Name: Pseudothermotoga elfii (Ravot et al. 1995) Bhandari and Gupta 2014

Category: Species

Proposed as: comb. nov.

Basonym: Thermotoga elfii Ravot et al. 1995

Etymology: el.fi’i. N.L. gen. neut. n. elfii, of ELF, named after ELF-Aquitaine

Gender: feminine

Type strain: ATCC 51869; DSM 9442; SEBR 6459; SERB

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X80790 Analyse FASTA

Effective publication: Bhandari V, Gupta RS. Molecular signatures for the phylum (class) Thermotogae and a proposal for its division into three orders (Thermotogales, Kosmotogales ord. nov. and Petrotogales ord. nov.) containing four families (Thermotogaceae, Fervidobacteriaceae fam. nov., Kosmotogaceae fam. nov. and Petrotogaceae fam. nov.) and a new genus Pseudothermotoga gen. nov. with five new combinations. Antonie Van Leeuwenhoek 2014; 105:143-168.

IJSEM list: Oren A, Garrity GM. Validation list no. 158. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2014; 64:2184-2187.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Thermotoga elfii Ravot et al. 1995	homotypic synonym, validly published under the ICNP

• Emendations:
  • Belahbib et al. 2018 Belahbib H, Summers ZM, Fardeau ML, Joseph M, Tamburini C, Dolla A, Ollivier B, Armougom F. Towards a congruent reclassification and nomenclature of the thermophilic species of the genus Pseudothermotoga within the order Thermotogales. Syst Appl Microbiol 2018; 41:555-563. Oren A, Garrity GM. List of changes in taxonomic opinion no. 30. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2019; 69:1850-1851.

• Notes:
  • The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Mukherjee S, Seshadri R, Varghese NJ, Eloe-Fadrosh EA, Meier-Kolthoff JP, Goker M, Coates RC, Hadjithomas M, Pavlopoulos GA, Paez-Espino D, et al. 1,003 reference genomes of bacterial and archaeal isolates expand coverage of the tree of life. Nat Biotechnol 2017; 35:676-683.

Parent taxon: Pseudothermotoga Bhandari and Gupta 2014

Assigned by: Bhandari V, Gupta RS. Molecular signatures for the phylum (class) Thermotogae and a proposal for its division into three orders (Thermotogales, Kosmotogales ord. nov. and Petrotogales ord. nov.) containing four families (Thermotogaceae, Fervidobacteriaceae fam. nov., Kosmotogaceae fam. nov. and Petrotogaceae fam. nov.) and a new genus Pseudothermotoga gen. nov. with five new combinations. Antonie Van Leeuwenhoek 2014; 105:143-168.

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Record number: 791934