Journal of Plant Pathology (2006) 88, p. S51 (Moretti et al.)

C. Moretti, S. Silvestri and R. Buonaurio (2006)
Nitric oxide releasing compounds systemically protect Arabidopsis thaliana plants from Tobacco necrosis virus
Journal of Plant Pathology 88 (3, Special Issue), S51-S51
S.I.Pa.V XIII National Meeting - Foggia, 12-16 September 2006 - Poster
Abstract: The ability of nitric oxide releasing compounds, sodium nitroprusside (SNP) and S-nitrosocysteine (CysNO), to induce resistance in Arabidopsis thaliana plants (Col-0) to Tobacco necrosis virus (TNV) was evaluated. SNP and CysNO were able to systemically and significantly (P<0.05) protect Arabidopsis plants against TNV, with protection levels of 63 and 71%, respectively. A protection level of 66% was obtained with the SAR inducer acibenzolar-S-methyl as comparison. To verify whether the protection exerted by SNP and CysNO is mediated by salicylic acid, transgenic A. thaliana plants expressing the nahG gene were used. Reduced protection levels (38%) were observed in NahG Arabidopsis plants treated with SNP or CysNO in comparison with wild-type plants. It is noteworthy that untreated NahG plants are less susceptible to TNV infection than wild-type plants. Our results suggest that the protection induced by the nitric oxide releasing compounds used are in part mediated by salicylic acid.
Database assignments for author(s): Chiaraluce Moretti, Roberto Buonaurio

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Alphanecrovirus nicotianae