Name: Haloferax Torreblanca et al. 1986

Category: Genus

Proposed as: gen. nov.

Etymology: Ha.lo.fe.rax. Gr. masc. n. hals (gen. halos), salt; L. adj. ferax, fertile; N.L. neut. n. Haloferax, salt (-requiring) and fertile

Gender: neuter (stem: Haloferac-)

Type species: Haloferax volcanii (Mullakhanbhai and Larsen 1975) Torreblanca et al. 1986

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Effective publication: Torreblanca M, Rodriguez-Valera F, Juez G, Ventosa A, Kamekura M, Kates M. Classification of non-alkaliphilic halobacteria based on numerical taxonomy and polar lipid composition, and description of Haloarcula gen. nov. and Haloferax gen. nov. Syst. Appl. Microbiol. 1986; 8:89-99.

IJSEM list: Anonymous. Validation list no. 22. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1986; 36:573-576.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Emendations:
  • Oren et al. 2009 Oren A, Arahal DR, Ventosa A. Emended descriptions of genera of the family Halobacteriaceae. Int J Syst Evol Microbiol 2009; 59:637-642. Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 59, part 3 of the IJSEM. Int J Syst Evol Microbiol 2009; 59:1259-1261.

• Notes:
  • 🥇 Nomenclatural type of the family Haloferacaceae Gupta et al. 2015. Publication: Gupta RS, Naushad S, Baker S. Phylogenomic analyses and molecular signatures for the class Halobacteria and its two major clades: a proposal for division of the class Halobacteria into an emended order Halobacteriales and two new orders, Haloferacales ord. nov. and Natrialbales ord. nov., containing the novel families Haloferacaceae fam. nov. and Natrialbaceae fam. nov. Int J Syst Evol Microbiol 2015; 65:1050-1069.
  • 🥇 Nomenclatural type of the order Haloferacales Gupta et al. 2015. Publication: Gupta RS, Naushad S, Baker S. Phylogenomic analyses and molecular signatures for the class Halobacteria and its two major clades: a proposal for division of the class Halobacteria into an emended order Halobacteriales and two new orders, Haloferacales ord. nov. and Natrialbales ord. nov., containing the novel families Haloferacaceae fam. nov. and Natrialbaceae fam. nov. Int J Syst Evol Microbiol 2015; 65:1050-1069.
  • 🧕 Boone et al. (2001) assigned this genus to the family Halobacteriaceae Gibbons 1974 (Approved Lists 1980). Publication: Garrity GM, Holt JG. The Road Map to the Manual. In: Boone DR, Castenholz RW, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, second edition, vol. 1 (The Archaea and the deeply branching and phototrophic Bacteria), Springer-Verlag, New York, 2001, p. 119-166.
  • 🧕 Gupta et al. (2015) assigned this genus to the order Haloferacales Gupta et al. 2015. Publication: Gupta RS, Naushad S, Baker S. Phylogenomic analyses and molecular signatures for the class Halobacteria and its two major clades: a proposal for division of the class Halobacteria into an emended order Halobacteriales and two new orders, Haloferacales ord. nov. and Natrialbales ord. nov., containing the novel families Haloferacaceae fam. nov. and Natrialbaceae fam. nov. Int J Syst Evol Microbiol 2015; 65:1050-1069.
  • 🚋 The type species of this genus has alternatively been placed in the genus Halobacterium Elazari-Volcani 1957 (Approved Lists 1980). Publication: Mullakhanbhai MF, Larsen H. Halobacterium volcanii spec. nov., a Dead Sea halobacterium with a moderate salt requirement. Arch Microbiol 1975; 104:207-214.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Halojerax"; "Halqferax".
  • 🖹 Minimal standards for the description of new taxa in this group were published in 2024. Publication: Cui HL, Hou J, Amoozegar MA, Dyall-Smith ML, de la Haba RR, Minegishi H, Montalvo-Rodriguez R, Oren A, Sanchez-Porro C, Ventosa A, et al. Proposed minimal standards for description of new taxa of the class Halobacteria. Int J Syst Evol Microbiol 2024; 74:6290.
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Oren A, Ventosa A. International Committee on Systematics of Prokaryotes. Subcommittee on the taxonomy of Halobacteriaceae. Int J Syst Evol Microbiol 2002; 52:289-290.
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Oren A, Arahal DR, Ventosa A. International Committee on Systematics of Prokaryotes Subcommittee on the Taxonomy of Halobacteria and Subcommittee on the Taxonomy of Halomonadaceae. Minutes of the joint open meeting, 28 June 2022, Alicante, Spain. Int J Syst Evol Microbiol 2022; 72:5584.
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Oren A, Ventosa A. International Committee on Systematics of Prokaryotes subcommittee on the taxonomy of Halobacteria and subcommittee on the taxonomy of Halomonadaceae. Minutes of the joint open meeting, 26 June 2019, Cluj-Napoca, Romania. Int J Syst Evol Microbiol 2019; 69:3657-3661.
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Oren A, Ventosa A. International Committee on Systematic Bacteriology Subcommittee on the taxonomy of Halobacteriaceae. Minutes of the meetings, 16 August 1999, Sydney, Australia. Int J Syst Evol Microbiol 2000; 50:1405-1407.
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Arahal DR, Oren A, Ventosa A. International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Halobacteria and Subcommittee on the taxonomy of Halomonadaceae. Minutes of the joint open meeting, 11 July 2017, Valencia, Spain. Int J Syst Evol Microbiol 2017; 67:4279-4283.
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Oren A, Ventosa A. International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Halobacteriaceae and subcommittee on the taxonomy of Halomonadaceae. Minutes of the joint open meeting, 23 May 2016, San Juan, Puerto Rico. Int J Syst Evol Microbiol 2016; 66:4291-4295.
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Oren A, Ventosa A. International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Halobacteriaceae and Subcommittee on the taxonomy of Halomonadaceae: minutes of the joint open meeting, 31 July 2014, Montreal, Canada. Int J Syst Evol Microbiol 2014; 64:3915-3918.
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: . International Committee on Systematics of Prokaryotes. Subcommittee on the taxonomy of Halobacteriaceae. Int J Syst Evol Microbiol 2002; 52:289-290.
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Nair GB, Holmes B. International Committee on Systematics of Prokaryotes. Subcommittee on the taxonomy of Halobacteriaceae. Int J Syst Evol Microbiol 2002; 52:289-290.
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Oren A, Ventosa A. International Committee on Systematics of Prokaryotes; Subcommittee on the taxonomy of Halobacteriaceae; Minutes of the meetings, 5 September 2004, Ljubljana, Slovenia. International Journal of Systematic and Evolutionary Microbiology 2005; 55:543-544.
  • 🎰 The BRCs most frequently used for deposits in this group are: JCM: 19; DSM: 16; ATCC: 6; CIP: 6; CECT: 5; KCTC: 5; CCM: 5; NBRC: 5; NCIMB: 4; VKM: 4.
  • 🧍 Pittman et al. (1991) suggested the abbreviation "HLFX" for this genus name but this does not appear to be of practical relevance any longer. Publication: Pittman KF, Walczak CA, Lock CM. Codes and abbreviations for approved of effectively published names of genera of bacteria published from January 1980 to December 1990. Int J Syst Bacteriol 1991; 41:571-579.

Subdivision:

Number of child taxa with a validly published and correct name: 13
Number of child taxa with a validly published name, including synonyms: 13
Total number of child taxa: 23

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Haloferax alexandrinum corrig. Asker and Ohta 2002	validly published under the ICNP	correct name
    Haloferax alexandrinus Asker and Ohta 2002	inaccurate spelling	misspelling
    "Haloferax alicantei" Holmes et al. 1997	not validly published	synonym (and no standing)
    Haloferax chudinovii Saralov et al. 2014	validly published under the ICNP	correct name
    Haloferax denitrificans (Tomlinson et al. 1986) Tindall et al. 1989	validly published under the ICNP	correct name
    Haloferax elongans Allen et al. 2008	validly published under the ICNP	correct name
    Haloferax gibbonsii Juez et al. 1986	validly published under the ICNP	correct name
    Haloferax larsenii Xu et al. 2007	validly published under the ICNP	correct name
    "Haloferax litoreum" Cho et al. 2021	not validly published	preferred name (not correct name)
    Haloferax lucentense corrig. Gutierrez et al. 2004	validly published under the ICNP	correct name
    Haloferax lucentensis Gutierrez et al. 2004	inaccurate spelling	misspelling
    "Haloferax marinisediminis" Cho et al. 2021	not validly published	preferred name (not correct name)
    "Haloferax marinum" Cho et al. 2021	not validly published	preferred name (not correct name)
    "Haloferax marisrubri" Zhang et al. 2020	not validly published	preferred name (not correct name)
    "Haloferax massiliense" Khelaifia et al. 2018	not validly published	preferred name (not correct name)
    "Haloferax massiliensis" Khelaifia and Raoult 2016	not validly published	synonym (and no standing)
    Haloferax mediterranei (Rodriguez-Valera et al. 1983) Torreblanca et al. 1987	validly published under the ICNP	correct name
    Haloferax mucosum Allen et al. 2008	validly published under the ICNP	correct name
    Haloferax namakaokahaiae McDuff et al. 2017	validly published under the ICNP	correct name
    Haloferax prahovense Enache et al. 2007	validly published under the ICNP	correct name
    "Haloferax profundi" Zhang et al. 2020	not validly published	preferred name (not correct name)
    Haloferax sulfurifontis Elshahed et al. 2004	validly published under the ICNP	correct name
    Haloferax volcanii (Mullakhanbhai and Larsen 1975) Torreblanca et al. 1986	validly published under the ICNP	correct name

Parent taxon: Haloferacaceae Gupta et al. 2015

Assigned by: Gupta RS, Naushad S, Baker S. Phylogenomic analyses and molecular signatures for the class Halobacteria and its two major clades: a proposal for division of the class Halobacteria into an emended order Halobacteriales and two new orders, Haloferacales ord. nov. and Natrialbales ord. nov., containing the novel families Haloferacaceae fam. nov. and Natrialbaceae fam. nov. Int J Syst Evol Microbiol 2015; 65:1050-1069.

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Record number: 517050