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Constantin, E. C.; Cleenwerck, I.; Maes, M.; Baeyen, S.; Van Malderghem, C.; De Vos, P.; Cottyn, B. 2016: Genetic characterization of strains named as Xanthomonas axonopodis pv. dieffenbachiae leads to a taxonomic revision of the X. axonopodis species complex. Plant Pathology 65(5): 792-806.

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Constantin, E. C.; Cleenwerck, I.; Maes, M.; Baeyen, S.; Van Malderghem, C.; De Vos, P.; Cottyn, B. 2016: Genetic characterization of strains named as Xanthomonas axonopodis pv. dieffenbachiae leads to a taxonomic revision of the X. axonopodis species complex. Plant Pathology 65(5): 792-806.
10.1111/ppa.12461
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The characteristics are as described for the genus (Vauterin et al., 1995) extended with data from this study. Using the Biolog GEN III MicroPlate system α-d-glucose, α-keto-glutaric acid (weakly), pH 6, 1% NaCl are oxidized, but the following substrates are not: d-maltose, d-turanose, stachyose, d-raffinose, α-d-lactose, d-melibiose, β-methyl-d-glucoside, d-salicin, N-acetyl-β-d-mannosamine, N-acetyl-β-d-galactosamine, N-acetyl-neuraminic acid, l-rhamnose, inosine, d-sorbitol, d-mannitol, d-arabitol, myo-inositol, glycerol, d-fructose-6-PO4, d-serine, gelatin, l-arginine, l-aspartic acid, l-histidine, l-pyroglutamic acid, l-serine, d-galacturonic acid, l-galactonic acid lactone, d-gluconic acid, d-glucuronic acid, quinic acid, d-saccharic acid, p-hydroxy-phenylacetic acid, methyl pyruvate, d-lactic acid methyl ester, d-malic acid, γ-amino-butyric acid, α-hydroxy-butyric acid, β-hydroxy-d,l-butyric acid, propionic acid, fomnic acid, pH 5, 4% NaCl, 8% NaCl, fusidic acid, d-serine, troleandomycin, rifamycin SV, minocycline, guanidine HCl, niaproof 4, vancomycin, lithium chloride, potassium tellurite, sodium butyrate, sodium bromate. The oxidization of the following substrates is strain-dependent: N-acetyl-d-glucosamine (65% of the strains), d-glucose-6-PO4 (30% of the strains), l-lactic acid (30% of the strains), nalidixic acid (65% of the strains) and aztreonam (30% of the strains). The fatty acids C15:0 iso, summed feature 3 (C16:1 ω7c / C15:0 iso 2-OH) and C17:0 iso are present in significant amounts in cells grown on TSA (BBL 11768) for 24 h under aerobic conditions. Xanthomonas axonopodis can be differentiated from the phylogenetic close Xanthomonas species by MLSA (Ah-You et al., 2009; this study).
The type strain is LMG 982T = NCPPB 457T.
The characteristics are as described for the genus (Vauterin et al., 1995) extended with data from this study. Using the Biolog GEN III MicroPlate system dextrin, N-acetyl-d-glucosamine, α-d-glucose, d-galactose, d-fructose-6-PO4, α-keto-glutaric acid, pH 6 are oxidized, but the following substrates are not: d-turanose, stachyose, α-d-lactose, β-methyl-d-glucoside, N-acetyl-β-d-galactosamine, N-acetyl-neuraminic acid, d-fucose, l-rhamnose, d-mannitol, d-serine, p-hydroxyphenylacetic acid, d-malic acid, γ-amino-butyric acid, β-hydroxy-d,l-butyric acid, fomnic acid, 4% NaCl, 8% NaCl, fusidic acid, d-serine, troleando-mycin, guanidine HCl, lithium chloride. The oxidization of the following substrates is strain-dependent: d-maltose (20% of the strains), d-melibiose (40% of the strains), glycerol (80% of the strains), d-glucose-6-PO4 (40% of the strains), gelatin (80% of the strains), d-saccharic acid (40% of the strains), l-lactic acid (40% of the strains), rifamicin SV (80% of the strains), nalidixic acid (20% of the strains) and aztreonam (40% of the strains). The fatty acids C15:0 iso and summed feature 3 (C16:1 ω7c/C15:0 iso 2-OH) are present in significant amounts in cells grown on TSA (BBL 11768) for 24 h under aerobic conditions. Xanthomonas citri can be differentiated from the phylogenetic close Xanthomonas species by MLSA (Ah-You et al., 2009; this study).
The type strain is LMG 9322T = ICPB 10518T.
Description of Schaad et al. (2006) extended with the description of the species (this study).
The pathotype strain of X. citri pv. citri (LMG 682) and the type strain of X. citri subsp. citri (LMG 9322) are members of the same taxon (this study). Future pathogenicity studies should clarify if the type strain of X. citri subsp. citri can be classified in this pathovar.
Pathotype strain: LMG 682; NCPPB 409.
Description of Schaad et al. (2006) extended with the description of the species (this study).
The pathovar contains both the non-fuscous strains (X. axonopodis pv. phaseoli GL2 & GL3) and the fuscous strains (X. fuscans subsp. fuscans).
The pathotype strain is the type strain of X. fuscans subsp. fuscans: LMG 826; NCPPB 381.
The characteristics are as described for the genus (Vauterin et al., 1995) extended with data from this study. Using the Biolog GEN III MicroPlate system dextrin, d-maltose, d-cellobiose, gentiobiose, sucrose, d-melibiose, N-acetyl-d-glucosamine, α-d-glucose, d-mannose, d-fructose, d-galactose, l-fucose, glycerol, d-fructose-6-PO4, l-glutamic acid, citric acid, α-keto-glutaric acid, l-malic acid, acetic acid, pH 6, 1% NaCl, 1% sodium lactate, lincomycin are oxidized, but the following substrates are not: stachyose, N-acetyl-neuraminic acid, d-sorbitol, d-mannitol, d-serine, p-hydroxy-phenylacetic acid, γ-amino-butyric acid, β-hydroxy-d,l-butyric acid, 8% NaCl, potassium tellurite. The oxidization of the following substrates is strain-dependent: d-glucose-6-PO4 (50% of the strains), gelatin (80% of the strains), d-saccharic acid (20% of the strains), l-lactic acid (30% of the strains), rifamicin SV (65% of the strains), nalidixic acid (65% of the strains) and aztreonam (65% of the strains). The fatty acids C15:0 iso and summed feature 3 (C16:1 ω7c/C15:0 iso 2-OH) are present in significant amounts in cells grown on TSA (BBL 11768) for 24 h under aerobic conditions. Xanthomonas euvesicatoria can be differentiated from the phylogenetic close Xanthomonas species by MLSA (Ah-You et al., 2009; this study).
The type strain is LMG 27970T = NCPPB 2968T.
The characteristics are as described for the genus (Vauterin et al., 1995) extended with data from this study. Using the Biolog GEN III MicroPlate system dextrin, d-trehalose, d-cellobiose, gentiobiose, sucrose, N-acetyl-d-glucosamine, α-d-glucose, d-mannose, d-fructose, d-galactose, d-fructose-6-PO4, l-glutamic acid, citric acid, acetoacetic acid, pH 6, lincomycin, tetrazolium blue, rifamicin SV, nalidixic acid, aztreonam are oxidized, but the following substrates are not: stachyose, d-raffinose, α-d-lactose, β-methyl-d-glucoside, N-acetyl-neuraminic acid, d-sorbitol, d-mannitol, l-histidine, l-pyroglutamic acid, d-gluconic acid, quinic acid, d-saccharic acid, γ-amino butyric acid, α-hydoxy-butyric acid, β-hydoxy-d,l-butyric acid, pH 5, 4% NaCl, 8% NaCl, minocycline. The oxidization of the following substrates is strain-dependent: d-maltose (75% of the strains), d-melobiose (50% of the strains), glycerol (75% of the strains), d-glucose-6-PO4 (75% of the strains), gelatin (75% of the strains), l-lactic acid (25% of the strains). The fatty acids C15:0 iso and summed feature 3 (C16:1 ω7c/C15:0 iso 2-OH) are present in significant amounts in cells grown on TSA (BBL 11768) for 24 h under aerobic conditions. Xanthomonas phaseoli can be differentiated from the phylogenetic close Xanthomonas species by MLSA (Ah-You et al., 2009; this study).
The type strain is LMG 29033 = ATCC 49119
Description of Vauterin et al. (1995) extended with the description of the species (this study).
The pathotype strain of X. axonopodis pv. phaseoli (LMG 7455) and the type strain of X. phaseoli (ATCC 49119) are members of the same taxon (this study). Future pathogenicity studies should clarify if the type strain of X. phaseoli can be classified in this pathovar. This pathovar includes only the strains pathogenic to bean classified in X. axonopodis (subgroup 9.4 of Rademaker et al., 2005).
Pathotype strain: LMG 7455; NCPPB 3035. [ICMP 5834]

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7 April 2020
24 October 2023
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