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Potato phytoalexin elicitors in Phytophthora infestans spore germination fluids |
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| Authors: | Stanley Osman Robert Moreau |
| Institution: | Eastern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, Philadelphia, PA 19118, U.S.A. |
| Abstract: | Media from germinating spores of Phytophthora infestans contain substances that elicit accumulation of the phytoalexin rishitin in potato tuber slices. Gel permeation chromatography of media extracts indicates the presence of several substancec. The active substances can be precipitated with ammonium sulfate, are heat labile and pronase-sensitive, which suggests that they are proteins. |
| Keywords: | phytoalexin rishitin potato ammonium sulfate FAMES fatty acid methyl esters GC/MS gas chromatography-mass spectrometry GPC gel permeation chromatography TLC thin-layer chromatography |
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