Journal of General Virology (1997) 78, 1241-1246

P. Seppanen, R. Puska, J. Honkanen, L.G. Tyulkina, O. Fedorkin, S.Yu. Morozov and J.G. Atabekov (1997)
Movement protein-derived resistance to triple gene block-containing plant viruses
Journal of General Virology 78 (6), 1241-1246
Abstract: Two mutant potato virus X (PVX) movement protein (MP) genes (m 12K-Sal and m 12K-Kpn) were obtained by inserting specific linkers at the boundary between the N-terminal hydrophobic and putative transmembrane segment, and the central invariant hydrophilic region of the respective 12 kDa, 12K, triple gene block (TGB) protein. Several transgenic potato lines which expressed m 12K-Sal or m 12K-Kpn to different degrees were resistant to infection by PVX, potato aucuba mosaic potexvirus and the carlaviruses potato virus M and S over a wide range of inoculum concentrations (3-300 micrograms/ml). However, they were not resistant to potato virus Y, which lacks a TGB protein. We suggest that the resistance of m 12K-Sal and m 12K-Kpn transgenic potato lines is MP- derived and not RNA-mediated.
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Database assignments for author(s): Sergey Yu. Morozov, Joseph G. Atabekov

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

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Potato virus X	Potato (Solanum tuberosum)
	Potato virus S	Potato (Solanum tuberosum)
	Potato virus M	Potato (Solanum tuberosum)
	Potato aucuba mosaic virus	Potato (Solanum tuberosum)