Name: Undibacterium parvum Eder et al. 2011

Category: Species

Proposed as: sp. nov.

Etymology: par’vum. L. neut. adj. parvum, small

Pronunciation (Latin), gender: … PAR-wum, neuter

Type strain: CCUG 49012; CIP 109317; DSM 23061

Conduct genome-based taxonomy at

16S rRNA gene: AM397629 Analyse FASTA

Valid publication: Eder W, Wanner G, Ludwig W, Busse HJ, Ziemke-Kageler F, Lang E. Description of Undibacterium oligocarboniphilum sp. nov., isolated from purified water, and Undibacterium pigrum strain CCUG 49012 as the type strain of Undibacterium parvum sp. nov., and emended descriptions of the genus Undibacterium and the species Undibacterium pigrum. Int J Syst Evol Microbiol 2011; 61:384-391. 🇺🇸

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 61, part 2 of the IJSEM. Int J Syst Evol Microbiol 2011; 61:1014-1015.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Neoundibacterium parvum (Eder et al. 2011) Ma et al. 2026

Risk group: 1

• Synonyms:

  • Name	Kind
    Neoundibacterium parvum (Eder et al. 2011) Ma et al. 2026	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Undibacterium parvum 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 Undibacterium.
  • 😷 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.
  • 🧍 The type strain CCUG 49012 (= CIP 108976 = DSM 23061) was previouly described by Kämpfer et al. 2007 as a second genomovar of Undibacterium pigrum because of the lack of differentiating characters. Publication: Kampfer P, Rossello-Mora R, Hermansson M, Persson F, Huber B, Falsen E, Busse HJ. Undibacterium pigrum gen. nov., sp. nov., isolated from drinking water. Int J Syst Evol Microbiol 2007; 57:1510-1515. 🇩🇪

Parent taxon: Undibacterium Kämpfer et al. 2007

Assigned by: Eder W, Wanner G, Ludwig W, Busse HJ, Ziemke-Kageler F, Lang E. Description of Undibacterium oligocarboniphilum sp. nov., isolated from purified water, and Undibacterium pigrum strain CCUG 49012 as the type strain of Undibacterium parvum sp. nov., and emended descriptions of the genus Undibacterium and the species Undibacterium pigrum. Int J Syst Evol Microbiol 2011; 61:384-391. 🇺🇸

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Record number: 786509