Phytoparasitica (1997) 25, 227-228

Brandt G. Cassidy, Stanislaw Flasinski, M.R. Hajimorad and Varsha Wesley (1997)
A comparison of different pathogen-derived resistances to virus infection
Phytoparasitica 25 (3), 227-228
The Xth International Congress of Virology, August 11-16, 1996, Binyanei haOoma, Jerusalem, Israel, poster
Abstract: Plants resistant to viral infections can be developed utilizing a number of strategies. Originally, the coat protein (CP) of a virus was introduced into a plant to protect it from infection by the homologous virus. We have introduced the CP and several nonstructural genes of peanut stripe potyvirus (PStV) into Nicotiana benthamiana to develop resistance to PStV and to investigate the mechanism(s) involved in the resistance. We have identified two types of resistance, constitutive and inducible, with constructs engineered to express the CP, CI, NIa and NIb of PStV. These resistant phenotypes involve an increase in transgene mRNA turnover that we believe results in the resistance phenotype. We have also identified a third resistant phenotype using CP gene constructs that lack the original translation initiation site. This resistance does not involve a rapid turnover of the mRNA and appears to correlate with the highest accumulation of transgene mRNA. The different types of pathogen-derived resistance were compared.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): M. Reza Hajimorad

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Bean common mosaic virus