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アイテム
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繊毛虫の重力走性行動における形態依存的重力配向特性
https://jaxa.repo.nii.ac.jp/records/13918
https://jaxa.repo.nii.ac.jp/records/13918ebad0ca3-b632-4620-911b-0d5c6775e776
Item type | 会議発表論文 / Conference Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2015-03-26 | |||||
タイトル | ||||||
タイトル | 繊毛虫の重力走性行動における形態依存的重力配向特性 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 形態 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 繊毛虫 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 配向機序 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 浮力 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 重力生理学 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ゾウリムシ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 遊泳 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | morphology | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | ciliate | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | orientation mechanism | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | buoyancy | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | gravitational physiology | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | paramecium | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | swimming | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
その他のタイトル(英) | ||||||
その他のタイトル | Morphology-dependent orientation mechanisms of gravitactic behavior in ciliates | |||||
著者 |
平嶋, 未絵
× 平嶋, 未絵× 森脇, 梓× 最上, 善広× 馬場, 昭次× Hirashima, Mie× Moriwaki, Azusa× Mogami, Yoshihiro× Baba, Shoji A. |
|||||
著者所属 | ||||||
お茶の水女子大学 大学院人間文化研究科 | ||||||
著者所属 | ||||||
お茶の水女子大学 理学部 生物学科 | ||||||
著者所属 | ||||||
お茶の水女子大学 理学部 生物学科 | ||||||
著者所属 | ||||||
お茶の水女子大学 大学院人間文化研究科 | ||||||
著者所属(英) | ||||||
en | ||||||
Ochanomizu University Graduate School of Humanities and Sciences | ||||||
著者所属(英) | ||||||
en | ||||||
Ochanomizu University Department of Biology, Faculty of Science | ||||||
著者所属(英) | ||||||
en | ||||||
Ochanomizu University Department of Biology, Faculty of Science | ||||||
著者所属(英) | ||||||
en | ||||||
Ochanomizu University Graduate School of Humanities and Sciences | ||||||
出版者 | ||||||
出版者 | 宇宙科学研究所 | |||||
出版者(英) | ||||||
出版者 | The Institute of Space and Astronautical Science (ISAS) | |||||
書誌情報 |
宇宙利用シンポジウム 第19回 平成14年度 en : Space Utilization Research: Proceedings of the Nineteenth Space Utilization Symposium p. 33-35, 発行日 2003-02 |
|||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Gravitactic behaviors of ciliates are performed by the mechanisms orienting the fore-aft axis of the cell to the gravity vector. Physiological and mechanical biases have been postulated to the orientation mechanisms; physiological reorientation is thought to be derived from the results of the cellular mechanical sensation (Ooya et al., 1992), and mechanical ones from the mechanical properties of the swimming cell. Mogami et al. (2001) demonstrated that the mechanical reorientation of Paramecium is largely due to the geometrical fore-aft asymmetry of the cell, which leads to the anterior shift of the hydrodynamic reaction center relative to those of gravity and buoyancy. The morphology-dependent mechanical orientation was clearly demonstrated by the evidence that immobilized cells oriented upwards during sinking in the hypodensity medium (control medium of density lower than that of the organism) whereas downwards during floating in the hyperdensity medium (of density higher than that of the organism). In order to investigate the contribution of the mechanical mechanism working in the swimming cells, the gravitactic behaviors of Paramecium caudatum and Tetrahymena pyriformis in hyperdensity and hypodensity media were compared. Both ciliates showed positive gravitactic migration in hyperdensity media immediately after they were allowed to swim freely in the vertical direction, whereas they showed ordinary negative gravitaxis in hypodensity media. This result indicates that the morphology-dependent mechanical orientation functions as the actual mechanical bias in swimming ciliates. | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0045438011 |