Journal of Phytopathology - Phytopathologische Zeitschrift (1996) 144, 437-440

R. Buonaurio, V.M. Stravato and C. Cappelli (1996)
Occurrence of Pseudomonas syringae pv. tomato race 1 in Italy on Pto gene-bearing tomato plants
Journal of Phytopathology - Phytopathologische Zeitschrift 144 (9-10), 437-440
Abstract: Bacterial speck symptoms on leaves of the tomato cuttivar Erminia F1 (Petoseed), heterozygous for the Pto resistant gene, were observed in June 1995 in Northern Italy. Using individual-lesion isolation, 8 bacterial isolates were obtained from the affected leaves, which were identified as Pseudomonas syringae pv. tomato by biochemical, physiological, nutritional and pathogenicity tests. When the differential cultivar Ontario 7710, homozygous for the Pto gene, was inoculated with the bacterial isolates, 4 of them provoked the typical bacterial speck symptoms and therefore belonged to race 1. This is the first occurrence of P. s ringae pv. tomato race 1 in Italy and the first time this race has been isolated on a Pto gene-bearing tomato cultivar grown in open field.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Roberto Buonaurio

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host
surveys/sampling/distribution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Pseudomonas syringae pv. tomato	Tomato (Solanum lycopersicum)	Italy
	Pseudomonas syringae