Name: Klebsiella terrigena Izard et al. 1981

Category: Species

Proposed as: sp. nov.

Etymology: ter.ri’ge.na. N.L. masc./fem. n. terrigena, child of the earth, referring to the isolation from soil

Pronunciation, gender: ter-RI-ge-na, feminine

Type strain: 84; ATCC 33257; CCUG 12372; CCUG 12372 B; CIP 80.07; CUETM 77-176; DSM 2687; Gavini L 84; HAMBI 1302; IFO 14941; JCM 1687; LMG 3222; NBRC 14941; NCTC 13038

Conduct genome-based taxonomy at

16S rRNA gene: MG846020 Analyse FASTA

Valid publication: Izard D, Ferragut C, Gavini F, Kersters K, De Ley J, Leclerc H. Klebsiella terrigena, a new species from soil and water. Int. J. Syst. Bacteriol. 1981; 31:116-127.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 2

• Synonyms:

  • Name	Kind
    Raoultella terrigena (Izard et al. 1981) Drancourt et al. 2001	homotypic synonym, validly published under the ICNP

• Notes:
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1, note = "PIIC". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1. — The risk group for Taiwan has been imported on 2024-11-03. The full classification is: risk group = 1, note = "P650 = v". — 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 51 times in PubMed until 2025-06-04.
  • 🙆 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.
  • 🧍 In the paper by Izard et al. 1981, the type strain CIP 80.7 is cited as CIP 80-07 (sic). Publication: Euzeby JP. List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet. Int J Syst Bacteriol 1997; 47:590-592.

Parent taxon: Klebsiella Trevisan 1885 (Approved Lists 1980)

Assigned by: Izard D, Ferragut C, Gavini F, Kersters K, De Ley J, Leclerc H. Klebsiella terrigena, a new species from soil and water. Int. J. Syst. Bacteriol. 1981; 31:116-127.

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Record number: 777157