Name: Labrys Vasilyeva and Semenov 1985

Category: Genus

Proposed as: gen. nov.

Etymology: Gr. fem. n. labrys, double-headed ax, an organism resembling a double-headed ax by the shape of the cell

Gender, pronunciation: feminine (stem: Labry-), LA-brys

Type species: Labrys monacha corrig. Vasilyeva and Semenov 1985

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Effective publication: Vasilyeva LV, Semenov AM. Labrys monahos, a new budding prosthecate bacterium with radial symmetry. (In Russian). Mikrobiologiya 1984; 53:85-92. 🇷🇺

IJSEM list: Anonymous. Validation list no. 18. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1985; 35:375-376.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Emendations:
  • Islam et al. 2007 Islam MS, Kawasaki H, Nakagawa Y, Hattori T, Seki T. Labrys okinawensis sp. nov. and Labrys miyagiensis sp. nov., budding bacteria isolated from rhizosphere habitats in Japan, and emended descriptions of the genus Labrys and Labrys monachus. Int J Syst Evol Microbiol 2007; 57:552-557. 🇯🇵 Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 57, part 3 of the IJSEM. Int J Syst Evol Microbiol 2007; 57:1173-1174.
    Notes:
    • ⊕ Emendation accompanied by the proposal of 2 new species in the genus.
    • 🧍 In the paper by Islam et al. 2007, the name Labrys is cited as Labrys Vasil'eva and Semenov 1985.
  • Albert et al. 2010 Albert RA, Waas NE, Langer S, Pavlons SC, Feldner JL, Rossello-Mora R, Busse HJ. Labrys wisconsinensis sp. nov., a budding bacterium isolated from Lake Michigan water, and emended description of the genus Labrys. Int J Syst Evol Microbiol 2010; 60:1570-1576. 🇺🇸 Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 60, part 7 of the IJSEM. Int J Syst Evol Microbiol 2010; 60:2261-2262.
    Notes:
    • ⊕ Emendation accompanied by the proposal of 1 new species in the genus.
    • 🧍 In the paper by Albert et al. 2010, the name Labrys is cited as Labrys Vasil'eva and Semenov 1985.

• Notes:
  • 🥇 Nomenclatural type of the family "Labraceae" Harkes et al. 2020. Publication: Harkes P, van Steenbrugge JJM, van den Elsen SJJ, Suleiman AKA, de Haan JJ, Holterman MHM, Helder J. Shifts in the Active Rhizobiome Paralleling Low Meloidogyne chitwoodi Densities in Fields Under Prolonged Organic Soil Management. Front Plant Sci 2019; 10:1697. 🇳🇱
  • 🥇 Nomenclatural type of the family "Labryaceae" corrig. Harkes et al. 2020. Publication: Harkes P, van Steenbrugge JJM, van den Elsen SJJ, Suleiman AKA, de Haan JJ, Holterman MHM, Helder J. Shifts in the Active Rhizobiome Paralleling Low Meloidogyne chitwoodi Densities in Fields Under Prolonged Organic Soil Management. Front Plant Sci 2019; 10:1697. 🇳🇱
  • 🧕 Boone et al. (2001) assigned this genus to the family Hyphomicrobiaceae Babudieri 1950 (Approved Lists 1980). Publication: Garrity GM, Holt JG. The Road Map to the Manual. In: Boone DR, Castenholz RW, Garrity GM (eds), Bergey's Manual of Systematic Bacteriology, second edition, vol. 1 (The Archaea and the deeply branching and phototrophic Bacteria), Springer-Verlag, New York, 2001, p. 119-166. 🇺🇸
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: de Lajudie P, Young JPW. International Committee on Systematics of Prokaryotes Subcommittee on the Taxonomy of Rhizobia and Agrobacteria Minutes of the meeting by video conference, 11 July 2018. Int J Syst Evol Microbiol 2019; 69:1835-1840. 🇫🇷
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 9; JCM: 6; ATCC: 5; LMG: 3; VKM: 3; MAFF: 1; KCTC: 1; BCRC: 1; NCAIM: 1; NBRC: 1.
  • 🧍 Pittman et al. (1991) suggested the abbreviation "LBRY" 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: 9
Total number of child taxa: 12

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Labrys methylaminiphila corrig. Miller et al. 2005	validly published under the ICNP	correct name
    Labrys methylaminiphilus Miller et al. 2005	inaccurate spelling	misspelling
    Labrys miyagiensis Islam et al. 2007	validly published under the ICNP	correct name
    Labrys monacha corrig. Vasilyeva and Semenov 1985	validly published under the ICNP	correct name
    Labrys monachus Vasilyeva and Semenov 1985	inaccurate spelling	misspelling
    Labrys monahos Vasilyeva and Semenov 1985	inaccurate spelling	misspelling
    Labrys neptuniae Chou et al. 2007	validly published under the ICNP	correct name
    Labrys okinawensis Islam et al. 2007	validly published under the ICNP	correct name
    Labrys portucalensis Carvalho et al. 2008	validly published under the ICNP	synonym
    Labrys sedimenti Csépányi et al. 2025	validly published under the ICNP	correct name
    Labrys soli Nguyen et al. 2015	validly published under the ICNP	correct name
    Labrys wisconsinensis Albert et al. 2010	validly published under the ICNP	correct name

Parent taxon: Xanthobacteraceae Lee et al. 2005

Assigned by: Lee KB, Liu CT, Anzai Y, Kim H, Aono T, Oyaizu H. The hierarchical system of the 'Alphaproteobacteria': description of Hyphomonadaceae fam. nov., Xanthobacteraceae fam. nov. and Erythrobacteraceae fam. nov. Int J Syst Evol Microbiol 2005; 55:1907-1919. 🇯🇵

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Record number: 515906