| Xenorhabdus ehlersii |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Proteobacteria, Class Gammaproteobacteria, Order Enterobacteriales, Family Morganellaceae, Genus Xenorhabdus,
Xenorhabdus ehlersii Lengyel et al. 2005.
Xenorhabdus ehlersii Lengyel et al. 2005.
Gram-negative rods, 3.0-3.1 x 0.75 µm.
Colonies on nutrient agar are circular, convex, undulate, granular, and yellowish,
3.0-3.5 mm in diameter; on NBTA colonies are red. Maximum growth temperature: 36
ºC in NB and 41 ºC in TSB.
3.0-3.5 mm in diameter; on NBTA colonies are red. Maximum growth temperature: 36
ºC in NB and 41 ºC in TSB.
Isolated from Steinernema serratum, Southern China.
Undetermined.
- Lengyel K, Lang E, Fodor A, Szallas E, Schumann P, Stackebrandt E. Description of four novel species of Xenorhabdus, family
Enterobacteriaceae: Xenorhabdus budapestensis sp. nov., Xenorhabdus ehlersii sp. nov., Xenorhabdus innexi sp. nov., and
Xenorhabdus szentirmaii sp. nov. Syst Appl Microbiol 2005; 28:115-122. - Tailliez P, Pages S, Ginibre N, Boemare N. New insight into diversity in the genus Xenorhabdus, including the description of ten
novel species. Int J Syst Evol Microbiol 2006; 56:2805-2818.
Positive results for gelatin hydrolysis and Tween 20, 40, 60 and 80 hydrolysis, acid
production from esculin, fructose, glucose, glycerol, mannose, and N-acetylglucosamine.
Can utilize (API 20 NE) glycerol, glucose, mannose and N-acetylglucosamine, maltose, ribose, fructose, trehalose, gluconate,
esculin, malate, and citrate. No utilization of inositol.
Can utilize (Biolog GN) glycogen, N-acetyl-D-glucosamine, maltose, D-mannose, acetic acid, cs-aconitic acid, citric acid, D-gluconic
acid, p-hydroxy-phenyl acetic acid, alpha-keto glutaric acid, D,L lactic acid, bromo-succinic acid, alanin-amide, L-alanyl-glycine, L-
alanine, glycyl-L-aspartic acid, glycyl-L-glutamic acid, L-proline, D-serine, uridine, glucose-1-phosphate, dextrin, alpha-D-glucose, D-
trehalose, methyl-pyruvate, succinic acid, L-aspartic acid, L-asparagine, L-glutamic acid, L-serine, glycerol, DL-alpha-glycerol
phosphate, inosine and glucose-6-phosphate. All the other Biolog GN tests are negative.
Negative results for indole production, nitrate reduction starch hydrolysis, phenylalanine deaminase, and phosphatase, acid
production from gluconate and inositol. According to the API 50CH kit the majority of fermentation tests were negative and they were
therefore not shown in the original paper.
Variable results for citrate utilization, esculin hydrolysis, DNAse, lecithinase,acid production from 5-ketogluconate, maltose, ribose
and trehalose.
Variable assimilation of fructose, ribose, cis-aconitate, D-gluconate, citrate, putrescine, lactate, histidine, succinate, D-glucosamine,
D-alanine, propionate and tyrosine.
production from esculin, fructose, glucose, glycerol, mannose, and N-acetylglucosamine.
Can utilize (API 20 NE) glycerol, glucose, mannose and N-acetylglucosamine, maltose, ribose, fructose, trehalose, gluconate,
esculin, malate, and citrate. No utilization of inositol.
Can utilize (Biolog GN) glycogen, N-acetyl-D-glucosamine, maltose, D-mannose, acetic acid, cs-aconitic acid, citric acid, D-gluconic
acid, p-hydroxy-phenyl acetic acid, alpha-keto glutaric acid, D,L lactic acid, bromo-succinic acid, alanin-amide, L-alanyl-glycine, L-
alanine, glycyl-L-aspartic acid, glycyl-L-glutamic acid, L-proline, D-serine, uridine, glucose-1-phosphate, dextrin, alpha-D-glucose, D-
trehalose, methyl-pyruvate, succinic acid, L-aspartic acid, L-asparagine, L-glutamic acid, L-serine, glycerol, DL-alpha-glycerol
phosphate, inosine and glucose-6-phosphate. All the other Biolog GN tests are negative.
Negative results for indole production, nitrate reduction starch hydrolysis, phenylalanine deaminase, and phosphatase, acid
production from gluconate and inositol. According to the API 50CH kit the majority of fermentation tests were negative and they were
therefore not shown in the original paper.
Variable results for citrate utilization, esculin hydrolysis, DNAse, lecithinase,acid production from 5-ketogluconate, maltose, ribose
and trehalose.
Variable assimilation of fructose, ribose, cis-aconitate, D-gluconate, citrate, putrescine, lactate, histidine, succinate, D-glucosamine,
D-alanine, propionate and tyrosine.
(c) Costin Stoica
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