Name: Acidithiobacillus thiooxidans (Waksman and Joffe 1922) Kelly and Wood 2000

Category: Species

Proposed as: comb. nov.

Basonym: Thiobacillus thiooxidans Waksman and Joffe 1922 (Approved Lists 1980)

Etymology: thi.o.o.xi’dans. Gr. neut. n. theîon, sulfur; N.L. v. oxido, make acid, oxidize; N.L. masc. part. adj. thiooxidans, sulfur-oxidizing

Pronunciation (Latin), gender: … t^hi-o-o-KSI-dans, masculine

Type strain: ATCC 19377; CIP 104597; DSM 14887; JCM 3867; NCIB 8343; NCIMB 8343

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: Y11596 Analyse FASTA

Valid publication: Kelly DP, Wood AP. Reclassification of some species of Thiobacillus to the newly designated genera Acidithiobacillus gen. nov., Halothiobacillus gen. nov. and Thermithiobacillus gen. nov. Int J Syst Evol Microbiol 2000; 50:511-516. 🇬🇧

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 50, part 2 of the IJSEM. Int J Syst Evol Microbiol 2000; 50:951-953.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Thiobacillus concretivorus Parker 1945 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Thiobacillus thiooxidans Waksman and Joffe 1922 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    Acidithiobacillus concretivorus (Parker 1945) Boden and Hutt 2021	heterotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Acidithiobacillus Kelly and Wood 2000. Publication: Kelly DP, Wood AP. Reclassification of some species of Thiobacillus to the newly designated genera Acidithiobacillus gen. nov., Halothiobacillus gen. nov. and Thermithiobacillus gen. nov. Int J Syst Evol Microbiol 2000; 50:511-516. 🇬🇧
  • ⏰ According to Kelly and Wood (2000), this species is an earlier heterotypic synonym of Acidithiobacillus concretivorus (Parker 1945) Boden and Hutt 2021. Publication: Kelly DP, Wood AP. Reclassification of some species of Thiobacillus to the newly designated genera Acidithiobacillus gen. nov., Halothiobacillus gen. nov. and Thermithiobacillus gen. nov. Int J Syst Evol Microbiol 2000; 50:511-516. 🇬🇧
  • ⏰ According to Kelly and Wood (2000), this species is an earlier heterotypic synonym of Thiobacillus concretivorus Parker 1945 (Approved Lists 1980). Publication: Kelly DP, Wood AP. Reclassification of some species of Thiobacillus to the newly designated genera Acidithiobacillus gen. nov., Halothiobacillus gen. nov. and Thermithiobacillus gen. nov. Int J Syst Evol Microbiol 2000; 50:511-516. 🇬🇧
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — 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 215 times in PubMed until 2025-06-04.

Parent taxon: Acidithiobacillus Kelly and Wood 2000

Assigned by: Kelly DP, Wood AP. Reclassification of some species of Thiobacillus to the newly designated genera Acidithiobacillus gen. nov., Halothiobacillus gen. nov. and Thermithiobacillus gen. nov. Int J Syst Evol Microbiol 2000; 50:511-516. 🇬🇧

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Record number: 772588