Novel Structures in Secreting the Androgenic Gland Hormone(Reproductive Biology)
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概要
- 論文の詳細を見る
The secretory granules in the androgenic gland of the terrestrial isopod Armadillidium vulgare, which have been indistinct for long time because of vulnerable structures, were revealed by using the rapidfreezing and freeze-substitution method. The fine struture of the androgenic gland is conspicuous by the distribution of numerous particular organelles in the cytoplasm consisting of the endoplasmic reticulum and the Golgi complex, and by having a number of highly organized structures developed between the androgenic gland cells. The structures connect to the intercellular space, which is seen as intercellular canaliculi for exporting the androgenic gland hormone. The plasma membranes near the particular structure of the intercellular canaliculi in the androgenic gland are often specialized to form cellular junctions. The secretory granules including the electron-dense materials, which are supposed to be peptides of androgenic gland hormone, are distributed beside the particular structure of the intercellular canaliculi. Some of the granules are seen to fuse with the plasma membranes. This observation suggests that, in the Armadillidium vulgare, the secretory granules containing androgenic gland hormone are transferred to the extracellular space through the intercellular canaliculi particularly developed for exporting the peptide hormone. This is the first evidence to show the secretory mechanism of the androgenic gland hormone in the Isopoda.
- 社団法人日本動物学会の論文
- 2001-12-10
著者
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Hasegawa Yuriko
Department of Biology, Keio University
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Nakajima Y
Department Of Biophysics And Biochemistry Graduate School Of Science The University Of Tokyo
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Nakajima Yoko
Department Of Biology Keio University
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Negishi S
Department Of Biology Keio University
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Negishi Sumiko
Department Of Biology Keio University
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Hasegawa Y
Department Of Biology Keio University
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Hasegawa Yuriko
Department Of Biology Keio University
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