Name: Chromohalobacter salexigens Arahal et al. 2001

Category: Species

Proposed as: sp. nov.

Etymology: sal.ex’i.gens. L. masc. n. sal, salt; L. v. exigo, to demand; N.L. masc. part. adj. salexigens, salt-demanding

Pronunciation (Latin), gender: … sal-EKS-i-gens, masculine

Type strain: ATCC BAA-138; CCM 4921; CECT 5384; CIP 106854; DSM 3043; NCIMB 13768

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: LC190966 Analyse FASTA

Valid publication: Arahal DR, Garcia MT, Vargas C, Canovas D, Nieto JJ, Ventosa A. Chromohalobacter salexigens sp. nov., a moderately halophilic species that includes Halomonas elongata DSM 3043 and ATCC 33174. Int J Syst Evol Microbiol 2001; 51:1457-1462. 🇪🇸

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 51, part 4 of the IJSEM. Int J Syst Evol Microbiol 2001; 51:1621-1623.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Chromohalobacter israelensis (Huval et al. 1996) Arahal et al. 2001

Risk group: 1

• Synonyms:

  • Name	Kind
    Halomonas israelensis Huval et al. 1996	heterotypic synonym, validly published under the ICNP
    Chromohalobacter israelensis (Huval et al. 1996) Arahal et al. 2001	heterotypic synonym, validly published under the ICNP

• Notes:
  • 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Göker M. List of changes in taxonomic opinion no. 40. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2024; 74:6482.
  • ❗ Chromohalobacter salexigens is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Chromohalobacter.
  • 🧬 The phylogenomic assignment score of this taxon is 0.13931 (N = 12).
  • 😷 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 68 times in PubMed until 2025-06-04.
  • 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded pathogenicity of other species in the genus.
  • 🧍 The genome of the type strain was sequenced as part of the DOE Joint Genome Institute DOEM 2004 Programme. Publication: Copeland A, O'Connor K, Lucas S, Lapidus A, Berry KW, Detter JC, Del Rio TG, Hammon N, Dalin E, Tice H, et al. Complete genome sequence of the halophilic and highly halotolerant Chromohalobacter salexigens type strain (1H11^T). Stand Genomic Sci 2011; 5:379-388. 🇩🇪

Parent taxon: Chromohalobacter Ventosa et al. 1989

Assigned by: Arahal DR, Garcia MT, Vargas C, Canovas D, Nieto JJ, Ventosa A. Chromohalobacter salexigens sp. nov., a moderately halophilic species that includes Halomonas elongata DSM 3043 and ATCC 33174. Int J Syst Evol Microbiol 2001; 51:1457-1462. 🇪🇸

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Record number: 774706