Sperm-Activating Peptide Induces Asymmetric Flagellar Bending in Sea Urchin Sperm(Cell Biology)
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概要
- 論文の詳細を見る
Speract, a sperm-activating peptide (SAP) from sea urchin eggs, induces various sperm responses including a transient increase in the intracellular Ca^<2+> concentration. However, it has not been clarified how speract modulates sperm motility and whether it functions as a chemoattractant. To confirm the effect of speract on sperm motility, we observed the flagellar bending response to speract in sperm of Hemicentrotus pulcherrimus, in experiments using caged speract and a lighting system for a microscope newly developed with a power LED. We found that speract induces increases in curvature of swimming paths and changes flagellar bending shape to asymmetric. These facts show that speract directly regulates flagellar motility, and suggest that speract-induced increases in intracellular Ca^<2+> concentration play an actual role in regulation of the flagellar movement.
- 社団法人日本動物学会の論文
- 2005-03-25
著者
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Wood Chris
Department Of Developmental Genetics And Molecular Physiology Institute Of Biotechnology Unam
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Shiba Kogiku
Department of Advanced Biosciences, Graduate School of Humanities and Sciences, Ochanomizu Universit
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Ohmuro Junko
Department of Advanced Biosciences, Graduate School of Humanities and Sciences, Ochanomizu Universit
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Mogami Yoshihiro
Department of Biology, Ochanomizu University
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Nishigaki Takuya
Department of Developmental Genetics and Molecular Physiology, Institute of Biotechnology, UNAM
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Wood Christopher
Department of Developmental Genetics and Molecular Physiology, Institute of Biotechnology, UNAM
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Darszon Alberto
Department of Developmental Genetics and Molecular Physiology, Institute of Biotechnology, UNAM
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Tatsu Yoshiro
National Institute of Advanced Industrial Science and Technology (AIST)
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Yumoto Noboru
National Institute of Advanced Industrial Science and Technology (AIST)
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Baba Shoji
Department of Advanced Biosciences, Graduate School of Humanities and Sciences, Ochanomizu Universit
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最上 善広
お茶大・人間文化創成科学
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Mogami Yoshihiro
Department Of Biology Faculty Of Science Ochanomizu University
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Mogami Yoshihiro
Graduate School Of Humanities & Sciences Ochanomizu University
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Mogami Yoshihiro
Department Of Biology Occhanomizu University
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Mogami Yoshihiro
Graduate School Of Humanities And Sciences Ochanomizu University
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Mogami Y
Department Of Biology Ochanomizu University
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Baba S
Graduate School Of Humanities And Sciences Ochanomizu University
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Baba Shoji
Graduate School Of Humanities & Sciences Ochanomizu University
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Baba Shoji
Department Of Advanced Biosciences Graduate School Of Humanities And Sciences Ochanomizu University
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Ohmuro J
Department Of Advanced Biosciences Graduate School Of Humanities And Sciences Ochanomizu University
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Shiba Kogiku
Department Of Advanced Biosciences School Of Human Environmental Science Graduate School Of Humaniti
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Tatsu Yoshiro
National Institute Of Advanced Industrial Science And Technology
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Yumoto N
National Institute Of Advanced Industrial Science And Technology (aist)
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Yumoto Noboru
National Institute Of Advanced Industrial Science And Technology
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Nishigaki Takuya
Department Of Developmental Genetics And Molecular Physiology Institute Of Biotechnology Unam
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Darszon Alberto
Department Of Developmental Genetics And Molecular Physiology Institute Of Biotechnology Unam
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Mogami Yoshihiro
Ochanomizu Univ. Tokyo Jpn
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