| Erwinia pyrifoliae |
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 pyrifoliae Kim et al. 1999.
Erwinia pyrifoliae Kim et al. 1999.
Gram negative, straight bacilli, motile by peritrichous flagella. Non-spore-forming.
Colonies on YPDA medium,after 48 h at 28 ºC, are 2 mm, circular white, well-domed
and opaque. Facultatively anaerobic.
and opaque. Facultatively anaerobic.
Isolated from necrotic symptoms of leaves and branches of Pyrus pyrifolia cv. ' Shingo '.
Produces leaf and steb blight of pears.
- 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. - Kim (W.S.), Gardan (L.), Rhim (S.L.) and Geider (K.): Erwinia pyrifoliae sp. nov., a novel pathogen that affects Asian pear trees
(Pyrus pyrifolia Nakai). Int. J. Syst. Bacteriol., 1999, 49, 899-906.
Positive results for catalase, Voges-Proskauer test (weakly), acid production from
glucose (without gas), mannitol, sorbitol, and saccharose.
Can utilize as sole sources of carbon and energy : D-fructose, D-galactose, D-trehalose, saccharose, methyl D-glucopyranoside,
D-ribose, L-arabinose, glycerol, myo-inositol, D-mannitol, D-sorbitol, L-malate, N-acetyl-D-glucosamine, D-gluconate, succinate,
fumarate, L-glutamate, and L-proline
Negative results for arginine dihydrolase, indole production, lysin decarboxylase, ornithine decarboxylase, phenylalanine deaminase,
pectinase, oxidase, urease, acid production from inulin, lactose, methyl alpha-glucoside, melibiose, D-arabitol, D-arabinose or
raffinose.
No utilization of D-mannose, D-sorbose, alpha-D-melibiose, D-raffinose, maltotriose, maltose, alpha-lactose, lactulose, methyl
beta-galactopyranoside, D-cellobiose, beta-gentiobiose, aesculin, D-xylose, palatinose, alpha-L-rhamnose, alpha-L-fructose,
D-melibiose, D- and L-arabitol, xylitol, dulitol, D-tagatose, maltitol, D-turanose, adonitol, hydroxyquinoline beta-glucuroside, 3-methyl
D-glucopyranoside, D-saccharate, mucate, L- and D-tatrate, mesotartrate, D-malate, trans-aconitate, tricarballylate, D-glucuronate,
D-galacturonate, keto-D-gluconate, L-tryptophan, phenylacetate, protocatechuate, phydroxybenzoate, quinate, m-hydroxybenzoate,
benzoate, phenylpropionate, m-coumarate, trigonelline, betaine, putrescine, aminobutyrate, histamine, DLlactate, caprate, caprylate,
L-histidine, glutarate, DLglycerate, aminovalerate, ethanolamine, tryptamine, itaconate, hydroxybutyrate, D-alanine, malonate,
propionate, L-tyrosine, and ketoglutarate.
glucose (without gas), mannitol, sorbitol, and saccharose.
Can utilize as sole sources of carbon and energy : D-fructose, D-galactose, D-trehalose, saccharose, methyl D-glucopyranoside,
D-ribose, L-arabinose, glycerol, myo-inositol, D-mannitol, D-sorbitol, L-malate, N-acetyl-D-glucosamine, D-gluconate, succinate,
fumarate, L-glutamate, and L-proline
Negative results for arginine dihydrolase, indole production, lysin decarboxylase, ornithine decarboxylase, phenylalanine deaminase,
pectinase, oxidase, urease, acid production from inulin, lactose, methyl alpha-glucoside, melibiose, D-arabitol, D-arabinose or
raffinose.
No utilization of D-mannose, D-sorbose, alpha-D-melibiose, D-raffinose, maltotriose, maltose, alpha-lactose, lactulose, methyl
beta-galactopyranoside, D-cellobiose, beta-gentiobiose, aesculin, D-xylose, palatinose, alpha-L-rhamnose, alpha-L-fructose,
D-melibiose, D- and L-arabitol, xylitol, dulitol, D-tagatose, maltitol, D-turanose, adonitol, hydroxyquinoline beta-glucuroside, 3-methyl
D-glucopyranoside, D-saccharate, mucate, L- and D-tatrate, mesotartrate, D-malate, trans-aconitate, tricarballylate, D-glucuronate,
D-galacturonate, keto-D-gluconate, L-tryptophan, phenylacetate, protocatechuate, phydroxybenzoate, quinate, m-hydroxybenzoate,
benzoate, phenylpropionate, m-coumarate, trigonelline, betaine, putrescine, aminobutyrate, histamine, DLlactate, caprate, caprylate,
L-histidine, glutarate, DLglycerate, aminovalerate, ethanolamine, tryptamine, itaconate, hydroxybutyrate, D-alanine, malonate,
propionate, L-tyrosine, and ketoglutarate.
(c) Costin Stoica
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