Name: Thioalkalicoccus Bryantseva et al. 2000

Category: Genus

Proposed as: gen. nov.

Etymology: Thi.o.al.ka.li.coc’cus. Gr. neut. n. theîon, sulphur; Arabic masc. n. al-qalyi, potash, soda; N.L. masc. n. coccus, sphere; from Gr. masc. n. kokkos, grain; N.L. masc. n. Thioalkalicoccus, sulphur sphere from soda

Gender, pronunciation (Latin): masculine (stem: Thioalkalicocc-), t^hi-o-al-ka-li-KOK-kus

Type species: Thioalkalicoccus limnaeus Bryantseva et al. 2000

16S rRNA gene: Analyse FASTA

Valid publication: Bryantseva IA, Gorlenko VM, Kompantseva EI, Imhoff JF. Thioalkalicoccus limnaeus gen. nov., sp. nov., a new alkaliphilic purple sulfur bacterium with bacteriochlorophyll b. Int J Syst Evol Microbiol 2000; 50:2157-2163. 🇩🇪

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 50, part 6 of the IJSEM. Int J Syst Evol Microbiol 2001; 51:267-268.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    Thialkalicoccus corrig. Bryantseva et al. 2000	homotypic synonym, validly published under the ICNP, inappropriate correction

• Emendations:
  • Bryantseva et al. 2025 Bryantseva IA, Kyndt JA, Imhoff JF. First genome sequence of a purple sulphur bacterium of the genus Thioalkalicoccus, its characterization as a new isolate of Thioalkalicoccus limnaeus and proposal of strain Um2 as neotype of this species. Int J Syst Evol Microbiol 2025; 75:6657. 🇺🇸 Oren A, Göker M. Notification list. Notification that new names and new combinations have appeared in volume 75, part 1 of the IJSEM. Int J Syst Evol Microbiol 2025; 75:6689.

• Notes:
  • 🚋 The type species of this genus has alternatively been placed in the genus Thialkalicoccus corrig. Bryantseva et al. 2000. Publication: Bryantseva IA, Gorlenko VM, Kompantseva EI, Imhoff JF. Thioalkalicoccus limnaeus gen. nov., sp. nov., a new alkaliphilic purple sulfur bacterium with bacteriochlorophyll b. Int J Syst Evol Microbiol 2000; 50:2157-2163. 🇩🇪
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Imhoff JF, Madigan MT. International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of phototrophic bacteria. Minutes of the Meetings, 28 August 2000, Barcelona, Spain. Int. J. Syst. Evol. Microbiol. 2002; 52:2335-2336. 🇩🇪
  • 🧍 The original spelling of the name, Thioalkalicoccus (sic), was corrected by the List Editor of the IJSEM to Thialkalicoccus (IJSEM 51:267). This correction was withdrawn following a decision of the Judicial Commission of the International Committee on Systematics of Prokaryotes at the Xth International (IUMS) Congress of Bacteriology and Applied Microbiology 2002, Paris (See IJSEM 55:527, Session 2, Minute 13). Publication: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 50, part 6 of the IJSEM. Int J Syst Evol Microbiol 2001; 51:267-268.
  • 🧍 However, during the meeting of the Judicial Commission held during the Xth International (IUMS) Congress of Bacteriology and Applied Microbiology [2], H.G. Trüper proposed that the recommendations governing the use of the connecting vowel should be overruled by the usage in chemistry and physics. Consequently, in combined names, which include terms used in chemistry or physics the connecting vowel shall not be dropped when the following component starts with a vowel and when this may cause ambiguity or uncertainty in meaning [2]. The Judicial Commission unanimously agreed to this proposal [2] and the original spelling, Thioalkalicoccus, must be used. Publication: De Vos P, Trüper HG, Tindall BJ. Judicial Commission of the International Committee on Systematics of Prokaryotes Xth International (IUMS) Congress of Bacteriology and Applied Microbiology. Minutes of the meetings, 28, 29 and 31 July and 1 August 2002, Paris, France. Int. J. Syst. Evol. Microbiol. 2005; 55:525-532. 🇩🇪
  • 🧍 The original spelling, Thioalkalicoccus, was corrected to Thialkalicoccus by the List Editor of the IJSEM [1]. Publication: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 50, part 6 of the IJSEM. Int J Syst Evol Microbiol 2001; 51:267-268.

Subdivision:

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

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Thioalkalicoccus limnaeus Bryantseva et al. 2000	validly published under the ICNP	correct name

Parent taxon: Chromatiaceae Bavendamm 1924 (Approved Lists 1980)

Assigned by: Garrity GM, Bell JA, Lilburn T. Class III. Gammaproteobacteria class. 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. 1. 🇺🇸

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Record number: 517367