Name: Agrobacterium radiobacter (Beijerinck and van Delden 1902) Conn 1942 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: "Bacillus radiobacter" Beijerinck and van Delden 1902

Etymology: ra.di.o.bac.ter. L. masc. n. radius, a beam or ray; L. v. radio, pertaining to radiation; N.L. masc. n. bacter, a rod, staff; N.L. masc. n. radiobacter, ray rod (nominative in apposition)

Gender: neuter

Type strain: ATCC 19358; CIP 104325; DSM 30147; HAMBI 1814; IAM 12048; ICMP 5785; IFO 13532; JCM 20371; LMG 140; NBRC 13532; NCCB 27005; NCIB 9042; NCIMB 9042; NCPPB 3001

Conduct genome-based taxonomy at

16S rRNA gene: AB247615 Analyse FASTA

Effective publication: Conn HJ. Validity of the Genus Alcaligenes. J Bacteriol 1942; 44:353-360.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Synonyms:

  • Name	Kind
    "Bacillus radiobacter" Beijerinck and van Delden 1902	homotypic synonym, not validly published, basonym of name in Approved Lists
    Beijerinckia fluminensis Döbereiner and Ruschel 1958 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Rhizobium radiobacter (Beijerinck and van Delden 1902) Young et al. 2001	homotypic synonym, validly published under the ICNP

• Emendations:
  • Sawada et al. 1993 Sawada H, Ieki H, Oyaizu H, Matsumoto S. Proposal for rejection of Agrobacterium tumefaciens and revised descriptions for the genus Agrobacterium and for Agrobacterium radiobacter and Agrobacterium rhizogenes. Int J Syst Bacteriol 1993; 43:694-702.
    Notes:
    • 🫂 Emendation accompanied by a proposal regarding the synonymy of the species.
    • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Contrasting the term "chemotaxonomic" with "phenotypic" is not recommended. Using the term "phylogenetic data" (or equivalent) for sequence data is not advocated. See the LPSN phylogeny page for details.
    • 🧍 This emendation was not found in the expected IJSEM notification list.
  • Zhang et al. 2014 Zhang L, Li X, Zhang F, Wang G. Genomic analysis of Agrobacterium radiobacter DSM 30147^T and emended description of A. radiobacter (Beijerinck and van Delden 1902) Conn 1942 (Approved Lists 1980) emend. Sawada et al. 1993. Stand Genomic Sci 2014; 9:574-584. Oren A, Garrity GM. List of changes in taxonomic opinion no. 21. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2015; 65:7-10.
  • Hördt et al. 2020 Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.

• Notes:
  • ⏰ According to Oggerin et al. (2009), this species is an earlier heterotypic synonym of Beijerinckia fluminensis Döbereiner and Ruschel 1958 (Approved Lists 1980). Publication: Oggerin M, Arahal DR, Rubio V, Marin I. Identification of Beijerinckia fluminensis strains CIP 106281T and UQM 1685T as Rhizobium radiobacter strains, and proposal of Beijerinckia doebereinerae sp. nov. to accommodate Beijerinckia fluminensis LMG 2819. Int J Syst Evol Microbiol 2009; 59:2323-2328.
  • ⏰ According to Sawada et al. (1993), this species is an earlier heterotypic synonym of "Bacterium tumefaciens" Smith and Townsend 1907. Publication: Sawada H, Ieki H, Oyaizu H, Matsumoto S. Proposal for rejection of Agrobacterium tumefaciens and revised descriptions for the genus Agrobacterium and for Agrobacterium radiobacter and Agrobacterium rhizogenes. Int J Syst Bacteriol 1993; 43:694-702.
  • ⏰ According to Sawada et al. (1993), this species is an earlier heterotypic synonym of Agrobacterium tumefaciens (Smith and Townsend 1907) Conn 1942 (Approved Lists 1980). Publication: Sawada H, Ieki H, Oyaizu H, Matsumoto S. Proposal for rejection of Agrobacterium tumefaciens and revised descriptions for the genus Agrobacterium and for Agrobacterium radiobacter and Agrobacterium rhizogenes. Int J Syst Bacteriol 1993; 43:694-702.
  • ⏰ According to Velazqüz et al. (2020), this species is not an earlier heterotypic synonym of "Bacterium tumefaciens" Smith and Townsend 1907. Publication: Velazquez E, Flores-Felix JD, Sanchez-Juanes F, Igual JM, Peix A. Strain ATCC 4720^T is the authentic type strain of Agrobacterium tumefaciens, which is not a later heterotypic synonym of Agrobacterium radiobacter. Int J Syst Evol Microbiol 2020; 70:5172-5176.
  • ⏰ According to Velazqüz et al. (2020), this species is not an earlier heterotypic synonym of Agrobacterium tumefaciens (Smith and Townsend 1907) Conn 1942 (Approved Lists 1980). Publication: Velazquez E, Flores-Felix JD, Sanchez-Juanes F, Igual JM, Peix A. Strain ATCC 4720^T is the authentic type strain of Agrobacterium tumefaciens, which is not a later heterotypic synonym of Agrobacterium radiobacter. Int J Syst Evol Microbiol 2020; 70:5172-5176.
  • 🧬 The phylogenomic assignment score of this taxon is 0.19124 (N = 13).
  • 😷 The risk group for Belgium has been imported on 2024-02-01. The full classification is: risk group = 1, note = "plant pathogen - biological class of risk plant: 2". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2, note = "default: 2 PIIC PP; non-pathogenic laboratory strains: 1 PIIC PP". — 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 326 times in PubMed until 2024-03-28.
  • 🧍 Plant pathogenic according to Bull et al. (2007). Publication: Bull CT, De Boer SH, Denny TP, Firrao G, Fischer Le Saux M, Saddler GS, Scortichini M, Stead DE, Takikawa Y. Comprehensive list of names of plant pathogenic bacteria, 1980-2007. Journal of Plant Pathology 2010; 92:551-592.
  • 🧍 Young et al. (2006) propose in a Request for an Opinion that Agrobacterium radiobacter has priority as the earlier heterotypic (subjective) synonym when it is united with Agrobacterium tumefaciens. The Judicial Commission affirmed the priority of Agrobacterium radiobacter (Opinion 94, Judicial Commission of the International Committee on Systematics of Prokaryotes, IJSEM 64:3590-3592). Publication: Judicial Commission. Judicial Opinion No. 94. Int J Syst Evol Microbiol 2014; 64:3590-3592.

Parent taxon: Agrobacterium Conn 1942 (Approved Lists 1980)

Assigned by: Conn HJ. Validity of the Genus Alcaligenes. J Bacteriol 1942; 44:353-360.

Linking: To permanently link to this page, use https://lpsn.dsmz.de/species/agrobacterium-radiobacterCopy to clipboardLink copied to clipboard

Record number: 772957