Name: Thiobacillus halophilus Wood and Kelly 1995

Category: Species

Proposed as: sp. nov.

Etymology: ha.lo’phi.lus. Gr. masc. n. hals (gen. halos), salt; N.L. masc. adj. suff. -philus, friend, loving; from Gr. masc. adj. philos, on; N.L. masc. adj. halophilus, salt-loving

Gender: masculine

Type strain: 204; ATCC 49870; DSM 6132

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: U58020 Analyse FASTA

Effective publication: Wood AP, Kelly DP. Isolation and characterisation of Thiobacillus halophilus sp. nov., a sulphur-oxidising autotrophic eubacterium from a Western Australian hypersaline lake. Arch. Microbiol. 1991; 156:277-280.

IJSEM list: Anonymous. Validation list no. 53. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1995; 45:418-419.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Guyparkeria halophila (Wood and Kelly 1995) Boden 2017

Risk group: 1

• Synonyms:

  • Name	Kind
    Halothiobacillus halophilus (Wood and Kelly 1995) Kelly and Wood 2000	homotypic synonym, validly published under the ICNP
    Guyparkeria halophila (Wood and Kelly 1995) Boden 2017	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Thiobacillus halophilus 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 Thiobacillus.
  • 😷 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 Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — 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 3 times in PubMed until 2025-06-04.

Parent taxon: Thiobacillus Beijerinck 1904 (Approved Lists 1980)

Assigned by: Wood AP, Kelly DP. Isolation and characterisation of Thiobacillus halophilus sp. nov., a sulphur-oxidising autotrophic eubacterium from a Western Australian hypersaline lake. Arch. Microbiol. 1991; 156:277-280.

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Record number: 782712