Name: Thiothrix Winogradsky 1888 (Approved Lists 1980)

Category: Genus

Proposed as: gen. nov.

Etymology: Thi’o.thrix. Gr. neut. n. theîon, sulfur, brimstone; L. transliteration, thium, sulfur; Gr. fem. n. thrix, hair; N.L. fem. n. Thiothrix, sulfur hair

Gender: feminine (stem: Thiotrich-)

Type species: Thiothrix nivea (Rabenhorst 1865) Winogradsky 1888 (Approved Lists 1980)

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Effective publication: Winogradsky S. Beiträge zur Morphologie und Physiologie der Bacterien. Heft I. Zur Morphologie und Physiologie der Schwefelbacterien. Arthur Felix, Leipzig, 1888.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Emendations:
  • Howarth et al. 1999 Howarth R, Unz RF, Seviour EM, Seviour RJ, Blackall LL, Pickup RW, Jones JG, Yaguchi J, Head IM. Phylogenetic relationships of filamentous sulfur bacteria (Thiothrix spp. and Eikelboom type 021N bacteria) isolated from wastewater-treatment plants and description of Thiothrix eikelboomii sp. nov., Thiothrix unzii sp. nov., Thiothrix fructosivorans sp. nov. and Thiothrix defluvii sp. nov. Int J Syst Bacteriol 1999; 49:1817-1827. Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 49, part 4 of the IJSB. Int J Syst Bacteriol 2000; 50:5-7.
    Notes:
    • Emendation accompanied by the proposal of 4 new species in the genus.
  • Aruga et al. 2002 Aruga S, Kamagata Y, Kohno T, Hanada S, Nakamura K, Kanagawa T. Characterization of filamentous Eikelboom type 021N bacteria and description of Thiothrix disciformis sp. nov. and Thiothrix flexilis sp. nov. Int J Syst Evol Microbiol 2002; 52:1309-1316. Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 52, part 4 of the IJSEM. Int J Syst Evol Microbiol 2002; 52:1439-1440.
    Notes:
    • Emendation accompanied by the proposal of 2 new species in the genus.
  • Boden and Scott 2018 Boden R, Scott KM. Evaluation of the genus Thiothrix Winogradsky 1888 (Approved Lists 1980) emend. Aruga et al. 2002: reclassification of Thiothrix disciformis to Thiolinea disciformis gen. nov., comb. nov., and of Thiothrix flexilis to Thiofilum flexile gen. nov., comb nov., with emended description of Thiothrix. Int J Syst Evol Microbiol 2018; 68:2226-2239. Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 68, part 7 of the IJSEM. Int J Syst Evol Microbiol 2018; 68:3077-3079.
    Notes:
    • Emendation accompanied by the removal of 2 species from the genus.

• Notes:
  • Nomenclatural type of the family "Thiotrichaceae" Pringsheim 1949. Publication: Pringsheim EG. THE RELATIONSHIP BETWEEN BACTERIA AND MYXOPHYCEAE. Bacteriol Rev 1949; 13:47-98.
  • Nomenclatural type of the family Thiotrichaceae Garrity et al. 2005. Publication: Garrity GM, Bell JA, Lilburn T. Family I. Thiotrichaceae fam. nov. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 2 (The Proteobacteria), part B (The Gammaproteobacteria), Springer, New York, 2005, p. 131.
  • Nomenclatural type of the order Thiotrichales Garrity et al. 2005. Publication: Garrity GM, Bell JA, Lilburn T. Order V. Thiotrichales ord. nov. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 2 (The Proteobacteria), part B (The Gammaproteobacteria), Springer, New York, 2005, p. 131.
  • Migula (1894) assigned this genus to the family Beggiatoaceae Migula 1894 (Approved Lists 1980). Publication: Migula W. Über ein neues System der Bakterien. Arbeiten aus dem Bakteriologischen Institut der Technischen Hochschule zu Karlsruhe 1894; 1:235-238.
  • The type species of this genus has alternatively been placed in the genus Beggiatoa Trevisan 1842 (Approved Lists 1980). Publication: Rabenhorst L. Flora Europaea Algarum aquae dulcis et submarinae, Section II. Apud Eduardum Kummerum, Leipzig, 1865.
  • This taxon name is occasionally misprinted in some sources as: "Thiotrix"; "Tiliothrix"; "Tliiothrix"; "Tlliothrix"; "Xhiothrix".
  • Taxonomists who have recently focused on this group are the corresponding authors of Ravin et al. (2021). Editors in search of reviewers are advised to consider additional criteria such as whether a taxon is covered by one of the ICSP subcommittees.
  • The BRCs most frequently used for deposits in this group are: DSM: 8; VKM: 5; ATCC: 4; JCM: 2.
  • According to Komarek and Golubic (1990) originally assigned to Cyanobacteria but probably belonging to Bacteria. Publication: Komarek J, Golubic S. Guide to the Nomenclature and formal taxonomic treatment of oxyphototroph prokaryotes (Cyanoprokaryotes). Unknown Publisher, Unknown City, 1990.
  • Pittman et al. (1991) suggested the abbreviation "THTX" for this genus name but this does not appear to be of practical relevance any longer. Publication: Pittman KF, Walczak CA, Lock CM. Codes and abbreviations for approved of effectively published names of genera of bacteria published from January 1980 to December 1990. Int J Syst Bacteriol 1991; 41:571-579.

Subdivision:

Number of child taxa with a validly published and correct name: 8
Number of child taxa with a validly published name, including synonyms: 10
Total number of child taxa: 17

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Candidatus Thiothrix anitrata" Ravin et al. 2021	not validly published
    Thiothrix caldifontis Chernousova et al. 2009	validly published under the ICNP	correct name
    Thiothrix defluvii Howarth et al. 1999	validly published under the ICNP	correct name
    Thiothrix disciformis Aruga et al. 2002	validly published under the ICNP	synonym
    Thiothrix eikelboomii Howarth et al. 1999	validly published under the ICNP	correct name
    Thiothrix flexilis Aruga et al. 2002	validly published under the ICNP	synonym
    Thiothrix fructosivorans Howarth et al. 1999	validly published under the ICNP	correct name
    Thiothrix lacustris Chernousova et al. 2009	validly published under the ICNP	correct name
    Thiothrix litoralis Ravin et al. 2022	validly published under the ICNP	correct name
    "Candidatus Thiothrix moscovensis" Mardanov et al. 2020	inaccurate spelling
    Thiothrix nivea (Rabenhorst 1865) Winogradsky 1888 (Approved Lists 1980)	validly published under the ICNP	correct name
    "Thiothrix ramosa" Odintsova and Dubinina 1990	not validly published
    "Candidatus Thiothrix singaporensis" Mardanov et al. 2020	not validly published
    "Thiothrix subterranea" Ravin et al. 2021	not validly published
    "Candidatus Thiothrix sulfatifontis" Ravin et al. 2022	not validly published
    Thiothrix unzii Howarth et al. 1999	validly published under the ICNP	correct name
    "Thiothrix winogradskyi" Ravin et al. 2022	not validly published

Parent taxon: Thiotrichaceae Garrity et al. 2005

Assigned by: Garrity GM, Bell JA, Lilburn T. Family I. Thiotrichaceae fam. nov. In: Brenner DJ, Krieg NR, Staley JT, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 2 (The Proteobacteria), part B (The Gammaproteobacteria), Springer, New York, 2005, p. 131.

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Record number: 516837