Name: Thiobacillus rapidicrescens Katayama-Fujimura et al. 1983

Category: Species

Proposed as: sp. nov.

Etymology: ra.pi.di.cres’cens. L. masc. adj. rapidus, rapid; L. pres. part. crescens, growing; N.L. masc. part. adj. rapidicrescens, rapid growing

Pronunciation, gender: ra-pi-di-KRES-kens, masculine

Type strain: A2; ATCC 25364; CIP 107117; DSM 582; IAM 12814; IFO 14567; JCM 20754; NBRC 14567; NCCB 80062; NCCB 81078; THI O41; VKM B-2163

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: Y16931 Analyse FASTA

Valid publication: Katayama-Fujimura Y, Kawashima I, Tsuzaki N, Kuraishi H. Reidentification of Thiobacillus perometabolis ATCC 27793 and Thiobacillus sp. strain A2 with reference to a new species, Thiobacillus rapidicrescens sp. nov. Int. J. Syst. Bacteriol. 1983; 33:532-538.

Nomenclatural status: validly published under the ICNP, illegitimate name

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

Correct name: Paracoccus versutus (Harrison 1983) Katayama et al. 1996

Risk group: 1

• Synonyms:

  • Name	Kind
    Thiobacillus versutus Harrison 1983	homotypic synonym, validly published under the ICNP
    Paracoccus versutus (Harrison 1983) Katayama et al. 1996	homotypic synonym, validly published under the ICNP

• Notes:
  • 😷 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 0 times in PubMed until 2025-06-04.
  • 🪓 Organisms assigned to this species have previously been classified as Thiobacillus perometabolis London and Rittenberg 1967 (Approved Lists 1980). Publication: London J, Rittenberg SC. Thiobacillus perometabolis nov. sp., a non-autotrophic thiobacillus. Arch Mikrobiol 1967; 59:218-225. Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.
  • 🙅 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 risk group of other species in the genus.
  • 🧍 Later homotypic synonym of Thiobacillus versutus Harrison 1983. Publication: Harrison Jr. AP. Genomic and physiological comparisons between heterotrophic thiobacilli and Acidiphilium cryptum, Thiobacillus versutus sp. nov., and Thiobacillus acidophilus nom. rev. Int. J. Syst. Bacteriol. 1983; 33:211-217.

Parent taxon: Thiobacillus Beijerinck 1904 (Approved Lists 1980)

Assigned by: Katayama-Fujimura Y, Kawashima I, Tsuzaki N, Kuraishi H. Reidentification of Thiobacillus perometabolis ATCC 27793 and Thiobacillus sp. strain A2 with reference to a new species, Thiobacillus rapidicrescens sp. nov. Int. J. Syst. Bacteriol. 1983; 33:532-538.

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Record number: 785081