Name: Spongiibacter tropicus Hwang and Cho 2009

Category: Species

Proposed as: sp. nov.

Etymology: tro’pi.cus. L. masc. adj. tropicus, tropical, of or pertaining to the tropic(s), relating to its isolation from a tropical ocean

Pronunciation (Latin), gender: … TRO-pi-kus, masculine

Type strain: CL-CB221; DSM 19543; KCCM 90065

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: EF988653 Analyse FASTA

Valid publication: Hwang CY, Cho BC. Spongiibacter tropicus sp. nov., isolated from a Synechococcus culture. Int J Syst Evol Microbiol 2009; 59:2176-2179. 🇰🇷

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 59, part 9 of the IJSEM. Int J Syst Evol Microbiol 2009; 59:2921-2922.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 😢 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. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281. 🇬🇧
  • 🧬 The phylogenomic assignment score of this taxon is 0.07485 (N = 3).
  • 😷 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 5 times in PubMed until 2025-06-04.
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Mukherjee S, Seshadri R, Varghese NJ, Eloe-Fadrosh EA, Meier-Kolthoff JP, Goker M, Coates RC, Hadjithomas M, Pavlopoulos GA, Paez-Espino D, et al. 1,003 reference genomes of bacterial and archaeal isolates expand coverage of the tree of life. Nat Biotechnol 2017; 35:676-683. 🇺🇸

Parent taxon: Spongiibacter Graeber et al. 2008

Assigned by: Hwang CY, Cho BC. Spongiibacter tropicus sp. nov., isolated from a Synechococcus culture. Int J Syst Evol Microbiol 2009; 59:2176-2179. 🇰🇷

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Record number: 788091