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Pseudomonas syringae subsp. savastanoi (ex Smith 1908) Janse 1982

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(ex Smith) Janse
ex Smith
Janse
1982
ICNP
Pseudomonas syringae subsp. savastanoi (ex Smith 1908) Janse 1982
subsp.
Pseudomonas syringae subsp. savastanoi

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Pseudomonas syringae subsp. savastanoi (ex Smith 1908) Janse 1982

Gram-negative, nonsporeforming rods with rounded ends, 0.3 to 0.7 by 1.0 to 1.8 pm, occurring singly or in pairs; motile by means of one to five polar flagella. Rather slow-growing, gray-white, smooth, glistening, raised and circular or slightly irregular to undulate colonies are produced on nutrient agar; levan negative or levan positive on nutrient-sucrose (5%) agar; produces a weak, blue-green fluorescent, diffusible pigment on King’s B medium; some strains produce a brown diffusiblepigment. Metabolism is respiratory. Oxidase negative, catalase positive. Acid is produced from D-( +)-galactose, glucose, D-( +)-ribose, sucrose (slow), D-( +)- xylose, and mannitol; no acid is produced from maltose, D-( +)-raffinose, erythritol, or salicin; alkali is produced from L-( +)-tartrate; esculin, arginine, gelatin, and starch are not hydrolyzed; generally, arbutin and casein are not hydrolyzed. Nitrates are not reduced. H2S is not produced from cysteine. No growth occurs in nutrient broth at 37°C or with 5% NaC1. Hypersensitivity is produced in tobacco leaves. The deoxyribonucleicacid contains 60 mol% guanine plus cytosine (3). Causes galls and wartlike excrescences on various species of Oleaceae and N. oleander L. Gall-forming isolates produce indolyl-acetic acid and cytokinin-like substances in vitro.
The following pathovars of P. syringae subsp. savastanoi are recognized: pathovar oleae, causing parenchymatic galls on various species of the Oleaceae (15, 16); pathovar nerii, causing parenchymaticgalls or wartlike excrescences on N. oleander L. and various species of the Oleaceae (14); and pathovar fraxini, causing wartlike excrescences on F. excelsior L. and 0.europea L. (2, 5 , 13).

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Pseudomonas syringae subsp. savastanoi (ex Smith 1908) Janse 1982
Pseudomonas syringae subsp. savastanoi (ex Smith 1908) Janse 1982
Pseudomonas syringae subsp. savastanoi (ex Smith 1908) Janse 1982
Pseudomonas syringae subsp. savastanoi Janse 1982
Pseudomonas syringae subsp. savastanoi (ex Smith 1908) Janse 1982
Pseudomonas syringae subsp. savastanoi (ex Smith 1908) Janse 1982
Pseudomonas syringae subsp. savastanoi (ex Smith 1908) Janse 1982
Pseudomonas syringae subsp. savastanoi (ex Smith 1908) Janse 1982
Pseudomonas syringae subsp. savastanoi (ex Smith 1908) Janse 1982

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64788e89-25d7-4b86-847f-2674e1debcd4
scientific name
Names_Fungi
29 August 2003
15 March 2013
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