Genus Photorhabdus

Name: Photorhabdus Boemare et al. 1993

Category, proposed as: genus, gen. nov.

Etymology: Pho.to.rhab’dus. Gr. neut. n. phôs (gen. phôtos), light; Gr. fem. n. rhabdos, rod; N.L. fem. n. Photorhabdus, bioluminescent rod-shaped bacterium

Gender, pronunciation (Latin): feminine (stem: Photorhabd-), p^ho-to-R^HAB-dus

Type species: Photorhabdus luminescens (Thomas and Poinar 1979) Boemare et al. 1993

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Valid publication: Boemare NE, Akhurst RJ, Mourant RG. DNA relatedness between Xenorhabdus spp. (Enterobacteriaceae), symbiotic bacteria of entomopathogenic nematodes, and a proposal to transfer Xenorhabdus luminescens to a new genus, Photorhabdus gen. nov. Int. J. Syst. Bacteriol. 1993; 43:249-255. 🇫🇷

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 43, part 2 of the IJSB. Int J Syst Bacteriol 1993; 43:625.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🧕 Boone et al. (2001) assigned this genus to the family Enterobacteriaceae Rahn 1937 (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. 🇺🇸
  • 🚋 The type species of this genus has alternatively been placed in the genus Xenorhabdus Thomas and Poinar 1979 (Approved Lists 1980). Publication: Thomas GM, Poinar Jr. GO. Xenorhabdus gen. nov., a genus of entomopathogenic nematophilic bacteria of the family Enterobacteriaceae. International Journal of Systematic Bacteriology 1979; 29:352-360.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Phororhabdus"; "Photohabdus"; "Photohapdus"; "Photorabdus"; "Photorhabdut"; "Photorhabus"; "Photorhadus"; "Photorhahdus"; "Photorhbdus"; "Photothabdus"; "Phutorhabdus".
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of An and Grewal (2011), Machado et al. (2019), Ferreira et al. (2014), Fischer-Le Saux et al. (1999), Machado et al. (2024). 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 phylogenomic assignment score of this taxon is 0.00705 (N = 5).
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 19; CIP: 11; CCOS: 8; CCM: 7; ATCC: 6; NCIMB: 2; LMG: 2; NCAIM: 1; H: 1; CCCT: 1.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🧍 See also Akhurst et al. (2004). Publication: Akhurst RJ, Boemare NE, Janssen PH, Peel MM, Alfredson DA, Beard CE. Taxonomy of Australian clinical isolates of the genus Photorhabdus and proposal of Photorhabdus asymbiotica subsp. asymbiotica subsp. nov. and P. asymbiotica subsp. australis subsp. nov. Int J Syst Evol Microbiol 2004; 54:1301-1310. 🇦🇺

Subdivision:

Number of child taxa with a validly published and correct name: 26
Number of child taxa with a validly published name, including synonyms: 26
Total number of child taxa: 26

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Photorhabdus aballayi Machado et al. 2023	validly published under the ICNP	correct name
    Photorhabdus aegyptia Machado et al. 2021	validly published under the ICNP	correct name
    Photorhabdus africana Machado et al. 2024	validly published under the ICNP	correct name
    Photorhabdus akhurstii (Fischer-Le Saux et al. 1999) Machado et al. 2018	validly published under the ICNP	correct name
    Photorhabdus antumapuensis Castaneda-Alvarez et al. 2022	validly published under the ICNP	correct name
    Photorhabdus asymbiotica Fischer-Le Saux et al. 1999	validly published under the ICNP	correct name
    Photorhabdus australis (Akhurst et al. 2004) Machado et al. 2018	validly published under the ICNP	correct name
    Photorhabdus bodei Machado et al. 2018	validly published under the ICNP	correct name
    Photorhabdus caribbeanensis (Tailliez et al. 2010) Machado et al. 2018	validly published under the ICNP	correct name
    Photorhabdus cinerea (Tóth and Lakatos 2008) Machado et al. 2018	validly published under the ICNP	correct name
    Photorhabdus hainanensis (Tailliez et al. 2010) Machado et al. 2018	validly published under the ICNP	correct name
    Photorhabdus heterorhabditis Ferreira et al. 2014	validly published under the ICNP	correct name
    Photorhabdus hindustanensis Machado et al. 2021	validly published under the ICNP	correct name
    Photorhabdus kayaii (Hazir et al. 2004) Machado et al. 2018	validly published under the ICNP	correct name
    Photorhabdus khanii (Tailliez et al. 2010) Machado et al. 2018	validly published under the ICNP	correct name
    Photorhabdus kleinii (An and Grewal 2011) Machado et al. 2018	validly published under the ICNP	correct name
    Photorhabdus laumondii (Fischer-Le Saux et al. 1999) Machado et al. 2018	validly published under the ICNP	correct name
    Photorhabdus luminescens (Thomas and Poinar 1979) Boemare et al. 1993	validly published under the ICNP	correct name
    Photorhabdus machadonis Bhat et al. 2026	validly published under the ICNP	correct name
    Photorhabdus namnaonensis (Glaeser et al. 2017) Machado et al. 2018	validly published under the ICNP	correct name
    Photorhabdus noenieputensis (Ferreira et al. 2013) Machado et al. 2018	validly published under the ICNP	correct name
    Photorhabdus stackebrandtii (An and Grewal 2011) Machado et al. 2018	validly published under the ICNP	correct name
    Photorhabdus tasmaniensis (Tailliez et al. 2010) Machado et al. 2018	validly published under the ICNP	correct name
    Photorhabdus temperata Fischer-Le Saux et al. 1999	validly published under the ICNP	correct name
    Photorhabdus thracensis (Hazir et al. 2004) Machado et al. 2018	validly published under the ICNP	correct name
    Photorhabdus viridis Machado et al. 2025	validly published under the ICNP	correct name

Parent taxon: Morganellaceae Adeolu et al. 2016

Assigned by: Adeolu M, Alnajar S, Naushad S, S Gupta R. Genome-based phylogeny and taxonomy of the 'Enterobacteriales': proposal for Enterobacterales ord. nov. divided into the families Enterobacteriaceae, Erwiniaceae fam. nov., Pectobacteriaceae fam. nov., Yersiniaceae fam. nov., Hafniaceae fam. nov., Morganellaceae fam. nov., and Budviciaceae fam. nov. Int J Syst Evol Microbiol 2016; 66:5575-5599. 🇨🇦

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Record number: 516324