Name: Thermus scotoductus Kristjansson et al. 1994

Category: Species

Proposed as: sp. nov.

Etymology: sco.to.duc.tus. Gr. masc. n. skotos, darkness; L. masc. n. ductus, Roman water duct; N.L. masc. n. scotoductus, intended to mean living in pipes and producing a dark pigment

Gender: masculine

Type strain: ATCC 51532; DSM 8553; JCM 11601; Strain SE-1

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF032127 Analyse FASTA

Effective publication: Kristjansson JK, Hjorleifsdottir S, Marteinsson VT, Alfredsson GA. Thermus scotoductus, sp. nov., a pigment-producing thermophilic bacterium from hot tap water in Iceland and including Thermus sp. X-1. Syst. Appl. Microbiol. 1994; 17:44-50.

IJSEM list: Anonymous. Validation list no. 53. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1995; 45:418-419.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 😷 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.
  • 🎓 Name mentioned 61 times in PubMed until 2024-03-27.
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Garcia-Lopez M, Meier-Kolthoff JP, Tindall BJ, Gronow S, Woyke T, Kyrpides NC, Hahnke RL, Goker M. Analysis of 1,000 Type-Strain Genomes Improves Taxonomic Classification of Bacteroidetes. Front Microbiol 2019; 10:2083.
  • 🧍 Validation repeated in List No 53, IJSB 45:418. Publication: Anonymous. Validation list no. 53. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1995; 45:418-419.
  • 🧍 The date of valid publication of this name is in fact that of the first citation in a Validation List (List no. 50, published 1 July 1994) [2]. Publication: Euzeby JP, Kudo T. Corrigenda to the validation lists. Int J Syst Evol Microbiol 2001; 51:1933-1938.
  • 🧍 The species Thermus scotoductus (effective publication: Kristjansson et al. 1994, type strain: strain SE-1 = DSM 8553 = ATCC 51532) appears also on the Validation List no. 53 [1]. The date of valid publication of this name is in fact that of the first citation in a Validation List (List no. 50, published 1 July 1994) [2]. Publication: Anonymous. Validation list no. 53. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1995; 45:418-419.

Parent taxon: Thermus Brock and Freeze 1969 (Approved Lists 1980)

Assigned by: Kristjansson JK, Hjorleifsdottir S, Marteinsson VT, Alfredsson GA. Thermus scotoductus, sp. nov., a pigment-producing thermophilic bacterium from hot tap water in Iceland and including Thermus sp. X-1. Syst. Appl. Microbiol. 1994; 17:44-50.

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Record number: 782667