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

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Introducing the virus coat protein gene into plant cells can confer virus resistance by interfering with the virus's ability to replicate and spread. Specifically, for the tobacco mosaic virus, certain variants of the coat protein inhibit the mobilization protein (MP), which is crucial for the virus's transmission between cells. This inhibition slows down the virus's spread, effectively providing the plant with a defense mechanism against infection. The referenced study provides detailed insights into these mechanisms and the effectiveness of this genetic modification in enhancing plant resistance to viral pathogens.
chound
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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?
 
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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.
 

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