How Do Virus Coat Protein Genes Make Plant Cells Resistant to Viruses?

[chound]

My Bio textbook says that, by introducing the virus coat protein gene into a plant cell the cell becomes virus resistant. How is that possible?

 

[jim mcnamara]

For tobacco mosaic virus - this paper explains results:
http://www.pnas.org/cgi/content/full/99/6/3645

In this case, the presence of some variants of the coat protein inhibit the production/effectiveness of the MP - mobilization protein - which in turn slows down the transmission of the virus from cell to cell.