Species Photorhabdus namnaonensis

Name: Photorhabdus namnaonensis (Glaeser et al. 2017) Machado et al. 2018

Category, proposed as: species, comb. nov.

Basonym: Photorhabdus luminescens subsp. namnaonensis Glaeser et al. 2017

Etymology: nam.na.o.nen’sis. N.L. fem. adj. namnaonensis, pertaining to the Nam Nao district of the Phetchabun region in Thailand

Pronunciation (Latin), gender: p^ho-to-R^HAB-dus nam-na-o-NEN-sis, feminine

Type strain: CCM 8729; DSM 104082; LMG 29915; PB45.5

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: MK039087 Analyse FASTA

Valid publication: Machado RAR, Wuthrich D, Kuhnert P, Arce CCM, Thonen L, Ruiz C, Zhang X, Robert CAM, Karimi J, Kamali S, et al. Whole-genome-based revisit of Photorhabdus phylogeny: proposal for the elevation of most Photorhabdus subspecies to the species level and description of one novel species Photorhabdus bodei sp. nov., and one novel subspecies Photorhabdus laumondii subsp. clarkei subsp. nov. Int J Syst Evol Microbiol 2018; 68:2664-2681. 🇨🇭

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 68, part 8 of the IJSEM. Int J Syst Evol Microbiol 2018; 68:3394-3396.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 1

• Synonyms:

  • Name	Kind
    Photorhabdus luminescens subsp. namnaonensis Glaeser et al. 2017	homotypic synonym, validly published under the ICNP, distinct rank

• Notes:
  • 😷 The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 1, note = "n". — 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.
  • 🎓 Name mentioned 1 time in PubMed until 2026-06-11.
  • 🫡 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of other species in the genus. This name is not taxonomically suspended any more in favour of Photorhabdus luminescens (Thomas and Poinar 1979) Boemare et al. 1993. 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. 🇫🇷 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.

Parent taxon: Photorhabdus Boemare et al. 1993

Assigned by: Machado RAR, Wuthrich D, Kuhnert P, Arce CCM, Thonen L, Ruiz C, Zhang X, Robert CAM, Karimi J, Kamali S, et al. Whole-genome-based revisit of Photorhabdus phylogeny: proposal for the elevation of most Photorhabdus subspecies to the species level and description of one novel species Photorhabdus bodei sp. nov., and one novel subspecies Photorhabdus laumondii subsp. clarkei subsp. nov. Int J Syst Evol Microbiol 2018; 68:2664-2681. 🇨🇭

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Record number: 798789