Name: Undibacterium pigrum Kämpfer et al. 2007

Category: Species

Proposed as: sp. nov.

Etymology: pi’grum. L. neut. adj. pigrum, inactive

Pronunciation (Latin), gender: un-di-bak-TE-ri-um PI-grum, neuter

Type strain: CCUG 49009; CIP 109318; DSM 19792

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AM397630 Analyse FASTA

Valid 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. 🇩🇪

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 57, part 7 of the IJSEM. Int J Syst Evol Microbiol 2007; 57:2189-2190.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • Eder et al. 2011 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. 🇺🇸 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.

• Notes:
  • 🥇 Nomenclatural type of the genus Undibacterium Kämpfer et al. 2007. 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. 🇩🇪
  • 😷 The risk group for Germany has been imported on 2026-08-13. 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 2 times in PubMed until 2026-06-11.

Parent taxon: Undibacterium Kämpfer et al. 2007

Assigned by: 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. 🇩🇪

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Record number: 786508