Organization and regeneration ability of spontaneous supernumerary eyes in planarians - Eye regeneration field and pathway selection by optic nerves
スポンサーリンク
概要
- 論文の詳細を見る
Planarians can propagate asexually by fission and successive regeneration. During head regeneration, they again form a new pair of eyes, and sometimes supernumerary eyes. The positions of normal and supernumerary eyes and their regeneration abilities are expected to be highly relevant to the question of where and how the field to regenerate eyes is determined. In this study, spontaneously generated supernumerary eyes were classified into various types. In all cases, they were formed in the anterior part of the head. Enucleation of a normal eye elicited regeneration of a new eye; however, enucleation of a supernumerary eye did not. The supernumerary eyes were morphologically and functionally indistinguishable from the normal eyes, revealed by the studies of immunohistology and photophobic response, respectively. From the obtained results, we proposed a model of the eye regeneration field that changes its distribution spatiotemporally during regeneration. Immunohistological studies also showed that the optic nerves from the normal and supernumerary eyes ran independently, which might have implication about the nature of guidance cues for the optic nerves.
- 社団法人日本動物学会の論文
- 2000-04-10
著者
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Agata K
Dep. Of Biophysics Graduate School Of Sci. Kyoto Univ.
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Agata Kiyokazu
Lab. Mol. Dev. Biol. Grad. Sch. Sci. Kyoto Univ.
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Agata Kiyokazu
理化学研究所発生再生科学総合研究センター
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Agata Kiyokazu
Genome Resource And Analysis Subunit Riken Center For Developmental Biology
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Watanabe K
Tohoku Univ. Sendai Jpn
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Watanabe Kohei
Canon Inc.
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Agata Kiyokazu
Dep. Of Biophysics Graduate School Of Sci. Kyoto Univ.
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Agata Kiyokazu
Laboratory For Evolutionary Regeneration Center For Developmental Biology Riken
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Agata Kiyokazu
Riken Cdb Evo.
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Watanabe Kenji
Graduate School Of Life Science University Of Hyogo
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Orii Hidefumi
Laboratory of Regeneration Biology, Department of Life Science, Faculty of Science, Himeji Institute
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Watanabe Kenji
Laboratory of Regeneration Biology, Department of Life Science, Faculty of Science, Himeji Institute
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Agata Kiyokazu
Group For Evolutionary Regeneration Biology Center For Developmental Biology Riken Kobe
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Sakai Fumie
Laboratory of Regeneration Biology, Department of Life Science, Faculty of Science, Himeji Institute
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Orii H
Graduate School Of Life Science University Of Hyogo
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Orii Hidefumi
Department Of Life Science Graduate School Of Science Himeji Institute Of Technology
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Orii Hidefumi
Laboratory Of Regeneration Biology Department Of Life Science Graduate School Of Science Himeji Inst
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Watanabe Kazutada
Department Of Experimental Biology Tokyo Metropolitan Institute Of Gerontology
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Sakai Fumie
Laboratory Of Regeneration Biology Department Of Life Science Faculty Of Science Himeji Institute Of
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Agata Kiyokazu
Lab. For Mol. Dev. Biol. Dept. Of Biophys. Grad. Sch. Of Sci. Kyoto Univ.
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Watanabe Kenji
Laboratory Of Regeneration Biology Department Of Life Science Graduate School Of Science Himeji Inst
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Watanabe Kenji
Laboratory Of Food Material Engineering Faculty Of Agriculture Gifu University
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