Name: Halanaerobium praevalens corrig. Zeikus et al. 1984

Category: Species

Proposed as: sp. nov.

Etymology: prae’va.lens. N.L. neut. part. adj. praevalens, very powerful, very strong, here prevalent

Pronunciation, gender: PRA͡E-wa-lens, neuter

Type strain: ATCC 33744; DSM 2228; GSL

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: M59123 Analyse FASTA

Effective publication: Zeikus G, Hegge PW, Thompson TE, Phelps TJ, Langworthy TA. Isolation and description of Haloanaerobium praevalens gen. nov. and sp. nov., an obligately anaerobic halophile common to Great Salt Lake sediments. Curr. Microbiol. 1983; 9:225-234.

IJSEM list: Anonymous. Validation list no. 16. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1984; 34:503-504.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Haloanaerobium praevalens Zeikus et al. 1984	other spelling of name, inaccurate spelling

• Notes:
  • 🥇 Nomenclatural type of the genus Halanaerobium corrig. Zeikus et al. 1984. Publication: Zeikus G, Hegge PW, Thompson TE, Phelps TJ, Langworthy TA. Isolation and description of Haloanaerobium praevalens gen. nov. and sp. nov., an obligately anaerobic halophile common to Great Salt Lake sediments. Curr. Microbiol. 1983; 9:225-234.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1. — 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 5 times in PubMed until 2025-06-04.
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Ivanova N, Sikorski J, Chertkov O, Nolan M, Lucas S, Hammon N, Deshpande S, Cheng JF, Tapia R, Han C, et al. Complete genome sequence of the extremely halophilic Halanaerobium praevalens type strain (GSL). Stand Genomic Sci 2011; 4:312-321. 🇺🇸
  • 🧍 The original spelling, Haloanaerobium (sic), has been corrected by Oren 2000. Publication: Oren A. Change of the names Haloanaerobiales, Haloanaerobiaceae and Haloanaerobium to Halanaerobiales, Halanaerobiaceae and Halanaerobium, respectively, and further nomenclatural changes within the order Halanaerobiales. Int J Syst Evol Microbiol 2000; 50:2229-2230. 🇮🇱

Parent taxon: Halanaerobium corrig. Zeikus et al. 1984

Assigned by: Zeikus G, Hegge PW, Thompson TE, Phelps TJ, Langworthy TA. Isolation and description of Haloanaerobium praevalens gen. nov. and sp. nov., an obligately anaerobic halophile common to Great Salt Lake sediments. Curr. Microbiol. 1983; 9:225-234.

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Record number: 776664