Isolation of Nematicidal Polyacetylenes from Carthamus tinctorius L. |
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| Authors: | Shigefumi Kogiso Kojiro Wada Katsura Munakata |
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| Institution: | Faculty of Agriculture, Nagoya University, Nagoya, Japan |
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| Abstract: | Two nematicidal polyacetylenes, 3-cis,11-trans- and 3-trans,11-trans-trideca-1,3,11-triene-5,7,9-triyne, were isolated from flowers of Carthamus tinctorius L., by column chromatography and high speed liquid chromatography under the dark condition.The nematicidal activities of 3-cis,11-trans- and 3-trans,11-trans-isomer to Aphelenchoides besseyi were 80% at 10 ppm and 95% at 1 ppm, respectively. |
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