Name: Methanocella arvoryzae Sakai et al. 2010

Category: Species

Proposed as: sp. nov.

Etymology: arv.o.ry’zae. L. neut. n. arvum, an arable field, cultivated land; L. fem. n. oryza, rice; N.L. gen. fem. n. arvoryzae, of a rice paddy field

Pronunciation (Latin), gender: me-t^ha-no-KEL-la arw-o-RY-za͡e, feminine

Type strain: DSM 22066; MRE50; NBRC 105507

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AM114193 Analyse FASTA

Valid publication: Sakai S, Conrad R, Liesack W, Imachi H. Methanocella arvoryzae sp. nov., a hydrogenotrophic methanogen isolated from rice field soil. Int J Syst Evol Microbiol 2010; 60:2918-2923. 🇯🇵

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 60, part 12 of the IJSEM. Int J Syst Evol Microbiol 2011; 61:477-478.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is -0.01653 (N = 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 2 times in PubMed until 2026-06-11.

Parent taxon: Methanocella Sakai et al. 2008

Assigned by: Sakai S, Conrad R, Liesack W, Imachi H. Methanocella arvoryzae sp. nov., a hydrogenotrophic methanogen isolated from rice field soil. Int J Syst Evol Microbiol 2010; 60:2918-2923. 🇯🇵

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Record number: 788945