title: Activity of drimane antifeedants and related compounds against aphids, and comparative biological effects and chemical reactivity of (-)- and (+)-polygodial.
abstract: A series of natural drimanes and related synthetic compounds was tested for antifeedant activity against aphids. Polygodial and warburganal were the most active. The synthetic compounds methyl 9α-hydroxydrimenoate and 9α-hydroxydrimenal, although active against lepidopteran larvae, were inactive against aphids. Natural (-)-polygodial and the synthetic (+) isomer showed similar levels of activity as aphid antifeedants and in phytotoxicity, fish toxicity, and human taste tests, but reacted at different rates with enantiomers of 1-phenylethylamine.
authors.affiliation: Institute of Pharmacognosy, Tokushima Bunri University, Yamashiro-cho, 770, Tokushima, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Asakawa
authors.forename: G W
authors.initials: GW
authors.lastname: Dawson
authors.forename: D C
authors.initials: DC
authors.lastname: Griffiths
authors.forename: J Y
authors.initials: JY
authors.lastname: Lallemand
authors.forename: S V
authors.initials: SV
authors.lastname: Ley
authors.forename: K
authors.initials: K
authors.lastname: Mori
authors.forename: A
authors.initials: A
authors.lastname: Mudd
authors.forename: M
authors.initials: M
authors.lastname: Pezechk-Leclaire
authors.forename: J A
authors.initials: JA
authors.lastname: Pickett
authors.forename: H
authors.initials: H
authors.lastname: Watanabe
authors.forename: C M
authors.initials: CM
authors.lastname: Woodcock
authors.forename: Z
authors.initials: Z
authors.lastname: Zhong-Ning