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タイトル: Intensity of larval diapause in the bamboo borer, Omphisa fuscidentalis
著者: Singtripop, Tippawan
Tungjitwitayakul, Jatuporn
Sakurai, Sho
櫻井, 勝
発行日: 2002年 5月
出版社(者): Zoological Society of Japan = 日本動物学会
雑誌名: Zoological science
ISSN: 0289-1824
巻: 19
号: 5
開始ページ: 577
終了ページ: 582
キーワード: 20-Hydroxyecdysone
Development
Responsiveness
Sensitivity
Tropical insect
抄録: Larvae of the bamboo borer, Omphisa fuscidentalis, enter larval diapause in September and pupate in the following June (Singtripop et al., 1999). We examined the changes in the responses of larvae to exogenous 20-hydroxyecdysone (20E) in order to estimate the progress of diapause development. In this respect, we adopted two terms, responsiveness and sensitivity of larvae to 20E. Responsiveness was estimated by the percentage of larvae that pupated, and sensitivity was evaluated by the duration from the day of 20E injection to pupation. The responsiveness of larvae declined gradually from September to November when larvae were least responsive to 20E, and then increased markedly from January to February. This indicates that the intensity of diapause increases from September to November and terminated gradually thereafter. Thus the sequence of events as the larval responses to 20E is characterized by a V-shaped curve. Sensitivity of larvae to 20E was at the same level from September to December, and increased remarkably from December to January. The abrupt increase in the sensitivity occurred one month earlier than the bottom of the V-shaped curve of larval responsiveness, suggesting that the increases in the responsiveness and sensitivity in the latter hall of diapause may be brought about by respective mechanisms.
DOI: 10.2108/zsj.19.577
URI: http://hdl.handle.net/2297/28995
関連URI: http://www.zoology.or.jp/
http://www.bioone.org/doi/abs/10.2108/zsj.19.577
資料種別: Journal Article
版表示: publisher
出現コレクション:1.査読済論文(理)

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