Name: Roseibacterium elongatum Suzuki et al. 2006

Category: Species

Proposed as: sp. nov.

Etymology: e.lon.ga’tum. L. neut. part. adj. elongatum, elongated, stretched out

Pronunciation (Latin), gender: ro-se-i-bak-TE-ri-um e-lon-GA-tum, neuter

Type strain: CIP 107377; DSM 19469; JCM 11220; OCh 323

Conduct genome-based taxonomy at

16S rRNA gene: AB601471 Analyse FASTA

Valid publication: Suzuki T, Mori Y, Nishimura Y. Roseibacterium elongatum gen. nov., sp. nov., an aerobic, bacteriochlorophyll-containing bacterium isolated from the west coast of Australia. Int J Syst Evol Microbiol 2006; 56:417-421. 🇯🇵

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 56, part 2 of the IJSEM. Int J Syst Evol Microbiol 2006; 56:929-930.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Roseicyclus elongatus (Suzuki et al. 2006) Zhou et al. 2024

Risk group: 1

• Synonyms:

  • Name	Kind
    Roseicyclus elongatus (Suzuki et al. 2006) Zhou et al. 2024	homotypic synonym, validly published under the ICNP

• Emendations:
  • 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:
  • 🥇 Nomenclatural type of the genus Roseibacterium Suzuki et al. 2006. Publication: Suzuki T, Mori Y, Nishimura Y. Roseibacterium elongatum gen. nov., sp. nov., an aerobic, bacteriochlorophyll-containing bacterium isolated from the west coast of Australia. Int J Syst Evol Microbiol 2006; 56:417-421. 🇯🇵
  • ❗ Roseibacterium elongatum 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 Roseibacterium.
  • 😷 The risk group for Germany has been imported on 2026-08-13. 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 6 times in PubMed until 2026-06-11.
  • 🧍 The genome of the type strain was sequenced by Riedel et al. (2014). Publication: Riedel T, Fiebig A, Goker M, Klenk HP. Complete genome sequence of the bacteriochlorophyll a-containing Roseibacterium elongatum type strain (DSM 19469^T), a representative of the Roseobacter group isolated from Australian coast sand. Stand Genomic Sci 2014; 9:840-854. 🇩🇪

Parent taxon: Roseibacterium Suzuki et al. 2006

Assigned by: Suzuki T, Mori Y, Nishimura Y. Roseibacterium elongatum gen. nov., sp. nov., an aerobic, bacteriochlorophyll-containing bacterium isolated from the west coast of Australia. Int J Syst Evol Microbiol 2006; 56:417-421. 🇯🇵

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Record number: 784816