Name: Erwinia rhapontici corrig. (Millard 1924) Burkholder 1948 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: "Phytomonas rhapontica" Millard 1924

Etymology: rha.pon.ti.ci. N.L. neut. n. rhaponticum, specific epithet of Rheum rhaponticum, rhubarb; N.L. gen. neut. n. rhapontici, of rhaponticum, of rhubarb

Gender: feminine

Type strain: ATCC 29283; CFBP 3163; CIP 105202; DSM 4484; ICMP 1582; LMG 2688; NCPPB 1578

See detailed strain information at

16S rRNA gene: AJ233417 Analyse FASTA

Effective publication: Burkholder WH. Genus I. Erwinia Winslow et al. In: Breed RS, Murray EGD, Hitchens AP (eds), Bergey's Manual of Determinative Bacteriology, 6th ed., The Williams & Wilkins Co, Baltimore, 1948, p. 463-478.

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: 2

• Synonyms:

  • Name	Kind
    "Phytomonas rhapontica" Millard 1924	homotypic synonym, inaccurate spelling
    "Phytomonas rhapontici" corrig. Millard 1924	homotypic synonym, not validly published, basonym of name in Approved Lists
    Pectobacterium rhapontici corrig. (Millard 1924) Patel and Kulkarni 1951 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Emendations:
  • Hauben et al. 1998 Hauben L, Moore ER, Vauterin L, Steenackers M, Mergaert J, Verdonck L, Swings J. Phylogenetic position of phytopathogens within the Enterobacteriaceae. Syst Appl Microbiol 1998; 21:384-397. 🇧🇪 Anonymous. Validation list no. 68. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1999; 49:1-3.
    Notes:
    • 📧 The e-mail address of the corresponding author given in the associated publication is not functional any more.
    • 🧍 The species of the genus Erwinia Winslow et al. 1920 (Approved Lists 1980) may be divided into three phylogenetic groups according to the results of 16S rDNA sequences. Hauben et al. 1999 propose (1) to restrict the genus Erwinia to the species of cluster I: Erwinia amylovora, Erwinia mallotivora, Erwinia persicina corrig., Erwinia psidii, Erwinia rhapontici and Erwinia tracheiphila; (2) to emend Erwinia rhapontici [Erwinia rhapontici (Millard 1924) Burkholder 1948 (Approved Lists 1980) emend. Hauben et al. 1998. Type strain: strain LMG 2688 = NCPPB 1578 = ATCC 29283]. So, Erwinia rhapontici is to be considered as an authentic Erwinia.

• Notes:
  • 😷 The risk group for Belgium has been imported on 2024-02-01. The full classification is: risk group = 1, note = "plant pathogen - biological class of risk plant: 2". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2, note = "PP". — The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 1, note = "p". — 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 55 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.
  • 🧍 Plant pathogenic according to Bull et al. (2007). Publication: Bull CT, De Boer SH, Denny TP, Firrao G, Fischer Le Saux M, Saddler GS, Scortichini M, Stead DE, Takikawa Y. Comprehensive list of names of plant pathogenic bacteria, 1980-2007. Journal of Plant Pathology 2010; 92:551-592. 🇺🇸

Parent taxon: Erwinia Winslow et al. 1920 (Approved Lists 1980)

Assigned by: Burkholder WH. Genus I. Erwinia Winslow et al. In: Breed RS, Murray EGD, Hitchens AP (eds), Bergey's Manual of Determinative Bacteriology, 6th ed., The Williams & Wilkins Co, Baltimore, 1948, p. 463-478.

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Record number: 776028