Name: Stappia stellulata (Rüger and Höfle 1992 ex Stapp and Knösel 1954) Uchino et al. 1999

Category: Species

Proposed as: comb. nov.

Basonym: Agrobacterium stellulatum (ex Stapp and Knösel 1954) Rüger and Höfle 1992

Etymology: stel.lu.la.ta. N.L. fem. adj. stellulata, starry, here star-shaped

Gender: feminine

Type strain: ATCC 15215; CIP 105977; DSM 5886; IAM 12621; IFO 15764; JCM 20692; NBRC 15764

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB680962 Analyse FASTA

Effective 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.

IJSEM list: Anonymous. Validation list no. 68. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1999; 49:1-3.

Nomenclatural status: validly published under the ICNP

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

Risk group: 1

• Synonyms:

  • Name	Kind
    Agrobacterium stellulatum (ex Stapp and Knösel 1954) Rüger and Höfle 1992	homotypic synonym, validly published under the ICNP

• Emendations:
  • Biebl et al. 2007 Biebl H, Pukall R, Lunsdorf H, Schulz S, Allgaier M, Tindall BJ, Wagner-Dobler I. Description of Labrenzia alexandrii gen. nov., sp. nov., a novel alphaproteobacterium containing bacteriochlorophyll a, and a proposal for reclassification of Stappia aggregata as Labrenzia aggregata comb. nov., of Stappia marina as Labrenzia marina comb. nov. and of Stappia alba as Labrenzia alba comb. nov., and emended descriptions of the genera Pannonibacter, Stappia and Roseibium, and of the species Roseibium denhamense and Roseibium hamelinense. Int J Syst Evol Microbiol 2007; 57:1095-1107. Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 57, part 5 of the IJSEM. Int J Syst Evol Microbiol 2007; 57:1675-1676.
  • 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:
    • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project.

• Notes:
  • 🥇 Nomenclatural type of the genus Stappia Uchino et al. 1999. 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.
  • 😷 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 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 13 times in PubMed until 2025-06-04.
  • 🙆 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 risk group of other species in the genus.

Parent taxon: Stappia Uchino et al. 1999

Assigned by: 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.

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Record number: 781236