Species Rhizobium pseudoryzae

Name: Rhizobium pseudoryzae Zhang et al. 2011

Category: Species

Proposed as: sp. nov.

Etymology: pseud.o.ry’zae. Gr. masc./fem. adj. pseudês, false; L. gen. fem. n. oryzae, of rice and also the name of a bacterial specific epithet; N.L. gen. fem. n. pseudoryzae, not the true (Rhizobium) oryzae

Pronunciation (Latin), gender: r^hi-ZO-bi-um pse͡ud-o-RY-za͡e, neuter

Type strain: ACCC 10380; DSM 19479; DSM 26483; J3-A127; KCTC 23294

Conduct genome-based taxonomy at

16S rRNA gene: DQ454123 Analyse FASTA

Valid publication: Zhang X, Sun L, Ma X, Sui XH, Jiang R. Rhizobium pseudoryzae sp. nov., isolated from the rhizosphere of rice. Int J Syst Evol Microbiol 2011; 61:2425-2429. 🇨🇳

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 61, part 10 of the IJSEM. Int J Syst Evol Microbiol 2012; 62:5-6.

Nomenclatural status: validly published under the ICNP

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

Correct name: Affinirhizobium pseudoryzae (Zhang et al. 2011) Ma et al. 2025

Risk group: 1

Synonyms:

Name	Kind
Allorhizobium pseudoryzae (Zhang et al. 2011) Mousavi et al. 2016	homotypic synonym, validly published under the ICNP
Affinirhizobium pseudoryzae (Zhang et al. 2011) Ma et al. 2025	homotypic synonym, validly published under the ICNP

Notes:
- ❗ Rhizobium pseudoryzae 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 Rhizobium.
- 😷 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 7 times in PubMed until 2026-06-11.
- 🙅 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: Rhizobium Frank 1889 (Approved Lists 1980)

Assigned by: Zhang X, Sun L, Ma X, Sui XH, Jiang R. Rhizobium pseudoryzae sp. nov., isolated from the rhizosphere of rice. Int J Syst Evol Microbiol 2011; 61:2425-2429. 🇨🇳

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.789512Link copied to clipboard

Record number: 789512

This LPSN page was printed on 2026-09-04 20:07:25

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Species Rhizobium pseudoryzae