Species Pectobacterium cypripedii

Name: Pectobacterium cypripedii (Hori 1911) Brenner et al. 1973 (Approved Lists 1980)

Category, proposed as: species, comb. nov.

Basonym: "Bacillus cypripedii" Hori 1911

Etymology: cy.pri.pe’di.i. N.L. neut. n. Cypripedium, generic name; N.L. gen. neut. n. cypripedii, of Cypripedium, of cypripedium orchids

Pronunciation (Latin), gender: pek-to-bak-TE-ri-um ky-pri-PE-di-i, neuter

Type strain: ATCC 29267; CFBP 3613; CIP 105195; DSM 3873; LMG 2655; LMG 2657; NCPPB 3004; PDDCC 1591

Conduct genome-based taxonomy at

16S rRNA gene: AJ233413 Analyse FASTA

Effective publication: Brenner DJ, Steigerwalt AG, Miklos GV, Fanning GR. Deoxyribonucleic acid relatedness among Erwiniae and other Enterobacteriaceae: the soft-rot organisms (Genus Pectobacterium Waldee). International Journal of Systematic Bacteriology 1973; 23:205-216.

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: synonym (and not recommended for medical use)

Correct name: Pantoea cypripedii (Hori 1911) Brady et al. 2010

Risk group: 2

• Synonyms:

  • Name	Kind
    Pantoea cypripedii (Hori 1911) Brady et al. 2010	homotypic synonym, validly published under the ICNP
    "Bacillus cypripedii" Hori 1911	homotypic synonym, not validly published, basonym of name in Approved Lists
    Erwinia cypripedii (Hori 1911) Bergey et al. 1923 (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.
    • 🧍 Pectobacterium cypripedii (Hori 1911) Brenner et al. 1973 (Approved Lists 1980) and Erwinia cypripedii (Hori 1911) Bergey et al. 1923 (Approved Lists 1980) have the same type strain and therefore are homotypic synonyms [Rules 24a and 24b (1)]. — 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 (see: Erwinia); (2) to transfer the species of cluster III into the new genus Brenneria Hauben et al. 1999; (3) to unite the species of cluster II, Erwinia carotovora subsp. atroseptica, Erwinia carotovora subsp. betavasculorum, Erwinia carotovora subsp. carotovora, Erwinia carotovora subsp. odorifera, Erwinia carotovora subsp. wasabiae, Erwinia cacticida, Erwinia chrysanthemi and Erwinia cypripedii in the genus Pectobacterium Waldee 1945 (Approved Lists 1980); (4) to emend Pectobacterium cypripedii [Pectobacterium cypripedii (Hori 1911) Brenner et al. 1973 (Approved Lists 1980) emend. Hauben et al. 1998]. So, Pectobacterium cypripedii is to be considered as an authentic species of the genus Pectobacterium.

• Notes:
  • ❗ Pectobacterium cypripedii is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Pectobacterium.
  • 😷 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 9 times in PubMed until 2026-06-11.
  • 🙅 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.
  • 🧍 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. 🇺🇸
  • 🧍 Plant pathogenic according to Bull et al. (2012). Publication: Bull CT, De Boer SH, Denny TP, Firrao G, Fischer Le Saux M, Saddler GS, Scortichini M, Stead DE, Takikawa Y. List of new names of plant pathogenic bacteria (2008-2010). Journal of Plant Pathology 2012; 94:21-27. 🇺🇸

Parent taxon: Pectobacterium Waldee 1945 (Approved Lists 1980)

Assigned by: Brenner DJ, Steigerwalt AG, Miklos GV, Fanning GR. Deoxyribonucleic acid relatedness among Erwiniae and other Enterobacteriaceae: the soft-rot organisms (Genus Pectobacterium Waldee). International Journal of Systematic Bacteriology 1973; 23:205-216.

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Record number: 779202