Title


Sign up here for LPSN updates!


Genus Caedibacter

Warning: In the List of Prokaryotic names with Standing in Nomenclature, an arrow () only indicates the sequence of valid publication of names and does not mean that the last name in the sequence must be used (see: Introduction).

Number of species cited in this file: 5
Number of subspecies cited in this file: 0

Classification (Warning: see also the file "Classification of prokaryotes: Introduction").

 

Caedibacter (ex Preer et al. 1974) Preer and Preer 1982, gen. nov., nom. rev.
Type species: ¤ Caedibacter taeniospiralis (ex Preer et al. 1974) Preer and Preer 1982.
Synonym: "Caedobacter" (sic) Preer et al. 1974.
Etymology: L. n. caedes -is, a killing, slaughter, carnage, massacre, a murderous attack; N.L. masc. n. bacter, a rod; N.L. masc. n. Caedibacter, the bacterium which kills.
Valid publication: PREER Jr. (J.R.) and PREER (L.B.): Revival of names of protozoan endosymbionts and proposal of Holospora caryophila nom. nov. Int. J. Syst. Bacteriol., 1982, 32, 140-141.
Original article in IJSEM Online

Note: According to Beier et al. 2002, of the five species validly published, only ¤ Caedibacter caryophilus and ¤ Caedibacter taeniospiralis (the type species of the genus) have been phylogenetically characterized by their 16S rRNA gene sequences. ¤ Caedibacter caryophilus  was found to be a member of the ¤ Alphaproteobacteria related to the ¤ Rickettsiales. According to Beier et al., ¤ Caedibacter taeniospiralis is not closely related to ¤ Caedibacter caryophilus (80% 16S rRNA sequence similarity) but forms a novel evolutionary lineage within the ¤ Gammaproteobacteria with the family ¤ Francisellaceae as a sister group (87% 16S rRNA sequence similarity). Consequently, the genus Caedibacter is polyphyletic and comprises at least two phylogenetically different bacterial species belonging to two different classes of the Proteobacteria.
Reference: BEIER (C.L.), HORN (M.), MICHEL (R.), SCHWEIKERT (M.), GÖRTZ (H.D.) and 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.
Original article Online

   image

Caedibacter caryophilus corrig. Schmidt et al. 1987, sp. nov.
Type strain: (see also StrainInfo.net) 221 carried in Paramecium caudatum C221 (ATCC 50168.
Sequence accession no. (16S rRNA gene) for the type strain: X71837.
Etymology: G. n. karuon, nut, kernel (in biology, nucleus); N.L. masc. adj. philus (from Gr. fem. adj. philos), friend, loving; N.L. masc. adj. caryophilus, nucleus loving.
Valid publication: SCHMIDT (H.J.), GÖRTZ (H.D.) and QUACKENBUSH (R.L.): Caedibacter caryophila sp. nov., a killer symbiont inhabiting the macronucleus of Paramecium caudatum. Int. J. Syst. Bacteriol., 1987, 37, 459-462.
Original article in IJSEM Online

Notes:
1 The original spelling, Caedibacter caryophila (sic), has been corrected by Euzéby 1997.
Reference: EUZÉBY (J.P.): 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.
Original article in IJSEM Online
2 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.
Reference: BEIER (C.L.), HORN (M.), MICHEL (R.), SCHWEIKERT (M.), GÖRTZ (H.D.) and 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.
Original article Online

   image

Caedibacter paraconjugatus Quackenbush 1982, sp. nov.
Type strain: (see also StrainInfo.net) 570 = ATCC 30638.
Sequence accession no. (16S rRNA gene) for the type strain: not found.
Etymology: Gr. prep. para, beside, alongside of, near, like; L. masc. part. adj. conjugatus, joined together, united; also the specific epithet of a mate killer (Pseudocaedibacter conjugatus); N.L. masc. part. adj. paraconjugatus, similar to (Pseudocaedibacter) conjugatus, similar to mate killers.
Valid publication: Validation List no. 8. Int. J. Syst. Bacteriol., 1982, 32, 266-268.
Effective publication: QUACKENBUSH (R.L.): Genetic relationships among bacterial endosymbionts of Paramecium aurelia. Deoxyribonucleotide sequence relationships among members of Caedobacter. J. Gen. Microbiol., 1978, 108, 181-187.
Validation List no. 8 in IJSEM Online - Effective publication Online

Note: ATCC 30638is a two member culture, a protozoa (Paramecium biaurelia) that carries a bacterial endosymbiont, Caedibacter paraconjugatus. However, the type strain is not available from the ATCC because the endosymbiont was lost.
References:
1 TANG (J.): Personal communication (September 20, 2001).
2 BEIER (C.L.), HORN (M.), MICHEL (R.), SCHWEIKERT (M.), GÖRTZ (H.D.) and 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.
Original article Online

   image

Caedibacter pseudomutans Quackenbush 1982, sp. nov.
Type strain: (see also StrainInfo.net) 51 ml = ATCC 30633.
Sequence accession no. (16S rRNA gene) for the type strain: not found.
Etymology: Gr. adj. pseudês, false; L. part. adj. mutans, altering, changing; N.L. part. adj. pseudomutans, false changing, referring to the fact that it was once thought to be a mutant of Caedibacter taeniospiralis (Dippell, 1950).
Valid publication: Validation List no. 8. Int. J. Syst. Bacteriol., 1982, 32, 266-268.
Effective publication: QUACKENBUSH (R.L.): Genetic relationships among bacterial endosymbionts of Paramecium aurelia. Deoxyribonucleotide sequence relationships among members of Caedobacter. J. Gen. Microbiol., 1978, 108, 181-187.
Validation List no. 8 in IJSEM Online - Effective publication Online

Note: ATCC 30633is a two member culture, a protozoa (Paramecium tetraurelia) that carries a bacterial endosymbiont, Caedibacter pseudomutans. However, the type strain is not available from the ATCC because the endosymbiont was lost.
Reference: BEIER (C.L.), HORN (M.), MICHEL (R.), SCHWEIKERT (M.), GÖRTZ (H.D.) and 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.
Original article Online

   image

Caedibacter taeniospiralis (ex Preer et al. 1974) Preer and Preer 1982, sp. nov., nom. rev. (Type species of the genus.)
Type strain: (see also StrainInfo.net) 51KMJ (Stock 51 with Kappa) = ATCC 30632(The accession numbers refer to protozoan strains carrying the endosymbionts, Paramecium tetraurelia Sonneborn).
Sequence accession no. (16S rRNA gene) for the type strain: AY102612.
Synonym: "Caedobacter (sic) taeniospiralis" Preer et al. 1974.
Etymology: Gr. n. tainia (Latin transliteration taenia), a band, ribbon; N.L. adj. spiralis (from L. n. spira, coil; and L. suff. alis -is -e, suffix denoting pertaining to), coiled; N.L. masc. adj. taeniospiralis, coiled ribbon.
Valid publication: PREER Jr. (J.R.) and PREER (L.B.): Revival of names of protozoan endosymbionts and proposal of Holospora caryophila nom. nov. Int. J. Syst. Bacteriol., 1982, 32, 140-141.
Original article in IJSEM Online

Note: According to Beier et al., Caedibacter taeniospiralis (the type species of the genus) is not closely related to ¤ Caedibacter caryophilus (80% 16S rRNA sequence similarity) but forms a novel evolutionary lineage within the ¤ Gammaproteobacteria with the family ¤ Francisellaceae as a sister group (87% 16S rRNA sequence similarity).
Reference: BEIER (C.L.), HORN (M.), MICHEL (R.), SCHWEIKERT (M.), GÖRTZ (H.D.) and 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.
Original article Online

   image

Caedibacter varicaedens Quackenbush 1982, sp. nov.
Type strain: (see also StrainInfo.net) 7 = ATCC 30637.
Sequence accession no. (16S rRNA gene) for the type strain: not found.
Etymology: L. adj. varius, different, diverse, various; L. v. caedo, to kill; N.L. part. adj. varicaedens, killing in different ways.
Valid publication: Validation List no. 8. Int. J. Syst. Bacteriol., 1982, 32, 266-268.
Effective publication: QUACKENBUSH (R.L.): Genetic relationships among bacterial endosymbionts of Paramecium aurelia. Deoxyribonucleotide sequence relationships among members of Caedobacter. J. Gen. Microbiol., 1978, 108, 181-187.
Validation List no. 8 in IJSEM Online - Effective publication Online

Note: ATCC 30637is a two member culture, a protozoa (Paramecium biaurelia) that carries a bacterial endosymbiont, Caedibacter varicaedens. However, the type strain is not available from the ATCC because the endosymbiont was lost.
Reference: BEIER (C.L.), HORN (M.), MICHEL (R.), SCHWEIKERT (M.), GÖRTZ (H.D.) and 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.
Original article Online

   image