Methyl Linoleate Dimer and Methyl 8-Phenyloctanoate in the Copper-catalyzed Decomposition Products of Methyl Linoleate Hydroperoxides |
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| Authors: | Makio Morita Masako Tokita |
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| Institution: | Department of Food and Nutrition, Japan Women’s University, 2–8–1 Mejirodai, Bunkyo-ku, Tokyo 112, Japan |
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| Abstract: | Cochliophilin A (5-hydroxy-6,7-methylenedioxyflavone, 1), known as a host-specific attractant towards the zoospores of Aphanomyces cochlioides, a cause of root rot and damping-off diseases of Chenopodiaceae, was found in the Amaranthaceae plant, Celosia cristata, that is susceptible to the pathogen. The content of 1 in Celosia seedlings was quantified as 1.4 μg/g fresh weight. A new isoflavone, cristatein (5-hydroxy-6-hydroxymethyl-7,2′-dimethoxyisoflavone, 2), and five known flavonoids were also identified. |
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| Keywords: | host-specific zoospore attractant cochliophilin A flavonoids Celosia cristata Amaranthaceae |
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