Abstract
The interaction between Phytophthora infestans and potatoes has been considered to be an example of a gene-for-gene interaction. There is a series of major genes for resistance in the potato which are expressed in both tubers and leaves which confer resistance against all races of the fungus except those containing specific virulence genes which overcome the corresponding resistance genes. Major gene resistance or incompatibility is characterized by a hypersensitive response in which the first observable phenomenon is cell death. This is followed in tuber slices or discs by biochemical reactions which include the accumulation of sesquiterpenoid phytoalexins such as rishitin and phytuberin [1], the accumulation of insoluble high molecular weight phenolic compounds [2] and the encasement of haustoria with callose-like material [3]. In compatible reactions between a virulent race of the fungus and tuber discs of a susceptible cultivar hypersensitive cell death does not occur; the other biochemical reactions occur more slowly and to a more limited extent.
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References
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© 1986 Springer-Verlag Berlin Heidelberg
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Keenan, P.J., Ellis, J.S., Rathmell, W.G., Friend, J. (1986). Carbohydrate and Lipid-Containing Elicitors from Phytophthora infestans. Do They Have a Common Mechanism of Action?. In: Bailey, J.A. (eds) Biology and Molecular Biology of Plant-Pathogen Interactions. NATO ASI Series, vol 1. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-82849-2_15
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DOI: https://doi.org/10.1007/978-3-642-82849-2_15
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