| Photorhabdus namnaonensis |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Enterobacteriales, Family Morganellaceae, Genus Photorhabdus,
Photorhabdus namnaonensis (Glaeser et al. 2017) Machado et al. 2018.
Old synonym: Photorhabdus luminescens subsp. namnaonensis Glaeser et al. 2017.
Photorhabdus namnaonensis (Glaeser et al. 2017) Machado et al. 2018.
Old synonym: Photorhabdus luminescens subsp. namnaonensis Glaeser et al. 2017.
Gram-negative, 1 x 2 µm rods. Motile. Non-spore-forming.
Colonies are 2 mm in diameter and yellowish after 48 h at 30 ºC. Grows well on NA,
brain heart infusion agar, R2A agar, tryptic soy agar (TSA) and MacConkey agar. No
growth below 8 ºC or above 39-40 ºC.
Produce luminescence.
brain heart infusion agar, R2A agar, tryptic soy agar (TSA) and MacConkey agar. No
growth below 8 ºC or above 39-40 ºC.
Produce luminescence.
Isolated from Heterorhabditis baujardi nematodes collected from the Nam Nao district of central Thailand.
Associated with Heterorhabditis georgiana, an entomopathogenic nematode.
- Glaeser SP, Tobias NJ, Thanwisai A, Chantratita N, Bode HB, Kampfer P. Photorhabdus luminescens subsp. namnaonensis
subsp. nov., isolated from Heterorhabditis baujardi nematodes. Int J Syst Evol Microbiol 2017; 67:1046-1051. - 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.
Positive results for citrate (Simmons), gelatinase, acid production from D-glucose, D-mannose, maltose and trehalose.
Can utilize as a sole carbon source (weakly and after 7 days of incubation) acetate, N-acetylgalactosamine, N-acetylglucosamine,
gluconate, D-glucose, maltose, D-mannose, D-fructose, D-ribose, trehalose, i-inositol, cis-aconitate, citrate, fumarate, DL-lactate,
pyruvate, L-alanine, L-aspartate, L-serine and L-proline.
Negative results for arginine dihydrolase, alkalinization of malonate, catalase, esculin hydrolysis, beta-galactosidase (ONPG), H2S
production, indole production, lysine decarboxylase, ornithine decarboxylase, oxidase, urease, Voges-Proskauer test, acid production
from adonitol, D-arabitol, L-arabinose, cellobiose, dulcitol, erythritol, fructose glycerol, i-inositol, lactose, D-mannitol, melibiose,
raffinose, ribose, L-rhamnose. sucrose, salicin, D-sorbitol, and D-xylose.
No utilization of L-arabinose, L-arbutin, cellobiose, D-galactose, alpha-melibiose, L-rhamnose, adonitol, maltitol, glycerol, D-
mannitol, sucrose, salicin, D-xylose, D-sorbitol, trans-aconitate, putrescine, propionate, adipate, 4-aminobutyrate, azelate, glutarate,
DL-3-hydroxybutyrate, itaconate, mesaconate, 2-oxoglutarate, suberate, beta-alanine, L-leucine, L-ornithine, L-phenylalanine, L-
tryptophan, 3-hydroxybenzoate, 4-hydroxybenzoate and phenylacetate.
Can utilize as a sole carbon source (weakly and after 7 days of incubation) acetate, N-acetylgalactosamine, N-acetylglucosamine,
gluconate, D-glucose, maltose, D-mannose, D-fructose, D-ribose, trehalose, i-inositol, cis-aconitate, citrate, fumarate, DL-lactate,
pyruvate, L-alanine, L-aspartate, L-serine and L-proline.
Negative results for arginine dihydrolase, alkalinization of malonate, catalase, esculin hydrolysis, beta-galactosidase (ONPG), H2S
production, indole production, lysine decarboxylase, ornithine decarboxylase, oxidase, urease, Voges-Proskauer test, acid production
from adonitol, D-arabitol, L-arabinose, cellobiose, dulcitol, erythritol, fructose glycerol, i-inositol, lactose, D-mannitol, melibiose,
raffinose, ribose, L-rhamnose. sucrose, salicin, D-sorbitol, and D-xylose.
No utilization of L-arabinose, L-arbutin, cellobiose, D-galactose, alpha-melibiose, L-rhamnose, adonitol, maltitol, glycerol, D-
mannitol, sucrose, salicin, D-xylose, D-sorbitol, trans-aconitate, putrescine, propionate, adipate, 4-aminobutyrate, azelate, glutarate,
DL-3-hydroxybutyrate, itaconate, mesaconate, 2-oxoglutarate, suberate, beta-alanine, L-leucine, L-ornithine, L-phenylalanine, L-
tryptophan, 3-hydroxybenzoate, 4-hydroxybenzoate and phenylacetate.
(c) Costin Stoica
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