Journal of Plant Pathology (2007) 89, p. S62 (Silvestri et al.)

S. Silvestri, C. Moretti, P. Ferrante and R. Buonaurio (2007)
Evaluation of some chemicals as inducers of resistance in tomato plants against Pseudomonas syringae pv. tomato
Journal of Plant Pathology 89 (3, Suppl.), S62-S62
Poster Presentation at S.I.Pa.V XIV National Meeting - Perugia, Italy 19-21 Sept. 2007
Abstract: Potassium monophosphate, potassium diphosphate, potassium permanganate, calcium oxide and potassium phophate buffer (pH 7) as well as acibenzolar-S-methyl were tested for their capacity to suppress tomato bacterial speck caused by Pseudomonas syringae pv. tomato. Basal leaves of tomato plants (cv. PS1296) were sprayed with the above mentioned chemicals and the upper leaves were inoculated with a suspension of the bacterium at 10⁶ cfu ml^-1, three days after the treatments. Among the chemicals used, potassium phosphate buffer treatment significantly and systemically protected tomato plants from the disease though to at lesser extent respect to the acibenzolar-S-methyl. The protective effect was expressed through the reduction of the leaf surface infected, number of bacterial spots per leaflet, spot diameter and bacterial growth in planta. Further experiments are in progress to establish whether the resistance is mediated by salicylic acid.
Database assignments for author(s): Chiaraluce Moretti, Roberto Buonaurio, Patrizia Ferrante

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host
control - general

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Pest and/or beneficial records:

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