Name: Ralstonia taiwanensis Chen et al. 2001

Category: Species

Proposed as: sp. nov.

Etymology: tai.wan.en’sis. N.L. fem. adj. taiwanensis, of Taiwan, where the root nodule strains were isolated

Gender: feminine

Type strain: CCUG 44338; CIP 107171; DSM 17343; LMG 19424; R1

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF300324 Analyse FASTA

Valid publication: Chen WM, Laevens S, Lee TM, Coenye T, De Vos P, Mergeay M, Vandamme P. Ralstonia taiwanensis sp. nov., isolated from root nodules of Mimosa species and sputum of a cystic fibrosis patient. Int J Syst Evol Microbiol 2001; 51:1729-1735.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 51, part 5 of the IJSEM. Int J Syst Evol Microbiol 2001; 51:1947-1948.

Nomenclatural status: validly published under the ICNP

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

Correct name: Cupriavidus taiwanensis (Chen et al. 2001) Vandamme and Coenye 2004

Risk group: 1

• Synonyms:

  • Name	Kind
    Cupriavidus taiwanensis (Chen et al. 2001) Vandamme and Coenye 2004	homotypic synonym, validly published under the ICNP
    Wautersia taiwanensis (Chen et al. 2001) Vaneechoutte et al. 2004	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Ralstonia taiwanensis 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 Ralstonia.
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1, note = "+". — 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 10 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 risk group of the genus.

Parent taxon: Ralstonia Yabuuchi et al. 1996

Assigned by: Chen WM, Laevens S, Lee TM, Coenye T, De Vos P, Mergeay M, Vandamme P. Ralstonia taiwanensis sp. nov., isolated from root nodules of Mimosa species and sputum of a cystic fibrosis patient. Int J Syst Evol Microbiol 2001; 51:1729-1735.

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Record number: 784757