Name: Azoarcus rhizosphaerae Lin et al. 2020

Category: Species

Proposed as: sp. nov.

Etymology: rhi.zo.sphae’rae. Gr. fem. n. rhiza, root; Gr. fem. n. sphaîra (gen. sphaîras), ball, sphere; N.L. gen. fem. n. rhizosphaerae, from the rhizosphere

Pronunciation (Latin), gender: a-zo-AR-kus r^hi-zo-SP^HA͡E-ra͡e, masculine

Type strain: BCRC 81060; CC-YHH848; JCM 32002

Conduct genome-based taxonomy at

16S rRNA gene: KY860534 Analyse FASTA

Effective publication: Lin SY, Hameed A, Tsai CF, Huang GH, Hsu YH, Young CC. Description of Azoarcus nasutitermitis sp. nov. and Azoarcus rhizosphaerae sp. nov., two nitrogen-fixing species isolated from termite nest and rhizosphere of Ficus religiosa. Antonie Van Leeuwenhoek 2020; 113:933-946. 🇹🇼

IJSEM list: Oren A, Garrity GM. Validation list no. 196. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2020; 70:5596-5601.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Pseudothauera rhizosphaerae (Lin et al. 2020) Huang et al. 2022

Risk group: 1

• Synonyms:

  • Name	Kind
    Pseudothauera rhizosphaerae (Lin et al. 2020) Huang et al. 2022	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Azoarcus rhizosphaerae 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 Azoarcus.
  • 😷 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 1 time in PubMed until 2026-06-11.

Parent taxon: Azoarcus Reinhold-Hurek et al. 1993

Assigned by: Lin SY, Hameed A, Tsai CF, Huang GH, Hsu YH, Young CC. Description of Azoarcus nasutitermitis sp. nov. and Azoarcus rhizosphaerae sp. nov., two nitrogen-fixing species isolated from termite nest and rhizosphere of Ficus religiosa. Antonie Van Leeuwenhoek 2020; 113:933-946. 🇹🇼

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.7465Copy to clipboardLink copied to clipboard

Record number: 7465