Fusarium病菌培養ろ液より抽出されたロビンネダニ誘引物質

概要

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Attractants in culture filtrates of Fusarium axysporum allii for Rhizoglyphus robini were isolated and identified by chemical analysis and bioassay under laboratory conditions. Culture filtrates were steam-distilled and the distillates, after saturation with NaCl, were extracted with ether. Mites were attracted to these ether extracts. GC-MS analysis showed that the extracts mainly consisted of ethanol, n-propanol, iso-butanol, 2-methyl-1-butanol, iso-pentanol and 2-phenylethanol. All except the last two compounds showed various degrees of attractiveness individually. Mites were further attracted to the mixture of these four alcohols in the ratio corresponding to that of the natural composition, whereas mixture in equal parts resulted in a loss of the attractiveness. Iso-pentanol and 2-phenylethanol did not attract mites and the latter further inhibited the attractiveness to ethanol when mixed together.
日本応用動物昆虫学会の論文
1988-02-25