Title


Sign up here for LPSN updates!


Genus Haloferax

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: 12
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).


 

Haloferax Torreblanca et al. 1986, gen. nov.
Type species: ¤ Haloferax volcanii (Mullakhanbhai and Larson 1975) Torreblanca et al. 1986.
Recommended three-letter abbreviation: Hfx. (see the file ¤ "Three-letter code for abbreviations of generic names").
Etymology: Gr. n. hals halos, salt; L. adj. ferax -acis, fertile; N.L. neut. n. Haloferax, salt (-requiring) and fertile.
Valid publication: Validation List no. 22. Int. J. Syst. Bacteriol., 1986, 36, 573-576.
Effective publication: TORREBLANCA (M.), RODRIGUEZ-VALERA (F.), JUEZ (G.), VENTOSA (A.), KAMEKURA (M.) and 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.
Validation List no. 22 in IJSEM Online - Effective publication Online

Haloferax Torreblanca et al. 1986 emend. Oren et al. 2009.
Type species: ¤ Haloferax volcanii (Mullakhanbhai and Larson 1975) Torreblanca et al. 1986.
Recommended three-letter abbreviation: Hfx. (see the file ¤ "Three-letter code for abbreviations of generic names").
Etymology: Gr. n. hals halos, salt; L. adj. ferax -acis, fertile; N.L. neut. n. Haloferax, salt (-requiring) and fertile.
Reference: OREN (A.), ARAHAL (D.R.) and VENTOSA (A.): Emended descriptions of genera of the family Halobacteriaceae. Int. J. Syst. Evol. Microbiol., 2009, 59, 637-642.
Original article in IJSEM Online

   image

Haloferax alexandrinus Asker and Ohta 2002, sp. nov.
Type strain: (see also StrainInfo.net) TM = CIP 107620 = JCM 10717 = KCTC 12962 = NBRC 16590.
Sequence accession no. (16S rRNA gene) for the type strain: AB037474.
Etymology: L. masc. adj. alexandrinus, pertaining to Alexandria, a city in Egypt, where the strain was isolated.
Valid publication: ASKER (D.) and OHTA (Y.): Haloferax alexandrinus sp. nov., an extremely halophilic canthaxanthin-producing archaeon from a solar saltern in Alexandria (Egypt). Int. J. Syst. Evol. Microbiol., 2002, 52, 729-738.
Original article in IJSEM Online

Notes:
1 According to Rules 27(3) and 30, this name is not validly published, because the original publication makes reference to the deposit of the type strain in a single recognized culture collection. However, according to the Judicial Opinion 81, Haloferax alexandrinus Asker and Ohta 2002 is 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
2 The genus name Haloferax is in the neuter gender. So, according to Rule 12c (1), Haloferax alexandrinus is an illegitimate name because the epithet must be in the neuter gender; i.e. alexandrinum, not alexandrinus.

   image

Haloferax chudinovii Saralov et al. 2014, sp. nov.
Type strain: (see also StrainInfo.net) RS75=VKPM B-11279=DSM 26526.
Sequence accession no. (16S rRNA) for the type strain: JX669135.
Whole-genome sequence accession no. for the type strain: N/A.
Etymology: L. masc. adj. chudinovii, referring to Nikolay K. Chudinov, a pioneer in the isolation of microorganismus from ancient salt deposits in Russia.
Source: Environmental.
Valid publication: Validation List no. 155. List of new names and new combinations previously effectively, but not validly, published. Int. J Syst. Evol. Microbiol., 64 (2014), 1-5.
Validation List Online
Effective publication: SARALOV, A. I., BASLEROV, R. V. and KUZNETSOV, B. B. 2013. Haloferax chudinovii sp. nov., a halophilic archaeon from Permian potassium salt deposits. Extremophiles, 17, 499-504.
Effective publication Online

   image

Haloferax denitrificans (Tomlinson et al. 1986) Tindall et al. 1989, comb. nov.
Type strain: (see also StrainInfo.net) S1 = ATCC 35960= DSM 4425 = JCM 8864 = VKM B-1754.
Sequence accession no. (16S rRNA gene) for the type strain: D14128.
Basonym: ¤ Halobacterium denitrificans Tomlinson et al. 1986.
Etymology: N.L. part. adj. denitrificans, denitrifying.
Valid publication: TINDALL (B.J.), TOMLINSON (G.A.) and HOCHSTEIN (L.I.): Transfer of Halobacterium denitrificans (Tomlinson, Jahnke, and Hochstein) to the genus Haloferax as Haloferax denitrificans comb. nov. Int. J. Syst. Bacteriol., 1989, 39, 359-360.
Original article in IJSEM Online

   image

Haloferax elongans Allen et al. 2008, sp. nov.
Type strain: (see also StrainInfo.net) SA5 = ATCC BAA-1513 = JCM 14791 = UNSW 104100.
Sequence accession no. (16S rRNA gene) for the type strain: DQ860977.
Etymology: L. part. adj. elongans, elongating/extending, referring to the capacity of the species to form very long rods.
Valid publication: ALLEN (M.A.), GOH (F.), LEUKO (S.), ECHIGO (A.), MIZUKI (T.), USAMI (R.), KAMEKURA (M.), NEILAN (B.A.) and BURNS (B.P.): Haloferax elongans sp. nov. and Haloferax mucosum sp. nov., isolated from microbial mats from Hamelin Pool, Shark Bay, Australia. Int. J. Syst. Evol. Microbiol., 2008, 58, 798-802.
Original article in IJSEM Online

Note: The specific epithet, elongans, is a "L. part. adj.", not a "N.L. part. adj." as cited in the paper by Allen et al. 2008.

   image

Haloferax gibbonsii Juez et al. 1986, sp. nov.
Type strain: (see also StrainInfo.net) MA2.38 = ATCC 33959= DSM 4427 = JCM 8863 = NBRC 102184 = VKM B-1756.
Sequence accession no. (16S rRNA gene) for the type strain: D13378.
Etymology: N.L. gen. masc. n. gibbonsii, of Gibbons; named for the Canadian microbiologist N.E. Gibbons, one of the pioneers in the study of halobacteria.
Valid publication: Validation List no. 22. Int. J. Syst. Bacteriol., 1986, 36, 573-576.
Effective publication: JUEZ (G.), RODRIGUEZ-VALERA (F.), VENTOSA (A.) and KUSHNER (D.J.): Haloarcula hispanica spec. nov. and Haloferax gibbonsii spec. nov., two new species of extremely halophilic archaebacteria. Syst. Appl. Microbiol., 1986, 8, 75-79.
Validation List no. 22 in IJSEM Online - Effective publication Online

   image

Haloferax larsenii Xu et al. 2007, sp. nov.
Type strain: (see also StrainInfo.net) ZJ206 = CGMCC 1.5347 = JCM 13917.
Sequence accession no. (16S rRNA gene) for the type strain: AY838278.
Etymology: N.L. gen. n. larsenii, of Larsen, named in honour of Professor Helge Larsen, one of the pioneers of halophile research.
Valid publication: XU (X.W.), WU (Y.H.), WANG (C.S.), OREN (A.), ZHOU (P.J.) and WU (M.): Haloferax larsenii sp. nov., an extremely halophilic archaeon from a solar saltern. Int. J. Syst. Evol. Microbiol., 2007, 57, 717-720.
Original article in IJSEM Online

   image

Haloferax lucentense corrig. Gutierrez et al. 2004, sp. nov.
Type strain: (see also StrainInfo.net) Aa 2.2 = CCM 7023 = CECT 5871 = CIP 107410 = DSM 14919 = JCM 9276 = NCIMB 13854.
Sequence accession no. (16S rRNA gene) for the type strain: AB081732.
Etymology: N.L. neut. adj. lucentense, pertaining to the city of Lucentum, Alicante, Spain.
Valid publication: Validation List no. 95. Int. J. Syst. Evol. Microbiol., 2004, 54, 1-2.
Effective publication: GUTIERREZ (M.C.), KAMEKURA (M.), HOLMES (M.L.), DYALL-SMITH (M.L.) and VENTOSA (A.): Taxonomic characterization of Haloferax sp. (" H. alicantei") strain Aa 2.2: description of Haloferax lucentensis sp. nov. Extremophiles, 2002, 6, 479-483.
Validation List no. 95 in IJSEM Online - Effective publication Online

Notes:
1 The original spelling of the specific epithet, lucentensis (sic), has been corrected on validation according to Rule 61.
Reference: LISTS EDITOR, IJSEM: Validation List no. 95 (footnote ||). Int. J. Syst. Evol. Microbiol., 2004, 54, 1-2.
Validation List no. 95 in IJSEM Online
2 Haloferax lucentense corrig. Gutierrez et al. 2004 was previously known as Haloferax sp., or Haloferax phenon K, or "Haloferax alicantei" Holmes et al. [HOLMES (M.L.), SCOPES (R.K.), MORITZ (R.L.), SIMPSON (R.J.), ENGLERT (C.), PFEIFFER (F.) and DYALL-SMITH (M.L.): Purification and analysis of an extremely halophilic β-galactosidase from Haloferax alicantei. Biochim. Biophys. Acta, 1997, 1337, 276-286.]

   image

Haloferax mediterranei (Rodriguez-Valera et al. 1983) Torreblanca et al. 1987, comb. nov.
Type strain: (see also StrainInfo.net) R-4 = ATCC 33500= CCM 3361 = DSM 1411 = IFO (now NBRC) 14739 = JCM 8866 = VKM B-1748.
Sequence accession no. (16S rRNA gene) for the type strain: D11107.
Basonym: ¤ Halobacterium mediterranei Rodriguez-Valera et al. 1983.
Etymology: N.L. gen. n. mediterranei (from L. Mediterraneum mare), of the Mediterranean Sea.
Valid publication: Validation List no. 23. Int. J. Syst. Bacteriol., 1987, 37, 179-180.
Effective publication: TORREBLANCA (M.), RODRIGUEZ-VALERA (F.), JUEZ (G.), VENTOSA (A.), KAMEKURA (M.) and 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.
Validation List no. 23 in IJSEM Online - Effective publication Online

Note: In the reference citation of Haloferax mediterranei (see: Validation List no. 23), the author's name Kamekura is erroneously cited as Kamemura.
References:
1 Syst. Appl. Microbiol., 1986, 8, 89-99.
Effective publication Online
2 EUZÉBY (J.P.) and KUDO (T.): Corrigenda to the Validation Lists. Int. J. Syst. Evol. Microbiol., 2001, 51, 1933-1938.
Original article in IJSEM Online

   image

Haloferax mucosum Allen et al. 2008, sp. nov.
Type strain: (see also StrainInfo.net) PA12 = ATCC BAA-1512 = JCM 14792 = UNSW 104200.
Sequence accession no. (16S rRNA gene) for the type strain: DQ860980.
Etymology: L. neut. adj. mucosum, slimy, a property of the colonies.
Valid publication: ALLEN (M.A.), GOH (F.), LEUKO (S.), ECHIGO (A.), MIZUKI (T.), USAMI (R.), KAMEKURA (M.), NEILAN (B.A.) and BURNS (B.P.): Haloferax elongans sp. nov. and Haloferax mucosum sp. nov., isolated from microbial mats from Hamelin Pool, Shark Bay, Australia. Int. J. Syst. Evol. Microbiol., 2008, 58, 798-802.
Original article in IJSEM Online

   image

Haloferax prahovense Enache et al. 2007, sp. nov.
Type strain: (see also StrainInfo.net) TL6 = DSM 18310 = JCM 13924.
Sequence accession no. (16S rRNA gene) for the type strain: AB258305.
Etymology: N.L. neut. adj. prahovense, pertaining to Prahova county, Romania, from where the type strain was isolated.
Valid publication: ENACHE (M.), ITOH (T.), KAMEKURA (M.), TEODOSIU (G.) and DUMITRU (L.): Haloferax prahovense sp. nov., an extremely halophilic archaeon isolated from a Romanian salt lake. Int. J. Syst. Evol. Microbiol., 2007, 57, 393-397.
Original article in IJSEM Online

   image

Haloferax sulfurifontis Elshahed et al. 2004, sp. nov.
Type strain: (see also StrainInfo.net) M6 = CCM 7217 = CIP 108334 = DSM 16227 = JCM 12327.
Sequence accession no. (16S rRNA gene) for the type strain: AY458601.
Etymology: L. n. sulfur sulfuris, sulfur; L. n. fons fontis, spring; N.L. gen. n. sulfurifontis, of a sulfurous spring.
Valid publication: ELSHAHED (M.S.), SAVAGE (K.N.), OREN (A.), GUTIERREZ (M.C.), VENTOSA (A.) and KRUMHOLZ (L.R.): Haloferax sulfurifontis sp. nov., a halophilic archaeon isolated from a sulfide- and sulfur-rich spring. Int. J. Syst. Evol. Microbiol., 2004, 54, 2275-2279.
Original article in IJSEM Online

   image

Haloferax volcanii (Mullakhanbhai and Larsen 1975) Torreblanca et al. 1986, comb. nov. (Type species of the genus.)
Type strain: (see also StrainInfo.net) DS2 = ATCC 29605= DSM 3757 = IFO (now NBRC) 14742 = JCM 8879 = NCCB 85050 = NCIMB 2012 = VKM B-1768.
Sequence accession no. (16S rRNA gene) for the type strain: AY425724, CP001956 (complete genome).
Basonym: ¤ Halobacterium volcanii Mullakhanbhai and Larsen 1975 (Approved Lists 1980).
Etymology: N.L. gen. n. volcanii, of Volcani; named after Israeli microbiologist B.E. Volcani, discoverer of life in the Dead Sea.
Valid publication: Validation List no. 22. Int. J. Syst. Bacteriol., 1986, 36, 573-576.
Effective publication: TORREBLANCA (M.), RODRIGUEZ-VALERA (F.), JUEZ (G.), VENTOSA (A.), KAMEKURA (M.) and 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.
Validation List no. 22 in IJSEM Online - Effective publication Online

Note: In Validation List no. 22, Haloferax volcanii is erroneously proposed as a new species.
Reference: EUZÉBY (J.P.) and KUDO (T.): Corrigenda to the Validation Lists. Int. J. Syst. Evol. Microbiol., 2001, 51, 1933-1938.
Original article in IJSEM Online

   image