Archives of Virology (2003) 148, 1017-1026

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A. Honda, H. Takahashi, T. Toguri, T. Ogawa, S. Hase, M. Ikegami and Y. Ehara (2003)
Activation of defense-related gene expression and systemic acquired resistance in Cucumber mosaic virus-infected tobacco plants expressing the mammalian 2'5'oligoadenylate system
Archives of Virology 148 (5), 1017-1026
Abstract: Tobacco plants expressing the mammalian 2'5'oligoadenylate system (2-5A system) exhibit resistance to cucumber mosaic virus (CMV). Here, to characterize the molecular aspect of the resistance to CMV in 2-5A system-expressing tobaccos, the activation of defense-related genes and systemic acquired resistance (SAR) as the markers for the hypersensitive resistance (HR), were elucidated. Northern hybridization analysis indicated that the expression of four pathogenesis-related (PR) protein genes and five HR-related genes were induced in CMV-infected tobaccos expressing 2-5A system. Furthermore, the induction of SAR against Pseudomonas syringae pv. tabaci as second challenge, was observed on CMV-inoculated tobaccos expressing 2-5A system. These results suggested that the resistance to CMV in tobacco expressing 2-5A system is associated with the establishment of an HR-like response.
(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): Hideki Takahashi

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host
molecular biology - genes


Pest and/or beneficial records:

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


Cucumber mosaic virus Tobacco (Nicotiana tabacum)