INCREASE IN INTRACELLULAR CALCIUM IONS UPON FERTILIZATION IN ANIMAL EGGS (<Symposium>Histo- and Cytochemistry in Tissue Culture)
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概要
- 論文の詳細を見る
A transient rise in the concentration of Ca^<2+> in the cortex upon ferttilization was demonstrated in echinoderm, teleost, amphlian and mammalian eggs by the luminescence of aequorin which had been microinjected into the egg, with a high sensitivity video-microscopic system. The Ca^<2+> increase started near the site of sperm entry and was propagated as a wave along the cortex toward the antipode of the egg. The wave occurred once and the propagation velocity of the wave was about 10 μm/sec in echinoderm, teleost and amphibian eggs at room temperatures, while a series of Ca^<2+> waves with a higher propagation velocity were observed in golden hamster eggs in a warmed condition. Possible involvement of Ca^<2+> and inositol 1,4,5-triphosphate in the activation upon fertilization was investigated.
- 日本組織細胞化学会の論文
著者
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Iwamatsu Takashi
Department of Biology, Aichi University of Education
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Iwamatsu Takashi
Department Of Biology Aichi University Of Education
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HIRAMOTO YUKIO
Biological Laboratory, University of the Air
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YOSHIMOTO YASUAKI
Biological Laboratory, Kansai Medical University
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Hiramoto Yukio
Biological Laboratory The University Of The Air
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Yoshimoto Y
Kansai Medical Univ. Osaka Jpn
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Yoshimoto Yasuaki
Biological Laboratory Kansai Medical University
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