Name: Ruegeria pomeroyi (González et al. 2003) Yi et al. 2007

Category: Species

Proposed as: comb. nov.

Basonym: Silicibacter pomeroyi González et al. 2003

Etymology: po.me.roy’i. N.L. gen. masc. n. pomeroyi, of Lawrence R. Pomeroy, marine microbial ecologist who first elucidated the role of bacteria in the marine food web

Gender: feminine

Type strain: ATCC 700808; DSM 15171; DSS-3

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF098491 Analyse FASTA

Valid publication: Yi H, Lim YW, Chun J. Taxonomic evaluation of the genera Ruegeria and Silicibacter: a proposal to transfer the genus Silicibacter Petursdottir and Kristjansson 1999 to the genus Ruegeria Uchino et al. 1999. Int J Syst Evol Microbiol 2007; 57:815-819.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 57, part 4 of the IJSEM. Int J Syst Evol Microbiol 2007; 57:1374-1375.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Silicibacter pomeroyi González et al. 2003	homotypic synonym, validly published under the ICNP

• Emendations:
  • Vandecandelaere et al. 2008 Vandecandelaere I, Nercessian O, Segaert E, Achouak W, Faimali M, Vandamme P. Ruegeria scottomollicae sp. nov., isolated from a marine electroactive biofilm. Int J Syst Evol Microbiol 2008; 58:2726-2733. Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 58, part 12 of the IJSEM. Int J Syst Evol Microbiol 2009; 59:452-453.
  • 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 phylogenomic assignment score of this taxon is -0.00887 (N = 134).
  • 😷 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 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 91 times in PubMed until 2025-06-04.
  • 🧍 According to Muramatsu et al. 2007, 16S rRNA gene sequence analysis suggests that the genera Ruegeria and Silicibacter are closely related and should be integrated into one genus (i.e. Ruegeria Uchino et al. 1999 which has priority over Silicibacter Petursdottir and Kristjansson 1999). However, their differential phenotypic properties do not support this unification. Consequently the authors retain the two species of Silicibacter (Silicibacter lacuscaerulensis Petursdottir and Kristjansson 1999, and Silicibacter pomeroyi González et al. 2003) in their paper. Publication: Muramatsu Y, Uchino Y, Kasai H, Suzuki K, Nakagawa Y. Ruegeria mobilis sp. nov., a member of the Alphaproteobacteria isolated in Japan and Palau. Int J Syst Evol Microbiol 2007; 57:1304-1309.

Parent taxon: Ruegeria Uchino et al. 1999

Assigned by: Yi H, Lim YW, Chun J. Taxonomic evaluation of the genera Ruegeria and Silicibacter: a proposal to transfer the genus Silicibacter Petursdottir and Kristjansson 1999 to the genus Ruegeria Uchino et al. 1999. Int J Syst Evol Microbiol 2007; 57:815-819.

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Record number: 786142