Name: Fervidobacterium pennivorans corrig. Friedrich and Antranikian 1999

Category: Species

Proposed as: sp. nov.

Etymology: pen.ni’vo.rans. L. fem. n. penna, feather, wing; L. pres. part. vorans, devouring; N.L. neut. part. adj. pennivorans, feather-devouring (referring to the ability of the organism to degrade keratin, a protein found in feathers)

Pronunciation (Latin), gender: … pen-NI-wo-rans, neuter

Type strain: DSM 9078; Ven5

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: HE582748 Analyse FASTA

Effective publication: Friedrich AB, Antranikian G. Keratin Degradation by Fervidobacterium pennavorans, a Novel Thermophilic Anaerobic Species of the Order Thermotogales. Appl Environ Microbiol 1996; 62:2875-2882. 🇩🇪

IJSEM list: Anonymous. Validation list no. 68. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1999; 49:1-3.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Fervidobacterium pennavorans Friedrich and Antranikian 1999	other spelling of name, inaccurate spelling

• Notes:
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • 😷 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 11 times in PubMed until 2025-06-04.
  • 🧍 Because of restricted availability of the original isolate (DSM 7003) [1] an additional isolate, Ven5 = DSM 9078 [2] was later designated as the type strain [3]. Publication: Friedrich AB, Antranikian G. Keratin Degradation by Fervidobacterium pennavorans, a Novel Thermophilic Anaerobic Species of the Order Thermotogales. Appl Environ Microbiol 1996; 62:2875-2882. 🇩🇪
  • 🧍 See also: Publication: Koch R, Canganella F, Hippe H, Jahnke KD, Antranikian G. Purification and Properties of a Thermostable Pullulanase from a Newly Isolated Thermophilic Anaerobic Bacterium, Fervidobacterium pennavorans Ven5. Appl Environ Microbiol 1997; 63:1088-1094.
  • 🧍 The original spelling of the specific epithet, pennavorans (sic), has been corrected on validation according to Rule 61. Publication: Anonymous. Validation list no. 68. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1999; 49:1-3.

Subdivision:

Number of child taxa with a validly published and correct name: 0
Number of child taxa with a validly published name, including synonyms: 0
Total number of child taxa: 1

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Fervidobacterium pennivorans subsp. keratinolyticus" Javier-Lopez et al. 2022	not validly published	preferred name

Parent taxon: Fervidobacterium Patel et al. 1985

Assigned by: Friedrich AB, Antranikian G. Keratin Degradation by Fervidobacterium pennavorans, a Novel Thermophilic Anaerobic Species of the Order Thermotogales. Appl Environ Microbiol 1996; 62:2875-2882. 🇩🇪

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Record number: 776200