Name: Micrococcus yunnanensis Zhao et al. 2009

Category: Species

Proposed as: sp. nov.

Etymology: yun.na.nen’sis. N.L. masc. adj. yunnanensis, of or belonging to Yunnan, a province of south-west China

Pronunciation (Latin), gender: … yun-na-NEN-sis, masculine

Type strain: CCTCC AA 208060; DSM 21948; DSM 24531; JCM 16547; YIM 65004

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: FJ214355 Analyse FASTA

Valid publication: Zhao GZ, Li J, Qin S, Zhang YQ, Zhu WY, Jiang CL, Xu LH, Li WJ. Micrococcus yunnanensis sp. nov., a novel actinobacterium isolated from surface-sterilized Polyspora axillaris roots. Int J Syst Evol Microbiol 2009; 59:2383-2387. 🇨🇳

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 59, part 10 of the IJSEM. Int J Syst Evol Microbiol 2010; 60:3-4.

Nomenclatural status: validly published under the ICNP

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

Correct name: Micrococcus luteus (Schroeter 1872) Cohn 1872 (Approved Lists 1980)

Risk group: 1

• Synonyms:

  • Name	Kind
    "Bacteridium luteum" Schroeter 1872	heterotypic synonym, not validly published, basonym of name in Approved Lists
    Micrococcus aloeverae Prakash et al. 2014	heterotypic synonym, validly published under the ICNP
    Micrococcus luteus (Schroeter 1872) Cohn 1872 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP

• Notes:
  • ⏲ According to Huang et al. (2019), this species is a later heterotypic synonym of "Bacteridium luteum" Schroeter 1872. Publication: Huang CH, Wang CL, Liou JS, Lee AY, Blom J, Huang L, Watanabe K. Reclassification of Micrococcus aloeverae and Micrococcus yunnanensis as later heterotypic synonyms of Micrococcus luteus. Int J Syst Evol Microbiol 2019; 69:3512-3518. 🇯🇵
  • ⏲ According to Huang et al. (2019), this species is a later heterotypic synonym of Micrococcus luteus (Schroeter 1872) Cohn 1872 (Approved Lists 1980). Publication: Huang CH, Wang CL, Liou JS, Lee AY, Blom J, Huang L, Watanabe K. Reclassification of Micrococcus aloeverae and Micrococcus yunnanensis as later heterotypic synonyms of Micrococcus luteus. Int J Syst Evol Microbiol 2019; 69:3512-3518. 🇯🇵
  • ❗ Micrococcus yunnanensis 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 Micrococcus.
  • 😷 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 36 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 pathogenicity of other species in the genus.

Parent taxon: Micrococcus Cohn 1872 (Approved Lists 1980)

Assigned by: Zhao GZ, Li J, Qin S, Zhang YQ, Zhu WY, Jiang CL, Xu LH, Li WJ. Micrococcus yunnanensis sp. nov., a novel actinobacterium isolated from surface-sterilized Polyspora axillaris roots. Int J Syst Evol Microbiol 2009; 59:2383-2387. 🇨🇳

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Record number: 788132