Carbohydrates and resistance to <Emphasis Type="Italic">Phytophthora infestans</Emphasis> in potato plants |
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Authors: | Evers Danièle Jacques Dommes Jean-François Hausman |
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Institution: | 1.CRP-Gabriel Lippmann, Cellule CREBS,Luxembourg,Grand-Duchy of Luxembourg;2.Department of Life Sciences,University of Liège,Liège,Belgium |
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Abstract: | Plants generally deal with biotic or abiotic stresses by altering components as for example cell wall constituents and metabolites.
Infection by Phytophthora infestans, the causal agent of late blight, constitutes a stress condition for the plants and they react to it with changes arising
in their metabolism depending on the resistance level of the plants. The present work compares two potato hybrids differing
in their level of horizontal resistance to late blight. Carbohydrate content in stems and leaves of infected and uninfected
plants was determined by HPLC. Some carbohydrates accumulated in the stems of the resistant hybrid infected by P. infestans, whereas they remained unchanged in the susceptible hybrid. On the other hand, in the leaves, these carbohydrates accumulated
only in the infected susceptible hybrid. |
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Keywords: | Carbohydrates horizontal resistance HPLC late blight Phytophthora infestans potato Solanum phureja |
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