Name: Porphyrobacter tepidarius Hanada et al. 1997

Category: Species

Proposed as: sp. nov.

Etymology: te.pi.da’ri.us. L. masc. adj. tepidarius, of or belonging to tepid water or to a tepid bath

Pronunciation (Latin), gender: por-p^hy-ro-BAK-ter te-pi-DA-ri-us, masculine

Type strain: DSM 10594; OT3

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB033328 Analyse FASTA

Valid publication: Hanada S, Kawase Y, Hiraishi A, Takaichi S, Matsuura K, Shimada K, Nagashima KV. Porphyrobacter tepidarius sp. nov., a moderately thermophilic aerobic photosynthetic bacterium isolated from a hot spring. Int J Syst Bacteriol 1997; 47:408-413. 🇯🇵

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 47, part 2 of the IJSB. Int J Syst Bacteriol 1997; 47:917-919.

Nomenclatural status: validly published under the ICNP

Taxonomic status: orphaned species

Risk group: 1

• Synonyms:

  • Name	Kind
    "Erythrobacter tepidarius" (Hanada et al. 1997) Xu et al. 2020	homotypic synonym, not validly published

• Notes:
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • ❗ Porphyrobacter tepidarius 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 Porphyrobacter.
  • 😷 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 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 2 times in PubMed until 2026-06-11.
  • 🧍 In the paper by Hanada et al., the type strain DSM 10594 is erroneously cited as DSM 10595. Publication: Euzeby JP. List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet. Int J Syst Bacteriol 1997; 47:590-592. 🇫🇷
  • 🧍 The phylogenetic position of this species was determined in a genome-scale analysis by 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. 🇩🇪

Parent taxon: Porphyrobacter Fuerst et al. 1993

Assigned by: Hanada S, Kawase Y, Hiraishi A, Takaichi S, Matsuura K, Shimada K, Nagashima KV. Porphyrobacter tepidarius sp. nov., a moderately thermophilic aerobic photosynthetic bacterium isolated from a hot spring. Int J Syst Bacteriol 1997; 47:408-413. 🇯🇵

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.779762Copy to clipboardLink copied to clipboard

Record number: 779762