Induction of Non-diapause Eggs by Imidazole Derivative KK-42 in the Diapause Type of Bombyx mori Silkworm.
The injection of an imidazole compound, KK-42, into fifth instar larvae of a silkworm (Bombyx mori, Daizo strain), which had been destined to produce diapause eggs, induced the moths to lay non-diapause eggs. The critical period for KK-42 injection in the induction of non-diapause eggs was 24 h to 72 h after the fourth ecdysis. Topical application of KK-42 to 48 h-old fifth instar larvae also induced non-diapause eggs.
a Faculty of Agriculture , Iwate University , Ueda , Morioka 020 , Japan.
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Chengcang
a Faculty of Agriculture , Iwate University , Ueda , Morioka 020 , Japan.
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Koichi
a Faculty of Agriculture , Iwate University , Ueda , Morioka 020 , Japan.|b Department of Agricultural Chemistry , Kyushu University , Higashi-ku , Fukuoka 812 , Japan.
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Eiichi
diapause egg; imidazole derivative; silkworm