Determination of Larval Instar Number in the Common Armyworm, Leucania separata (Lepidoptera : Noctuidae) : II. Timing of PTTH Secretion and Ecdysteroid Titer for Fifth Ecdysis
スポンサーリンク
概要
- 論文の詳細を見る
Larval moult before and after the penultimate instar (5th instar) in Leucania separata involves an endocrine cascade that begins with the release of PTTH. The mechanism of this process is as follows : the newly ecdysed 5th instar larvae weighting average 44.0 mg have been already destined to release PTTH at Gate II stage (just before the 3rd night), and subsequently the released PTTH activates the prothoracic glands to increase the hemolymph ecdysteroid titer. The head capsule slippage is induced by this ecdysteroid surge. The 6th instar moult is finally observed about 20 hr after the head capsule slippage. The entire process of this endocrine cascade from 5th instar larva to last instar takes 3 days.
- 日本応用動物昆虫学会の論文
- 1989-02-25
著者
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Shimizu T
National Inst. Sericultural And Entomological Sci. Ibaraki Jpn
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Agui Noriaki
Department Of Medical Entomology National Institute Of Health
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SHIMIZU Toshiaki
Laboratory of Applied Entomology, Faculty of Agriculture, Tokyo University of Agriculture and Techno
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Yagi S
National Inst. Sericultural And Entomological Science Ibaraki Jpn
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Yagi Shigemi
Laboratory Of Applied Entomology And Laboratory Of Microbiology And Fermentation Faculty Of Agricult
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TATEISHI Ken
Laboratory of Applied Entomology, Faculty of Agriculture, Tokyo University of Agriculture and Techno
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KOJIMA Ken-ichi
Laboratory of Applied Entomology, Faculty of Agriculture, Tokyo University of Agriculture and Techno
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Kojima Ken-ichi
Laboratory Of Applied Entomology Faculty Of Agriculture Tokyo University Of Agriculture And Technolo
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Tateishi K
Tokyo Univ. Agriculture And Technol. Tokyo Jpn
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Tateishi Ken
Laboratory Of Applied Entomology Faculty Of Agriculture Tokyo University Of Agriculture And Technolo
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Shimizu Toshiaki
Laboratory Of Applied Entomology Faculty Of Agriculture Tokyo University Of Agriculture And Technology : (present Address)department Of Medical Entomology The National Institute Of Health
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