The Inhibitory Control of Prothoracic Gland Activity by the Neurosecretory Neurones in a Moth, Mamestra brassicae : Physiology

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概要

• 論文の詳細を見る

• The change in both the ecdysteroid titers in the haemolymph and the amount of ecdysteroids released from the prothoracic gland (PTG) in vitro during larval development were determined in Mamestra brassicae. These showed a clear inverse relationship to the efferent electrical activity in the PTG nerves, even in the detailed changes in each day during development. An exception was the final day of the last instar. This result suggests that, as well as the activating effect of prothoracicotropic hormone (PTTH), the PTG innervating neurosecretory neurones are possibly involved in the delicate inhibitory adjustment of the amount of ecdysteroids in the haemolymph. Here, the simultaneous determinations of the amount of ecdysteroids released from PTG and of the electrical activity of nerves by using the isolated preparation in vitro, provides direct evidence of the inhibitory effect of PTG innervating nerve on the PTG.

• 社団法人日本動物学会の論文
• 1989-10-15

著者

• OKAJIMA Akira

  Department of Microbiology and Immunology, Tohoku University Graduate School of Medicine

• Okajima Akira

  Department Of Biology Faculty Of Liberal Arts Yamaguchi University

• Kumagai Kanji

  Biological Institute, Faculty of Liberal Arts, Yamaguchi University

• Kumagai K

  Biological Institute Faculty Of Liberal Arts Yamaguchi University

• Kumagai Kanji

  Department Of Biology Faculty Of Liberal Arts Yamaguchi University

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