Rhizoid differentiation in Spirogyra I. Basic features of rhizoid formation
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概要
- 論文の詳細を見る
Several types of rhizoids occurring in the process of differentiation in Spirogyra sp. are described and their interrelation was elucidated. There are two differentiation sequences : P_p → P → Rh_<ros> or P_p → P → Rh_<rod> → Rh_<ros> (for explanation of abbreviations see p. 533), although under some conditions the sequences ceased halfway through. The initiation time for rhizoid formation had no relation to the cell cycle stage. The difference in growth patterns between the rhizoid and ordinary filament cells was demonstrated with Calcofluor-staining and centrifugation. The optimum temperature and pH of the culture medium for rhizoid differentiation were 20℃ and pH 7, respectively. A contact stimulus was not necessary for induction. Of the several environmental factors examined, light was the most important. for rhizoid formation, since a rhizoid was induced only when light was given after cutting the filament.
- 日本植物生理学会の論文
著者
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Nagata Yoko
Department Of Biology Faculty Of Science Osaka University
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Nagata Yoko
Department Of Applied Chemistry Graduate School Of Engineering Nagoya University
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