Name: Leptonema illini Hovind-Hougen 1983

Category: Species

Proposed as: sp. nov.

Etymology: N.L. gen. neut. n. illini, of Illinois, named after the state of Illinois, U.S.A., where the first isolate was obtained

Gender: neuter

Type strain: 3055; DSM 21528; NCTC 11301

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: Z21632 Analyse FASTA

Valid publication: Hovind-Hougen K. Leptospiraceae, a new family to include Leptospira Noguchi 1917 and Leptonema gen. nov. Int. J. Syst. Bacteriol. 1979; 29:245-251.

IJSEM list: Anonymous. Validation list no. 10. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1983; 33:438-440.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • Hördt et al. 2020 Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.

• Notes:
  • Nomenclatural type of the genus Leptonema Hovind-Hougen 1983. Publication: Hovind-Hougen K. Leptospiraceae, a new family to include Leptospira Noguchi 1917 and Leptonema gen. nov. Int. J. Syst. Bacteriol. 1979; 29:245-251.
  • The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Huntemann M, Stackebrandt E, Held B, Nolan M, Lucas S, Hammon N, Deshpande S, Cheng JF, Tapia R, Goodwin LA, et al. Genome sequence of the phylogenetically isolated spirochete Leptonema illini type strain (3055^T). Stand Genomic Sci 2013; 8:177-187.
  • Leptonema illini Hovind-Hougen 1979 was validly published in the International Journal of Systematic Bacteriology (Int. J. Syst. Bacteriol., 1979, 29, 245-251.) which would qualify it for inclusion in the Approved Lists of Bacterial Names. The omission of this name from the Approved Lists 1980 is clearly not in accordance with the Bacteriological Code (1990 Revision) Rule 24a, Note 1. Publication: Lapage SP, Sneath PHA, Lessel EF, Skerman VBD, Seeliger HPR, Clark WA. International code of nomenclature of bacteria (1990 revision). American Society for Microbiology, Washington, 1992.

Parent taxon: Leptonema Hovind-Hougen 1983

Assigned by: Hovind-Hougen K. Leptospiraceae, a new family to include Leptospira Noguchi 1917 and Leptonema gen. nov. Int. J. Syst. Bacteriol. 1979; 29:245-251.

Linking: To permanently link to this page, use https://lpsn.dsmz.de/species/leptonema-illiniCopy to clipboardLink copied to clipboard

Record number: 784130