Oryzacystatins Exhibit Growth-inhibitory and Lethal Effects on Different Species of Bean Insect Pests, Callosobruchus chinensis (Coleoptera) and Riptortus clavatus (Hemiptera).
Oryzacystatins I and II, cysteine proteinase inhibitors in rice seeds, caused growth retardation of different species of bean insect pests, Callosobruchus chinensis (Coleoptera) and Riptortus clavatus (Hemiptera), when added to their diets at concentrations of 0.3-0.5% (w/w). At concentrations of up to 1%, almost all insects died. Our results suggest the usefulness of cystatin for insect pest control and also the critical role of cysteine proteinase in the digestive events of insects.
a Division of Agriculture and Agricultural Life Sciences, Department of Applied Biological Chemistry , The University of Tokyo , Bunkyo-ku, Tokyo 113 , Japan.
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M
Kuroda
a Division of Agriculture and Agricultural Life Sciences, Department of Applied Biological Chemistry , The University of Tokyo , Bunkyo-ku, Tokyo 113 , Japan.|b National Agriculture Research Center , Tsukuba, Ibaraki 305 , Japan.
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M
Ishimoto
a Division of Agriculture and Agricultural Life Sciences, Department of Applied Biological Chemistry , The University of Tokyo , Bunkyo-ku, Tokyo 113 , Japan.|c Cooperated Graduate School, The University of Tsukuha , Tsukuba, Ibaraki 305 , Japan.
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K
Suzuki
a Division of Agriculture and Agricultural Life Sciences, Department of Applied Biological Chemistry , The University of Tokyo , Bunkyo-ku, Tokyo 113 , Japan.|d Suntory Co., Ltd. , Mishima-gun, Osaka 618 , Japan.
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H
Kondo
a Division of Agriculture and Agricultural Life Sciences, Department of Applied Biological Chemistry , The University of Tokyo , Bunkyo-ku, Tokyo 113 , Japan.
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K
Abe
a Division of Agriculture and Agricultural Life Sciences, Department of Applied Biological Chemistry , The University of Tokyo , Bunkyo-ku, Tokyo 113 , Japan.|b National Agriculture Research Center , Tsukuba, Ibaraki 305 , Japan.|c Cooperated Graduate School, The University of Tsukuha , Tsukuba, Ibaraki 305 , Japan.
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K
Kitamura
a Division of Agriculture and Agricultural Life Sciences, Department of Applied Biological Chemistry , The University of Tokyo , Bunkyo-ku, Tokyo 113 , Japan.
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Arai
cysteine proteinase; cysteine proteinase inhibitor; insect pest; oryzacystatin; rice seed