Species ***Microbacterium* *aurantiacum***

Classification:

Bacteria Bacillati Actinomycetota Actinomycetes Micrococcales Microbacteriaceae Microbacterium Microbacterium aurantiacum

Name: Microbacterium aurantiacum Takeuchi and Hatano 1998

Category, proposed as: species, sp. nov.

Etymology: au.ran.ti’a.cum. N.L. neut. adj. aurantium, specific name of the orange; L. neut. suff. -acum, adjectival suffix used with the sense of belonging to; N.L. neut. adj. aurantiacum, orange-colored

Pronunciation (Latin), gender: mi-kro-bak-TE-ri-um a͡u-ran-TI-a-kum, neuter

Type strain: ATCC 49090; CIP 105730; DSM 12506; IF0 15234; IFO 15234; JCM 9177; KCTC 19336; NBRC 15234; NCDO 2288; NCFB 2288; VKM Ac-2075

Conduct genome-based taxonomy at

16S rRNA gene: AB004726 Analyse FASTA

Valid publication: Takeuchi M, Hatano K. Proposal of six new species in the genus Microbacterium and transfer of Flavobacterium marinotypicum ZoBell and Upham to the genus Microbacterium as Microbacterium maritypicum comb. nov. Int J Syst Bacteriol 1998; 48:973-982. 🇯🇵

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 48, part 3 of the IJSB. Int J Syst Bacteriol 1998; 48:1085-1087.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 2

Synonyms:

Name	Kind
Microbacterium kitamiense Matsuyama et al. 1999	heterotypic synonym, validly published under the ICNP
Microbacterium chocolatum Takeuchi and Hatano 1998	heterotypic synonym, validly published under the ICNP

Emendations:
- Janthanom et al. 2025 Janthanom R, Quadri SR, Quach NT, Narsing Rao MP, Thamchaipenet A. Reclassification of Microbacterium chocolatum Takeuchi and Hatano 1998 as a Later Heterotypic Synonym of Microbacterium aurantiacum Takeuchi and Hatano 1998. Curr Microbiol 2025; 82:304. 🇨🇳 Oren A, Göker M. List of changes in taxonomic opinion no. 43. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2026; 76:6976.
  Notes:
  - 🫂 Emendation accompanied by a proposal regarding the synonymy of the species.

Notes:
- ⏰ According to Janthanom et al. (2025), this species is an earlier heterotypic synonym of Microbacterium chocolatum Takeuchi and Hatano 1998. Publication: Janthanom R, Quadri SR, Quach NT, Narsing Rao MP, Thamchaipenet A. Reclassification of Microbacterium chocolatum Takeuchi and Hatano 1998 as a Later Heterotypic Synonym of Microbacterium aurantiacum Takeuchi and Hatano 1998. Curr Microbiol 2025; 82:304. 🇨🇳
- ⏰ According to Lee et al. (2023), this species is an earlier heterotypic synonym of Microbacterium kitamiense Matsuyama et al. 1999. Publication: Lee SD, Yang HL, Kim IS. Four new Microbacterium species isolated from seaweeds and reclassification of five Microbacterium species with a proposal of Paramicrobacterium gen. nov. under a genome-based framework of the genus Microbacterium. Front Microbiol 2023; 14:1299950. 🇰🇷
- 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Göker M. List of changes in taxonomic opinion no. 40. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2024; 74:6482.
- 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Göker M. List of changes in taxonomic opinion no. 43. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2026; 76:6976.
- 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — 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 5 times in PubMed until 2026-06-11.
- 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the species itself.
- 🧍 The strain NCFB 2288, cited in the table 1 of the paper by Takeuchi and Hatano 1998, does not appear in the UKNCC Strain databases or in The complete list of NCIMB bacterial strains. Publication: Euzeby JP. List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet. Int J Syst Bacteriol 1997; 47:590-592. 🇫🇷

Parent taxon: Microbacterium Orla-Jensen 1919 (Approved Lists 1980)

Assigned by: Takeuchi M, Hatano K. Proposal of six new species in the genus Microbacterium and transfer of Flavobacterium marinotypicum ZoBell and Upham to the genus Microbacterium as Microbacterium maritypicum comb. nov. Int J Syst Bacteriol 1998; 48:973-982. 🇯🇵

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.778029Link copied to clipboard

Record number: 778029

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Species ***Microbacterium* *aurantiacum***