| Erwinia aphidicola |
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Legend: + positive 90-100%, - negative 90-100%, [+] positive 75-89%, [-] negative 75-89%, d positive 25-74% of strains
Differential characters:
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Pseudomonadota (Proteobacteria), Class Gammaproteobacteria, Order Enterobacterales, Family Erwiniaceae, Genus Erwinia,
Erwinia aphidicola Harada et al. 1998.
Erwinia aphidicola Harada et al. 1998.
Gram negative rods, 0.5-0.6 x 1.6-2.0 μm. Motile by peritrichous flagella.
Colonies on peptone-yeast extract agar are circular and smooth. Grows at 25, 30, and
35 ºC, but not at 42 ºC. Grows well on nutrient agar. Pigment is not produced.
35 ºC, but not at 42 ºC. Grows well on nutrient agar. Pigment is not produced.
Isolated from aphids ( Acyrthosiphon pisum).
Undetermined.
- J. G. Holt et al., 1994. Facultatively Anaerobic Gram-Negative Rods. Subgroup 1. Family Enterobacteriaceae. In: Begey’s Manual of
Determinative Bacteriology, 9th-edition, Williams & Wilkins, pp 175-189. - Don J. Brenner and J.J. Farmer III, 2001. Family I. Enterobacteriaceae. In: Bergey’s Manual of Systematic Bacteriology, Second
edition, Vol two, part B, George M. Garrity (Editor-in-Chief), pp 587-897. - Harada (H.), et al.: Erwinia aphidicola, a new species isolated from pea aphid, Acyrthosiphon pisum. J. Gen. Appl. Microbiol.,
1997, 43, 349-354.
Positive results for catalase, beta-galactosidase, nitrate reduction, Voges–Proskauer test, and acid production from adonitol,
amygdalin, arbutin, L-arabinose, cellobiose, erythritol, esculin, D-fructose, D-fucose, glycerol, D-galactose, D-gluconate, D-glucose,
beta-gentiobiose, inositol, 2- and 5-ketogluconate, D-lyxose, maltose, D-mannose, D-mannitol, melibiose, N-acetyl-D-glucosamine,
raffinose, L-rhamnose, D-ribose, salicin, sucrose, trehalose, D-xylitol, and D-xylose.
Can utilize citrate and malonate.
Negative results for DNase, H2S production, Indole production, arginine dihydrolase, lysine decarboxylase, ornithine decarboxylase,
oxidase, urease, acid production from D-arabinose, dulcitol, glycogen, inulin, lactose, melezitose, beta-methyl-D-glucoside, alpha-
methyl-D-mannoside, alpha-methyl-D-glucoside, D-sorbose, starch, D-tagatose, D-turanose, and L-xylose
amygdalin, arbutin, L-arabinose, cellobiose, erythritol, esculin, D-fructose, D-fucose, glycerol, D-galactose, D-gluconate, D-glucose,
beta-gentiobiose, inositol, 2- and 5-ketogluconate, D-lyxose, maltose, D-mannose, D-mannitol, melibiose, N-acetyl-D-glucosamine,
raffinose, L-rhamnose, D-ribose, salicin, sucrose, trehalose, D-xylitol, and D-xylose.
Can utilize citrate and malonate.
Negative results for DNase, H2S production, Indole production, arginine dihydrolase, lysine decarboxylase, ornithine decarboxylase,
oxidase, urease, acid production from D-arabinose, dulcitol, glycogen, inulin, lactose, melezitose, beta-methyl-D-glucoside, alpha-
methyl-D-mannoside, alpha-methyl-D-glucoside, D-sorbose, starch, D-tagatose, D-turanose, and L-xylose
(c) Costin Stoica
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