Name: Agrobacterium atlanticum Rüger and Höfle 1992

Category: Species

Proposed as: sp. nov.

Etymology: a.tlan’ti.cum. L. neut. adj. atlanticum, of or pertaining to the Atlantic Ocean

Pronunciation, gender: a-TLAN-ti-kum, neuter

Type strain: 1480; ATCC 700000; CIP 105975; DSM 5823; IAM 14463; IFO 15792; JCM 21234; NBRC 15792

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB255399 Analyse FASTA

Valid publication: Ruger HJ, Hofle MG. Marine star-shaped-aggregate-forming bacteria: Agrobacterium atlanticum sp. nov.; Agrobacterium meteori sp. nov.; Agrobacterium ferrugineum sp. nov., nom. rev.; Agrobacterium gelatinovorum sp. nov., nom. rev.; and Agrobacterium stellulatum sp. nov., nom. rev. Int J Syst Bacteriol 1992; 42:133-143.

IJSEM list: 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.

Nomenclatural status: validly published under the ICNP

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

Correct name: Ruegeria atlantica (Rüger and Höfle 1992) Uchino et al. 1999

Risk group: 1

• Synonyms:

  • Name	Kind
    Ruegeria atlantica (Rüger and Höfle 1992) Uchino et al. 1999	homotypic synonym, validly published under the ICNP

• Notes:
  • ⏰ According to Hördt et al. (2020), this species is not an earlier heterotypic synonym of Ruegeria meteori (Rüger and Höfle 1992) Hördt et al. 2020. Publication: 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.
  • ⏰ According to Hördt et al. (2020), this species is not an earlier heterotypic synonym of Agrobacterium meteori Rüger and Höfle 1992. Publication: 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.
  • ⏰ According to Uchino et al. (1998), this species is an earlier heterotypic synonym of Ruegeria meteori (Rüger and Höfle 1992) Hördt et al. 2020. Publication: Uchino Y, Hirata A, Yokota A, Sugiyama J. Reclassification of marine Agrobacterium species: Proposals of Stappia stellulata gen. nov., comb. nov., Stappia aggregata sp. nov., nom. rev., Ruegeria atlantica gen. nov., comb. nov., Ruegeria gelatinovora comb. nov., Ruegeria algicola comb. nov., and Ahrensia kieliense gen. nov., sp. nov., nom. rev. J Gen Appl Microbiol 1998; 44:201-210.
  • ⏰ According to Uchino et al. (1998), this species is an earlier heterotypic synonym of Agrobacterium meteori Rüger and Höfle 1992. Publication: Uchino Y, Hirata A, Yokota A, Sugiyama J. Reclassification of marine Agrobacterium species: Proposals of Stappia stellulata gen. nov., comb. nov., Stappia aggregata sp. nov., nom. rev., Ruegeria atlantica gen. nov., comb. nov., Ruegeria gelatinovora comb. nov., Ruegeria algicola comb. nov., and Ahrensia kieliense gen. nov., sp. nov., nom. rev. J Gen Appl Microbiol 1998; 44:201-210.
  • 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Garrity GM. Validation list no. 194. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2020; 70:4043-4049.
  • ❗ Agrobacterium atlanticum 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 Agrobacterium.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 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 2025-06-04.
  • 🙅 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 risk group of other species in the genus.

Parent taxon: Agrobacterium Conn 1942 (Approved Lists 1980)

Assigned by: Ruger HJ, Hofle MG. Marine star-shaped-aggregate-forming bacteria: Agrobacterium atlanticum sp. nov.; Agrobacterium meteori sp. nov.; Agrobacterium ferrugineum sp. nov., nom. rev.; Agrobacterium gelatinovorum sp. nov., nom. rev.; and Agrobacterium stellulatum sp. nov., nom. rev. Int J Syst Bacteriol 1992; 42:133-143.

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Record number: 772951