Isolation of an Antifeedant Compound from Andrographis paniculata (Acanthaceae) against the Diamondback Moth, Plutella xylostella (Lepidoptera: Yponomeutidae)
スポンサーリンク
概要
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Guided by bioassay test results, we have isolated an antifeedant compound against the diamondback moth, Plutella xylostella, from the hexane layer of the extract of Andrographis paniculata. The compound was identified as 14-deoxyandrographolide. Although this compound is used as a medicine in Pharmacology, its antifeedant activity against insects has not yet been reported. The minimum effective dose (MED) of the isolated compound in suppressing the feeding of DBM larva was 100 μg/leaf disc. It was less potent than crude extract of the hexane layer (MED=30μg/leaf disc) and a subfraction 5-2 derived from this layer (MED=50μg/leaf disc). This result suggests that substance(s) other than 14-deoxyandrographolide are present in the hexane layer, and may also be contributing towards feeding suppression against the DBM larva. Commercially available andrographolide was also tested for its antifeedant activity and the result (MED=25μg/leaf disc) showed that it was more potent than 14-deoxyandrographolide.
- 日本応用動物昆虫学会の論文
- 1997-11-25
著者
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Nakajima S
Okayama Univ. Okayama
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Nakajima Shuhei
Faculty Of Agriculture Okayama University
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Fujisaki Kenji
Faculty of Agriculture, Okayama University
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Nakasuji Fusao
Faculty of Agriculture, Okayama University
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Hermawan Wawan
Faculty Of Agriculture Okayama University
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Nakasuji F
Okayama Univ. Okayama Jpn
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Nakasuji Fusao
Faculty Of Agriculture Okayama University
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Nakasuji Fusao
Entomology Research Group Faculty Of Agriculture Okayama University
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Nakasuji Fusao
Present Address:laboratory Of Extrachromosomal Genes Department Of Molecular Biology National Instit
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Tsukuda Ritsuko
Faculty of Agriculture, Okayama University
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Fujisaki K
Laboratory Of Insect Ecology Graduate School Of Agriculture Kyoto University
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Fujisaki K
Faculty Of Agriculture Okayama University
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Fujisaki Kenji
Faculty Of Agriculture Okayama University
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Fujisaki Kenji
Entomology Research Group Faculty Of Agriculture Okayama University
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Fujisaki Kenji
Graduate School Of Agriculture Kyoto University
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Fujisaki Kenji
Division Of Biological Sciences Graduate School Of Agriculture Kyoto University
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Tsukuda Ritsuko
Faculty Of Agriculture Okayama University
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