Name: Fervidobacterium nodosum Patel et al. 1985

Category: Species

Proposed as: sp. nov.

Etymology: no.do’sum. L. neut. adj. nodosum, full of knots, knotty, intended to mean swollen

Pronunciation (Latin), gender: … no-DO-sum, neuter

Type strain: ATCC 35602; DSM 5306; Rt17-B1

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: M59177 Analyse FASTA

Effective publication: Patel BKC, Morgan HW, Daniel RM. Fervidobacterium nodosum gen. nov. and spec. nov., a new chemoorganotrophic, caldoactive, anaerobic bacterium. Arch. Microbiol. 1985; 141:63-69.

IJSEM list: Anonymous. Validation list no. 19. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1985; 35:535.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🥇 Nomenclatural type of the genus Fervidobacterium Patel et al. 1985. Publication: Patel BKC, Morgan HW, Daniel RM. Fervidobacterium nodosum gen. nov. and spec. nov., a new chemoorganotrophic, caldoactive, anaerobic bacterium. Arch. Microbiol. 1985; 141:63-69.
  • 😷 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 20 times in PubMed until 2025-06-04.
  • 🧍 The Genbank record shows strain name "Rt17-B1" as a synonym for ATCC 35602. The ATCC database lists "Rt17-B1" as a synonym for ATCC 35602. The DSMZ database lists "Rt17-B1" as a synonym for DSM 5306. The US-DOE Joint Genome Institute project page also shows "Rt17-B1". 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. 🇫🇷
  • 🧍 In the paper by Patel et al. 1985, the authors wrote the following: "Type strain Fervidobacterium nodosum RtI7-B (ATCC 35602)". However, in the effective publication, there is also the following wording: "Strains Rtl6-B1, RtI7-B1 and Wai4-B1 belong to the species Fervidobacterium nodosum with Rtl7-B1 regarded as the type strain". In the Validation List no. 19 the type strain is cited as Rt17-B. The Genbank record shows strain name "Rt17-B1" as a synonym for ATCC 35602 The ATCC database lists "Rt17-B1" as a synonym for ATCC 35602 The DSMZ database lists "Rt17-B1" as a synonym for DSM 5306. The US-DOE Joint Genome Institute project page also shows "Rt17-B1". Consequently, we can assume that RtI7-B, RtI7-B1, and Rt17-B are typing errors! So, in the LPSN, the type strain was corrected to "Rt17-B1". — Hill JE. Personal communication, 2006-12-04.

Parent taxon: Fervidobacterium Patel et al. 1985

Assigned by: Patel BKC, Morgan HW, Daniel RM. Fervidobacterium nodosum gen. nov. and spec. nov., a new chemoorganotrophic, caldoactive, anaerobic bacterium. Arch. Microbiol. 1985; 141:63-69.

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Record number: 776198