Name: Zoogloea oryzae Xie and Yokota 2006

Category: Species

Proposed as: sp. nov.

Etymology: o.ry’zae. L. gen. fem. n. oryzae, of rice, from the rice paddy fields from which the strains were isolated

Gender: feminine

Type strain: A-7; CCTCC AB 2052005; IAM 15218; JCM 21672; NBRC 102407

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB201043 Analyse FASTA

Valid publication: Xie CH, Yokota A. Zoogloea oryzae sp. nov., a nitrogen-fixing bacterium isolated from rice paddy soil, and reclassification of the strain ATCC 19623 as Crabtreella saccharophila gen. nov., sp. nov. Int J Syst Evol Microbiol 2006; 56:619-624.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 56, part 3 of the IJSEM. Int J Syst Evol Microbiol 2006; 56:1181-1182.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • Dahal et al. 2020 Dahal RH, Chaudhary DK, Kim DU, Kim J. Zoogloea dura sp. nov., a N2-fixing bacterium isolated from forest soil and emendation of the genus Zoogloea and the species Zoogloea oryzae and Zoogloea ramigera. Int J Syst Evol Microbiol 2020; 70:5312-5318. Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 70, part 10 of the IJSEM. Int J Syst Evol Microbiol 2021; 71:4565.

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.13527 (N = 6).
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 4 times in PubMed until 2024-03-27.

Parent taxon: Zoogloea Itzigsohn 1868 (Approved Lists 1980)

Assigned by: Xie CH, Yokota A. Zoogloea oryzae sp. nov., a nitrogen-fixing bacterium isolated from rice paddy soil, and reclassification of the strain ATCC 19623 as Crabtreella saccharophila gen. nov., sp. nov. Int J Syst Evol Microbiol 2006; 56:619-624.

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Record number: 785235