Phylum Proteobacteria, Class Gammaproteobacteria, Order Enterobacteriales, Family Morganellaceae, Genus Xenorhabdus,
Xenorhabdus thuongxuanensis Kampfer et al. 2017.
Gram-negative rods, 1 x 2 µm. Motile. Non-spore-forming.
Colonies are yellowish, 2 mm in diameter after incubation on TSA at 28 ºC. Good
growth occurs after 48 h on NA, brain heart infusion agar, TSA, R2A agar and
MacConkey agar. Growth occurs on TSA at 10-37 ºC, but not at 39-40 ºC and above.
Isolated from Steinernema sangi collected from soil samples in Thuong Xuan, Thanh Hoa province, Vietnam.
- Kampfer P, Tobias NJ, Ke LP, Bode HB, Glaeser SP. Xenorhabdus thuongxuanensis sp. nov. and Xenorhabdus eapokensis sp.
nov., isolated from Steinernema species. Int J Syst Evol Microbiol 2017; 67:1107-1114.
Positive results for citrate (Simmons), acid production from D-glucose.
Can utilize as a sole source of carbon (weakly and after 7 days of incubation): acetate, N-acetylglucosamine, gluconate, D-glucose,
maltose, D-mannose, D-fructose, trehalose, fumarate, DL-lactate, pyruvate and L-histidine.
Negative results for arginine dihydrolase, catalase, H2S production, indole production, lysine decarboxylase, ornithine decarboxylase
(weak), aesculin hydrolysis, beta-galactosidase (ONPG), production of brown diffusible pigments on tyrosine agar, alkalinization of
malonate, oxidase, urease, acid production from adonitol, D-arabitol, L-arabinose, cellobiose, dulcitol, erythritol, fructose, gluconate,
i-inositol, lactose, D-mannose, maltose, D-mannitol, melibiose, methyl alpha-D-glucoside, raffinose, L-rhamnose, ribose, salicin,
sucrose D-sorbitol, trehalose and D-xylose.
No utilization of L-arabinose, L-arbutin, cellobiose, D-galactose, N-acetylgalactosamine, alpha-D-melibiose, L-rhamnose, adonitol,
maltitol, glycerol, D-mannitol, D-ribose, sucrose, salicin, D-xylose, i-inositol, D-sorbitol, cis-aconitate, trans-aconitate, putrescine,
propionate, adipate, 4-aminobutyrate, azelate, glutarate, DL-3-hydroxybutyrate, itaconate, mesaconate, 2-oxoglutarate, suberate,
citrate, mesaconate, L-alanine, L-serine, beta-alanine, L-aspartate, L-leucine, L-ornithine, L-phenylalanine, L-proline, L-tryptophan,
3-hydroxybenzoate, 4-hydroxybenzoate and phenylacetate.
(c) Costin Stoica