Name: Picrophilus oshimae Schleper et al. 1996

Category: Species

Proposed as: sp. nov.

Etymology: os.hi’mae. N.L. gen. fem. n. oshimae, of Oshima, referring to the Japanese biochemist Tairo Oshima

Pronunciation, gender: os-HI-ma͡e, masculine

Type strain: ATCC 700036; DSM 9789; JCM 10054

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: X84901 Analyse FASTA

Valid publication: Schleper C, Pühler G, Klenk HP, Zillig W. Picrophilus oshimae and Picrophilus torridus fam. nov., gen. nov., sp. nov., two species of hyperacidophilic, thermophilic, heterotrophic, aerobic archaea. Int. J. Syst. Bacteriol. 1996; 46:814-816.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 46, part 3 of the IJSB. Int J Syst Bacteriol 1996; 46:1191.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Picrophilus torridus Zillig et al. 1996	heterotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Picrophilus Schleper et al. 1996. Publication: Schleper C, Pühler G, Klenk HP, Zillig W. Picrophilus oshimae and Picrophilus torridus fam. nov., gen. nov., sp. nov., two species of hyperacidophilic, thermophilic, heterotrophic, aerobic archaea. Int. J. Syst. Bacteriol. 1996; 46:814-816.
  • ⏰ According to Habib et al. (2023), this species is an earlier heterotypic synonym of Picrophilus torridus Zillig et al. 1996. Publication: Habib N, Narsing Rao MP, Jan SA, Banerjee A, Thamchaipenet A, Li WJ. Genome-based reclassification of Picrophilus torridus Zillig et al. 1996 as a later heterotypic synonym of Picrophilus oshimae Schleper et al. 1996. Int J Syst Evol Microbiol 2023; 73:5851.
  • 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Göker M. Notification list. Notification that new names and new combinations have appeared in volume 73, part 4 of the IJSEM. Int J Syst Evol Microbiol 2023; 73:5937.
  • 😷 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 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 8 times in PubMed until 2025-06-04.
  • 🧍 Complete authorship reads: Schleper, Zillig and Pühler 1996 in Schleper, Pühler, Klenk and Zillig 1996.

Parent taxon: Picrophilus Schleper et al. 1996

Assigned by: Schleper C, Pühler G, Klenk HP, Zillig W. Picrophilus oshimae and Picrophilus torridus fam. nov., gen. nov., sp. nov., two species of hyperacidophilic, thermophilic, heterotrophic, aerobic archaea. Int. J. Syst. Bacteriol. 1996; 46:814-816.

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Record number: 779618