SH. Re-classification of Clavibacter michiganensis subspecies on the basis of whole-genome and multi-locus sequence analyses. Int J Syst Evol Microbiol 2018; 68:234-240. 🇨🇦

Parent taxon: Clavibacter Davis et al. 1984

Assigned by: Nouioui I, Carro L, Garcia-Lopez M, Meier-Kolthoff JP, Woyke T, Kyrpides NC, Pukall R, Klenk HP, Goodfellow M, Goker M. Genome-Based Taxonomic Classification of the Phylum Actinobacteria. Front Microbiol 2018; 9:2007. 🇩🇪

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Record number: 7144