Fitopatologia Brasileira (2005) 30, 643-646

Jânia L.S. Bentes and Kiyoshi Matsuoka (2005)
Localização de peróxido de hidrogênio durante a resposta de defesa de tomateiro contra Stemphylium solani
[Localization of hydrogen peroxide during defense response of tomato against Stemphylium solani]
Fitopatologia Brasileira 30 (6), 643-646
Abstract: Two tomato (Lycopersicon esculentum) cultivars were studied due to their reaction with cerium perhydroxide, verifying H₂O₂ produced in tomato plants boyh resistant and susceptible to Stemphylium solani. There was an accumulation of cerium perhydroxide on the wall of mesophyll cells in contact with the pathogen hyphae. Different reactions were not found int the two tomato cultivars concerning H₂O₂ accumulation. Since cerium perhydroxide was detected on negative control as well, it is suggested that H₂O₂ may possibly not participate in the resistance of c.v. 'Motelle' to S. solani, in terms of cell wall buttressing.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
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Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Stemphylium solani	Tomato (Solanum lycopersicum)