Name: Undibacterium Kämpfer et al. 2007

Category: Genus

Proposed as: gen. nov.

Etymology: Un.di.bac.te’ri.um. L. fem. n. unda, water; N.L. neut. n. bacterium, rod; N.L. neut. n. Undibacterium, a rod of water

Gender, pronunciation: neuter (stem: Undibacteri-), un-di-bak-TE-ri-um

Type species: Undibacterium pigrum Kämpfer et al. 2007

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: 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

• Synonyms:

  • Name	Kind
    "Cognatundibacterium" Lu et al. 2025	heterotypic synonym, not validly published
    "Pseudundibacterium" Lu et al. 2025	heterotypic synonym, not validly published
    "Paraundibacterium" Ma et al. 2023	heterotypic synonym, not validly published
    "Affinundibacterium" Ma et al. 2023	heterotypic synonym, not validly published
    "Neoundibacterium" Ma et al. 2023	heterotypic synonym, not validly published

• 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:
    • ⊕ Emendation accompanied by the proposal of 2 new species in the genus.

• Notes:
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Sheu et al. (2014). Editors in search of reviewers are advised to consider additional criteria such as whether a taxon is covered by one of the ICSP subcommittees.
  • 🧬 The phylogenomic assignment score of this taxon is 0.16045 (N = 1).
  • 🎰 The BRCs most frequently used for deposits in this group are: KCTC: 12; GDMCC: 11; KACC: 8; DSM: 6; LMG: 4; CCUG: 3; CIP: 3; NBRC: 3; BCRC: 3; CGMCC: 2.

Subdivision:

Number of child taxa with a validly published and correct name: 26
Number of child taxa with a validly published name, including synonyms: 26
Total number of child taxa: 26

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Undibacterium amnicola Chen et al. 2017	validly published under the ICNP	correct name
    Undibacterium aquatile Du et al. 2015	validly published under the ICNP	correct name
    Undibacterium arcticum Li et al. 2016	validly published under the ICNP	correct name
    Undibacterium baiyunense Lu et al. 2021	validly published under the ICNP	correct name
    Undibacterium crateris Phurbu et al. 2021	validly published under the ICNP	correct name
    Undibacterium curvum Lu et al. 2021	validly published under the ICNP	correct name
    Undibacterium cyanobacteriorum Le et al. 2025	validly published under the ICNP	correct name
    Undibacterium danionis Kämpfer et al. 2016	validly published under the ICNP	correct name
    Undibacterium fentianense Lu et al. 2021	validly published under the ICNP	correct name
    Undibacterium flavidum Lu et al. 2021	validly published under the ICNP	correct name
    Undibacterium griseum Lu et al. 2021	validly published under the ICNP	correct name
    Undibacterium hunanense Lu et al. 2021	validly published under the ICNP	correct name
    Undibacterium jejuense Kim et al. 2014	validly published under the ICNP	correct name
    Undibacterium luofuense Lu et al. 2021	validly published under the ICNP	correct name
    Undibacterium macrobrachii Sheu et al. 2014	validly published under the ICNP	correct name
    Undibacterium nitidum Lu et al. 2021	validly published under the ICNP	correct name
    Undibacterium oligocarboniphilum Eder et al. 2011	validly published under the ICNP	correct name
    Undibacterium parvum Eder et al. 2011	validly published under the ICNP	correct name
    Undibacterium pigrum Kämpfer et al. 2007	validly published under the ICNP	correct name
    Undibacterium piscinae Lee et al. 2019	validly published under the ICNP	correct name
    Undibacterium rivi Lu et al. 2021	validly published under the ICNP	correct name
    Undibacterium rugosum Lu et al. 2021	validly published under the ICNP	correct name
    Undibacterium seohonense Kim et al. 2014	validly published under the ICNP	correct name
    Undibacterium squillarum Sheu et al. 2014	validly published under the ICNP	correct name
    Undibacterium terreum Liu et al. 2013	validly published under the ICNP	correct name
    Undibacterium umbellatum Lu et al. 2021	validly published under the ICNP	correct name

Parent taxon: Oxalobacteraceae Garrity et al. 2006

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: 517614