Species Acidovorax oryzae

Name: Acidovorax oryzae Schaad et al. 2009

Category, proposed as: species, sp. nov.

Etymology: o.ry’zae. L. gen. fem. n. oryzae, of rice, of Oryza (a genus of rice plants)

Pronunciation (Latin), gender: a-ki-DO-wo-rax o-RY-za͡e, masculine

Type strain: ATCC 19882; FC-143; ICMP 3960; ICPB 30003; NCPPB 1392

Conduct genome-based taxonomy at

16S rRNA gene: DQ360414 Analyse FASTA

Effective publication: Schaad NW, Postnikova E, Sechler A, Claflin LE, Vidaver AK, Jones JB, Agarkova I, Ignatov A, Dickstein E, Ramundo BA. Reclassification of subspecies of Acidovorax avenae as A. Avenae (Manns 1905) emend., A. cattleyae (Pavarino, 1911) comb. nov., A. citrulli Schaad et al., 1978) comb. nov., and proposal of A. oryzae sp. nov. Syst Appl Microbiol 2008; 31:434-446. 🇺🇸

IJSEM list: Euzeby JP. Validation list no. 127. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2009; 59:923-925.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 1

• Synonyms:

  • Name	Kind
    Paracidovorax oryzae (Schaad et al. 2009) Du et al. 2023	homotypic synonym, validly published under the ICNP

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is -0.04552 (N = 31).
  • 😷 The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 1, note = "p". — 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 16 times in PubMed until 2026-06-11.
  • 🪓 Organisms assigned to this species have previously been classified as Acidovorax avenae (Manns 1909) Willems et al. 1992. Publication: Willems A, Goor M, Thielemans S, Gillis M, Kersters K, De Ley J. Transfer of several phytopathogenic Pseudomonas species to Acidovorax as Acidovorax avenae subsp. avenae subsp. nov., comb. nov., Acidovorax avenae subsp. citrulli, Acidovorax avenae subsp. cattleyae, and Acidovorax konjaci. Int J Syst Bacteriol 1992; 42:107-119. 🇧🇪 Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 42, part 1 of the IJSB. Int J Syst Bacteriol 1992; 42:328-329.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded pathogenicity of the species itself.
  • 🧍 According to Bartlett et al. (2022), this species is a putative human pathogen. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology (Reading) 2022; 168:0. 🇬🇧
  • 🧍 Plant pathogenic according to Bull et al. (2012). Publication: Bull CT, De Boer SH, Denny TP, Firrao G, Fischer Le Saux M, Saddler GS, Scortichini M, Stead DE, Takikawa Y. List of new names of plant pathogenic bacteria (2008-2010). Journal of Plant Pathology 2012; 94:21-27. 🇺🇸
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Mukherjee S, Seshadri R, Varghese NJ, Eloe-Fadrosh EA, Meier-Kolthoff JP, Goker M, Coates RC, Hadjithomas M, Pavlopoulos GA, Paez-Espino D, et al. 1,003 reference genomes of bacterial and archaeal isolates expand coverage of the tree of life. Nat Biotechnol 2017; 35:676-683. 🇺🇸

Parent taxon: Acidovorax Willems et al. 1990

Assigned by: Schaad NW, Postnikova E, Sechler A, Claflin LE, Vidaver AK, Jones JB, Agarkova I, Ignatov A, Dickstein E, Ramundo BA. Reclassification of subspecies of Acidovorax avenae as A. Avenae (Manns 1905) emend., A. cattleyae (Pavarino, 1911) comb. nov., A. citrulli Schaad et al., 1978) comb. nov., and proposal of A. oryzae sp. nov. Syst Appl Microbiol 2008; 31:434-446. 🇺🇸

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Record number: 787826