Incorporation of Serine-3-14C into Sphingolipid by Rat Liver Particulate |
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Authors: | Yasuhiko Fujino Masuo Nakano |
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Affiliation: | Department of Agricultural Chemistry, Obihiro Zootechnical University, Obihiro, Hokkaido |
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Abstract: | Four semi-synthetic and fourteen quassinoids were tested for their antifeedant and insecticidal activity against 3rd instar larvae of the diamondback moth (Plutella xylostella). In this quassinoid series, isobrucein-B was the most potent compound in both assays. Chemical conversion of the methoxy and/or methylenedioxy groups in the A and C rings to hydroxy groups among these quassinoids resulted in decreased activity. |
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