Name: Helmutkoenigia isoptericolens (Dröge et al. 2008) Brune et al. 2022

Category: Species

Proposed as: comb. nov.

Basonym: Treponema isoptericolens Dröge et al. 2008

Etymology: i.so.pte.ri’co.lens. N.L. neut. pl. n. Isoptera, scientific name of the order of termites; L. pres. part. colens, inhabiting; from L. inf. v. colere, to inhabit; N.L. part. adj. isoptericolens, inhabitant of termites

Gender: feminine

Type strain: DSM 18056; JCM 13955; SPIT5

See detailed strain information at

16S rRNA gene: AM182455 Analyse FASTA

Valid publication: Brune A, Song Y, Oren A, Paster BJ. A new family for 'termite gut treponemes': description of Breznakiellaceae fam. nov., Gracilinema caldarium gen. nov., comb. nov., Leadbettera azotonutricia gen. nov., comb. nov., Helmutkoenigia isoptericolens gen. nov., comb. nov., and Zuelzera stenostrepta gen. nov., comb. nov., and proposal of Rectinemataceae fam. nov. Int J Syst Evol Microbiol 2022; 72:5439.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 72, part 5 of the IJSEM. Int J Syst Evol Microbiol 2022; 72:5476.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Treponema isoptericolens Dröge et al. 2008

• Synonyms:

  • Name	Kind
    Treponema isoptericolens Dröge et al. 2008	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Helmutkoenigia Brune et al. 2022. Publication: Brune A, Song Y, Oren A, Paster BJ. A new family for 'termite gut treponemes': description of Breznakiellaceae fam. nov., Gracilinema caldarium gen. nov., comb. nov., Leadbettera azotonutricia gen. nov., comb. nov., Helmutkoenigia isoptericolens gen. nov., comb. nov., and Zuelzera stenostrepta gen. nov., comb. nov., and proposal of Rectinemataceae fam. nov. Int J Syst Evol Microbiol 2022; 72:5439.
  • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. The phrase "validly described" is misleading. Whether taxa can have "members" is debatable. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281.
  • ❗ Helmutkoenigia isoptericolens is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Helmutkoenigia.
  • 🎓 Name mentioned 1 time in PubMed until 2024-03-27.
  • 🧍 As of 2022-08-12 this emendation was not yet included in an IJSEM List of Changes in Taxonomic Opinion.

Parent taxon: Helmutkoenigia Brune et al. 2022

Assigned by: Brune A, Song Y, Oren A, Paster BJ. A new family for 'termite gut treponemes': description of Breznakiellaceae fam. nov., Gracilinema caldarium gen. nov., comb. nov., Leadbettera azotonutricia gen. nov., comb. nov., Helmutkoenigia isoptericolens gen. nov., comb. nov., and Zuelzera stenostrepta gen. nov., comb. nov., and proposal of Rectinemataceae fam. nov. Int J Syst Evol Microbiol 2022; 72:5439.

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Record number: 28801