Species Caedibacter caryophilus

Name: Caedibacter caryophilus corrig. Schmidt et al. 1987

Category, proposed as: species, sp. nov.

Etymology: ca.ry.o’phi.lus. Gr. neut. n. karyon, nut, kernel (in biology, nucleus); N.L. masc. adj. suff. -philus, friend, loving; from Gr. masc. adj. philos, on; N.L. masc. adj. caryophilus, nucleus loving

Pronunciation (Latin), gender: ka͡e-di-BAK-ter ka-ry-O-p^hi-lus, masculine

Type strain: 221; 221 carried in Paramecium caudatum C221; ATCC 50168

16S rRNA gene: X71837 Analyse FASTA

Valid publication: Schmidt HJ, Görtz HD, Quackenbush RL. Caedibacter caryophila sp. nov., a killer symbiont inhabiting the macronucleus of Paramecium caudatum. Int. J. Syst. Bacteriol. 1987; 37:459-462.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Caedibacter caryophila Schmidt et al. 1987	other spelling of name, inaccurate spelling

• Notes:
  • 😷 The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1, note = "PI". — The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 1, note = "n". — 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 6 times in PubMed until 2026-06-11.
  • 🧍 Nom. corrig.: IJSB 47:585; Caedibacter caryophila (sic). Publication: Euzéby JP. Revised nomenclature of specific or subspecific epithets that do not agree in gender with generic names that end in -bacter. Int. J. Syst. Bacteriol. 1997; 47:585.
  • 🧍 According to Beier et al., Caedibacter caryophilus is not closely related to Caedibacter taeniospiralis (the type species of the genus). Caedibacter caryophilus is a member of the Alphaproteobacteria related to the Rickettsiales, while Caedibacter taeniospiralis forms a novel evolutionary lineage within the Gammaproteobacteria with the family Francisellaceae as a sister group. Publication: Beier CL, Horn M, Michel R, Schweikert M, Gortz HD, Wagner M. The genus Caedibacter comprises endosymbionts of Paramecium spp. related to the Rickettsiales (Alphaproteobacteria) and to Francisella tularensis (Gammaproteobacteria). Appl Environ Microbiol 2002; 68:6043-6050. 🇩🇪
  • 🧍 The original spelling, Caedibacter caryophila (sic), has been corrected by Euzéby 1997. Publication: Euzéby JP. Revised nomenclature of specific or subspecific epithets that do not agree in gender with generic names that end in -bacter. Int. J. Syst. Bacteriol. 1997; 47:585.

Parent taxon: Caedibacter (ex Preer et al. 1974) Preer and Preer 1982

Assigned by: Schmidt HJ, Görtz HD, Quackenbush RL. Caedibacter caryophila sp. nov., a killer symbiont inhabiting the macronucleus of Paramecium caudatum. Int. J. Syst. Bacteriol. 1987; 37:459-462.

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Record number: 783574