Name: Curtobacterium albidum (Komagata and Iizuka 1964) Yamada and Komagata 1972 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: Brevibacterium albidum Komagata and Iizuka 1964 (Approved Lists 1980)

Etymology: al’bi.dum. L. neut. adj. albidum, whitish, white

Pronunciation, gender: AL-bi-dum, neuter

Type strain: ATCC 15831; CIP 102693; DSM 20512; HAMBI 2039; IFO 15078; JCM 1344; NBIMCC 8955; NBRC 15078; VKM B-1206

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB046363 Analyse FASTA

Effective publication: Yamada K, Komagata K. Taxonomic studies on coryneform bacteria. V. Classification of coryneform bacteria. Journal of General and Applied Microbiology 1972; 18:417-431.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Curtobacterium citreum (Komagata and Iizuka 1964) Yamada and Komagata 1972 (Approved Lists 1980)

Risk group: 1

• Synonyms:

  • Name	Kind
    Curtobacterium citreum (Komagata and Iizuka 1964) Yamada and Komagata 1972 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Brevibacterium albidum Komagata and Iizuka 1964 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    Brevibacterium citreum Komagata and Iizuka 1964 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP

• Notes:
  • ⏲ According to Osdaghi et al. (2024), this species is a later heterotypic synonym of Brevibacterium citreum Komagata and Iizuka 1964 (Approved Lists 1980). Publication: Osdaghi E, Taghavi SM, Hamidizade M, Kariminejhad M, Fazliarab A, Hajian Maleki H, Baeyen S, Taghouti G, Jacques MA, Van Vaerenbergh J, et al. Multiphasic investigations imply transfer of orange-/red-pigmented strains of the bean pathogen Curtobacterium flaccumfaciens pv. flaccumfaciens to a new species as C. aurantiacum sp. nov., elevation of the poinsettia pathogen C. flaccumfaciens pv. poinsettiae to the species level as C. Poinsettiae sp. nov., and synonymy of C. albidum with C. citreum. Syst Appl Microbiol 2024; 47:126489. 🇮🇷
  • ⏲ According to Osdaghi et al. (2024), this species is a later heterotypic synonym of Curtobacterium citreum (Komagata and Iizuka 1964) Yamada and Komagata 1972 (Approved Lists 1980). Publication: Osdaghi E, Taghavi SM, Hamidizade M, Kariminejhad M, Fazliarab A, Hajian Maleki H, Baeyen S, Taghouti G, Jacques MA, Van Vaerenbergh J, et al. Multiphasic investigations imply transfer of orange-/red-pigmented strains of the bean pathogen Curtobacterium flaccumfaciens pv. flaccumfaciens to a new species as C. aurantiacum sp. nov., elevation of the poinsettia pathogen C. flaccumfaciens pv. poinsettiae to the species level as C. Poinsettiae sp. nov., and synonymy of C. albidum with C. citreum. Syst Appl Microbiol 2024; 47:126489. 🇮🇷
  • 🏢 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. 41. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2025; 75:6561.
  • ❗ Curtobacterium albidum 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 Curtobacterium.
  • 🧬 The phylogenomic assignment score of this taxon is 0.28999 (N = 36).
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — 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.
  • 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus.

Parent taxon: Curtobacterium Yamada and Komagata 1972 (Approved Lists 1980)

Assigned by: Yamada K, Komagata K. Taxonomic studies on coryneform bacteria. V. Classification of coryneform bacteria. Journal of General and Applied Microbiology 1972; 18:417-431.

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Record number: 775324