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Genus Methanocaldococcus

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: 7
Number of subspecies cited in this file: 0

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


For a detailed description of this taxon see Bergey’s Manual of Systematics of Archaea and Bacteria (BMSAB).


 

Methanocaldococcus Whitman 2002, gen. nov. (Type genus of the family ¤ Methanocaldococcaceae Whitman et al. 2002).
Type species: ¤ Methanocaldococcus jannaschii (Jones et al. 1984) Whitman 2002.
Etymology: N.L. n. methanum [from French n. méth(yle) and chemical suffix -ane], methane; N.L. pref. methano-, pertaining to methane; L. adj. caldus, hot; N.L. masc. n. coccus (from Gr. masc. n. kokkos, grain, seed), coccus; N.L. masc. n. Methanocaldococcus, a coccus producing methane at hyperthermophilic growth temperatures.
Valid publication: Validation List no. 85. Int. J. Syst. Evol. Microbiol., 2002, 52, 685-690.
Effective publication: WHITMAN (W.B.): Genus I. Methanocaldococcus gen. nov. In: D.R. BOONE, R.W. CASTENHOLZ and G.M. GARRITY (editors): Bergey's Manual of Systematic Bacteriology, second edition, vol. 1 (The Archaea and the deeply branching and phototrophic Bacteria), Springer-Verlag, New York, 2001, pp. 243-245.
Validation List no. 85 in IJSEM Online

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Methanocaldococcus bathoardescens Stewart et al. 2015, sp. nov.
Type strain: (see also StrainInfo.net) JH146=DSM 27223=KACC 18232.
Sequence accession no. (16S rRNA) for the type strain: CP009149.1.
Whole-genome sequence accession no. for the type strain: CP009149.1.
Etymology: Gr. n. bathos, depth; L. part. adj. ardescens, becoming hot, erupting (for a volcano); N.L. part. adj. bathoardescens, erupting in the depth.
Source: Environmental - marine.
Valid publication: STEWART, L. C., JUNG, J. H., KIM, Y. T., KWON, S. W., PARK, C. S. and HOLDEN, J. F. 2015. Methanocaldococcus bathoardescens sp. nov., a hyperthermophilic methanogen isolated from a volcanically active deep-sea hydrothermal vent. Int. J. Syst. Evol. Microbiol., 65, 1280-1283.
Original article in IJSEM Online

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Methanocaldococcus fervens (Jeanthon et al. 1999) Whitman 2002, comb. nov.
Type strain: (see also StrainInfo.net) AG86 = DSM 4213 = JCM 15782.
Sequence accession no. (16S rRNA gene) for the type strain: AF056938.
Basonym: ¤ Methanococcus fervens Jeanthon et al. 1999.
Etymology: L. masc. adj. fervens, boiling hot, glowing, burning, referring to its high growth temperature.
Valid publication: Validation List no. 85. Int. J. Syst. Evol. Microbiol., 2002, 52, 685-690.
Effective publication: WHITMAN (W.B.): Genus I. Methanocaldococcus gen. nov. In: D.R. BOONE, R.W. CASTENHOLZ and G.M. GARRITY (editors): Bergey's Manual of Systematic Bacteriology, second edition, vol. 1 (The Archaea and the deeply branching and phototrophic Bacteria), Springer-Verlag, New York, 2001, pp. 243-245.
Validation List no. 85 in IJSEM Online

Note: At the time of publication, the type strain was not deposited in two publicly accessible service collections in different countries, and Methanocaldococcus fervens (Jeanthon et al. 1999) Whitman 2002 was not validly published [Rules 27(3) and 30]. However, according to the Judicial Opinion 81, Methanocaldococcus fervens (Jeanthon et al. 1999) Whitman 2002 is now considered to be validly published, since deposit in a second culture collection in a different country has been documented.
References:
1 EUZÉBY (J.P.) and TINDALL (B.J.): Status of strains that contravene Rules 27(3) and 30 of the Bacteriological Code. Request for an Opinion. Int. J. Syst. Evol. Microbiol., 2004, 54, 293-301.
Original article in IJSEM Online
2 JUDICIAL COMMISSION OF THE INTERNATIONAL COMMITTEE ON SYSTEMATICS OF PROKARYOTES: Status of strains that contravene Rules 27 (3) and 30 of the International Code of Nomenclature of Bacteria. Opinion 81. Int. J. Syst. Evol. Microbiol., 2008, 58, 1755-1763.
Opinion 81 in IJSEM Online

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Methanocaldococcus indicus L'Haridon et al. 2003, sp. nov.
Type strain: (see also StrainInfo.net) SL43 = DSM 15027 = JCM 11886.
Sequence accession no. (16S rRNA gene) for the type strain: AF547621.
Etymology: L. masc. adj. indicus, of India, referring to the Indian Ocean, where the type strain was isolated.
Valid publication: L'HARIDON (S.), REYSENBACH (A.L.), BANTA (A.), MESSNER (P.), SCHUMANN (P.), STACKEBRANDT (E.) and JEANTHON (C.): Methanocaldococcus indicus sp. nov., a novel hyperthermophilic methanogen isolated from the Central Indian Ridge. Int. J. Syst. Evol. Microbiol., 2003, 53, 1931-1935.
Original article in IJSEM Online

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Methanocaldococcus infernus (Jeanthon et al. 1998) Whitman 2002, comb. nov.
Type strain: (see also StrainInfo.net) ME = DSM 11812 = JCM 15783.
Sequence accession no. (16S rRNA gene) for the type strain: AF025822.
Basonym: ¤ Methanococcus infernus Jeanthon et al. 1998.
Etymology: L. masc. adj. infernus, of the lower regions, referring to the place of isolation, deep-sea hydrothermal vents.
Valid publication: Validation List no. 85. Int. J. Syst. Evol. Microbiol., 2002, 52, 685-690.
Effective publication: WHITMAN (W.B.): Genus I. Methanocaldococcus gen. nov. In: D.R. BOONE, R.W. CASTENHOLZ and G.M. GARRITY (editors): Bergey's Manual of Systematic Bacteriology, second edition, vol. 1 (The Archaea and the deeply branching and phototrophic Bacteria), Springer-Verlag, New York, 2001, pp. 243-245.
Validation List no. 85 in IJSEM Online

Note: At the time of publication, the type strain was not deposited in two publicly accessible service collections in different countries, and Methanocaldococcus infernus (Jeanthon et al. 1998) Whitman 2002 was not validly published [Rules 27(3) and 30]. However, according to the Judicial Opinion 81, Methanocaldococcus infernus (Jeanthon et al. 1998) Whitman 2002 is now considered to be validly published, since deposit in a second culture collection in a different country has been documented.
References:
1 EUZÉBY (J.P.) and TINDALL (B.J.): Status of strains that contravene Rules 27(3) and 30 of the Bacteriological Code. Request for an Opinion. Int. J. Syst. Evol. Microbiol., 2004, 54, 293-301.
Original article in IJSEM Online
2 JUDICIAL COMMISSION OF THE INTERNATIONAL COMMITTEE ON SYSTEMATICS OF PROKARYOTES: Status of strains that contravene Rules 27 (3) and 30 of the International Code of Nomenclature of Bacteria. Opinion 81. Int. J. Syst. Evol. Microbiol., 2008, 58, 1755-1763.
Opinion 81 in IJSEM Online

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Methanocaldococcus jannaschii (Jones et al. 1984) Whitman 2002, comb. nov. (Type species of the genus.)
Type strain: (see also StrainInfo.net) JAL-1 = ATCC 43067= CIP 104961 = DSM 2661 = JCM 10045 = NBRC 100440 = OCM 168.
Sequence accession no. (16S rRNA gene) for the type strain: L77117.
Basonym: ¤ Methanococcus jannaschii Jones et al. 1984.
Etymology: N.L. gen. masc. n. jannaschii, of Jannasch; named for the marine microbiologist H.W. Jannasch.
Valid publication: Validation List no. 85. Int. J. Syst. Evol. Microbiol., 2002, 52, 685-690.
Effective publication: WHITMAN (W.B.): Genus I. Methanocaldococcus gen. nov. In: D.R. BOONE, R.W. CASTENHOLZ and G.M. GARRITY (editors): Bergey's Manual of Systematic Bacteriology, second edition, vol. 1 (The Archaea and the deeply branching and phototrophic Bacteria), Springer-Verlag, New York, 2001, pp. 243-245.
Validation List no. 85 in IJSEM Online

Notes:
1 According to Rules 27(3) and 30, this name is not validly published because the effective publication only documents deposit of the type strain in a single recognized culture collection. However, according to the Judicial Opinion 81, Methanocaldococcus jannaschii (Jones et al. 1984) Whitman 2002 is to be considered to be validly published.
References:
1 EUZÉBY (J.P.) and TINDALL (B.J.): Status of strains that contravene Rules 27(3) and 30 of the Bacteriological Code. Request for an Opinion. Int. J. Syst. Evol. Microbiol., 2004, 54, 293-301.
Original article in IJSEM Online
2 JUDICIAL COMMISSION OF THE INTERNATIONAL COMMITTEE ON SYSTEMATICS OF PROKARYOTES: Status of strains that contravene Rules 27 (3) and 30 of the International Code of Nomenclature of Bacteria. Opinion 81. Int. J. Syst. Evol. Microbiol., 2008, 58, 1755-1763.
Opinion 81 in IJSEM Online
2 The strain CIP 104961 is not available.
Reference: BIZET (C.): Personal communication (June 28, 2005).

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Methanocaldococcus villosus Bellack et al. 2011, sp. nov.
Type strain: (see also StrainInfo.net) KIN24-T80 = DSM 22612 = JCM 16315.
Sequence accession no. (16S rRNA gene) for the type strain: FJ766848.
Etymology: L. masc. adj. villosus, hairy, rough, shaggy, villous, referring to the numerous flagella that form a dense network or bundle and the extraordinary surface structure in SEM preparations.
Valid publication: BELLACK (A.), HUBER (H.), RACHEL (R.), WANNER (G.) and WIRTH (R.): Methanocaldococcus villosus sp. nov., a heavily flagellated archaeon that adheres to surfaces and forms cell–cell contacts. Int. J. Syst. Evol. Microbiol., 2011, 61, 1239-1245.
Original article in IJSEM Online

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Methanocaldococcus vulcanius (Jeanthon et al. 1999) Whitman 2002, comb. nov.
Type strain: (see also StrainInfo.net) M7 = ATCC 700851= DSM 12094.
Sequence accession no. (16S rRNA gene) for the type strain: AF051404.
Basonym: ¤ Methanococcus vulcanius Jeanthon et al. 1999.
Etymology: L. masc. adj. vulcanius, of Vulcanus (Vulcan), the Roman fire god, and to the place of isolation, the deep-sea hydrothermal vents
Valid publication: Validation List no. 85. Int. J. Syst. Evol. Microbiol., 2002, 52, 685-690.
Effective publication: WHITMAN (W.B.): Genus I. Methanocaldococcus gen. nov. In: D.R. BOONE, R.W. CASTENHOLZ and G.M. GARRITY (editors): Bergey's Manual of Systematic Bacteriology, second edition, vol. 1 (The Archaea and the deeply branching and phototrophic Bacteria), Springer-Verlag, New York, 2001, pp. 243-245.
Validation List no. 85 in IJSEM Online

Note: According to Rules 27(3) and 30, this name is not validly published because the effective publication only documents deposit of the type strain in a single recognized culture collection. However, according to the Judicial Opinion 81, Methanocaldococcus vulcanius (Jeanthon et al. 1999) Whitman 2002 is to be considered to be validly published.
References:
1 EUZÉBY (J.P.) and TINDALL (B.J.): Status of strains that contravene Rules 27(3) and 30 of the Bacteriological Code. Request for an Opinion. Int. J. Syst. Evol. Microbiol., 2004, 54, 293-301.
Original article in IJSEM Online
2 JUDICIAL COMMISSION OF THE INTERNATIONAL COMMITTEE ON SYSTEMATICS OF PROKARYOTES: Status of strains that contravene Rules 27 (3) and 30 of the International Code of Nomenclature of Bacteria. Opinion 81. Int. J. Syst. Evol. Microbiol., 2008, 58, 1755-1763.
Opinion 81 in IJSEM Online

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