Genus Ideonella

Name: Ideonella Malmqvist et al. 1994

Category, proposed as: genus, gen. nov.

Etymology: I.de.o.nel’la. N.L. fem. dim. n. Ideonella, derived from Ideon the research center where the bacterium was isolated and described

Gender, pronunciation (Latin): feminine (stem: Ideonell-), i-de-o-NEL-la

Type species: Ideonella dechloratans Malmqvist et al. 1994

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Effective publication: Malmqvist A, Welander T, Moore E, Ternstrom A, Molin G, Stenstrom I. Ideonella dechloratans, gen. nov., sp. nov., a new bacterium capable of growing anaerobically with chlorate as an electron acceptor. Syst. Appl. Microbiol. 1994; 17:58-64.

IJSEM list: Anonymous. Validation list no. 50. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1994; 44:595.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Emendations:
  • Noar and Buckley 2009 Noar JD, Buckley DH. Ideonella azotifigens sp. nov., an aerobic diazotroph of the Betaproteobacteria isolated from grass rhizosphere soil, and emended description of the genus Ideonella. Int J Syst Evol Microbiol 2009; 59:1941-1946. 🇺🇸 Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 59, part 8 of the IJSEM. Int J Syst Evol Microbiol 2009; 59:2649-2650.
    Notes:
    • ⊕ Emendation accompanied by the proposal of 1 new species in the genus.

• Notes:
  • 🧕 Brenner et al. (2005) assigned this genus to the family Comamonadaceae Willems et al. 1991. Publication: Garrity GM, Bell JA, Lilburn T. Class I. Alphaproteobacteria class. nov. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 2 (The Proteobacteria), part C (The Alpha-, Beta-, Delta-, and Epsilonproteobacteria), Springer, New York, 2005, p. 1. 🇺🇸
  • 🧕 Yilmaz et al. (2014) assigned this genus to the order Burkholderiales Garrity et al. 2006. Publication: Yilmaz P, Parfrey LW, Yarza P, Gerken J, Pruesse E, Quast C, Schweer T, Peplies J, Ludwig W, Glöckner FO. The SILVA and “all-species living tree project (LTP)” taxonomic frameworks. Nucleic Acids Research 2014; 42(D1):D643-D648. 🇩🇪
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Lu and Chen (2026), Baek et al. (2026). 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 BRCs most frequently used for deposits in this group are: GDMCC: 5; KCTC: 4; KACC: 2; CCUG: 2; TBRC: 2; JCM: 2; LMG: 2; BCRC: 2; CIP: 1; NBRC: 1.

Subdivision:

Number of child taxa with a validly published and correct name: 11
Number of child taxa with a validly published name, including synonyms: 12
Total number of child taxa: 13

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Ideonella alba Du et al. 2022	validly published under the ICNP	correct name
    Ideonella aquatica Du et al. 2022	validly published under the ICNP	correct name
    Ideonella azotifigens Noar and Buckley 2009	validly published under the ICNP	correct name
    Ideonella benzenivorans Bedics et al. 2023	validly published under the ICNP	correct name
    Ideonella dechloratans Malmqvist et al. 1994	validly published under the ICNP	correct name
    "Candidatus Ideonella esbjergensis" Seguel Suazo et al. 2025	not validly published	preferred name
    Ideonella flava Baek et al. 2026	validly published under the ICNP	correct name
    Ideonella lacteola Lu and Chen 2024	validly published under the ICNP	correct name
    Ideonella livida Chen et al. 2020	validly published under the ICNP	correct name
    Ideonella margarita Lu and Chen 2024	validly published under the ICNP	correct name
    Ideonella oryzae Jung et al. 2023	validly published under the ICNP	correct name
    Ideonella paludis Sheu et al. 2016	validly published under the ICNP	correct name
    Ideonella sakaiensis Tanasupawat et al. 2016	validly published under the ICNP	synonym

Parent taxon: Sphaerotilaceae Liu et al. 2023

Assigned by: Lu H, Chen L. Ideonella margarita sp. nov., Ideonella lacteola sp. nov., Pseudaquabacterium inlustre sp. nov. and Pseudaquabacterium rugosum sp. nov., isolated from streams in China and re-examining the taxonomic status of all the genera within the family Sphaerotilaceae. Int J Syst Evol Microbiol 2024; 74:6495. 🇨🇳

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Record number: 517254