Differential effect of Calcium and Magnesium on Mechanical Properties of Pea Stem Cell Walls
スポンサーリンク
概要
- 論文の詳細を見る
Replacement of calcium ion with magnesium ion in the cell wall of the pea epicotyl makes the wall more extensible. A possible role of this differential effect of Ca^<2+> and Mg^<2+> in regulating cell elongation in pea epicotyl is discussed. The ratio of the content of calcium ion to that of magnesium ion (Ca^<2+>/Mg^<2+>) in the walls decreased markedly in the order of the first > the second > the third internodes of the pea epicotyl. The capacity of the walls for cation exchange increased in the same order, whereas the calcium-magnesium ion exchange selectivity of the walls was virtually constant. Our results indicate that the changes in the Ca^<2+>/Mg^<2+> ratio among the internodes is not attributable to the ion exchange properties of the walls per se, but is due to other physiological conditions which regulate the activities of free calcium and magnesium ions in the environment with which the walls are in equilibrium.
- 日本植物生理学会の論文
著者
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Senda Mitsugi
Department of Agricultural Chemistry, Faculty of Agriculture, Kyoto University
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MORIKAWA Hiromichi
Department of Mathematical and Life Sciences, Graduate School of Science, Hiroshima University
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Senda Mitsugi
Department Of Agricultural Chemistry Faculty Of Agriculture Kyoto University
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Nakajima Norihiko
Department of Agricultural Chemistry, Faculty of Agriculture, Kyoto University
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Igarashi Susumu
Department of Agricultural Chemistry, Faculty of Agriculture, Kyoto University
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Morikawa Hiromichi
Department Of Agricultural Chemistry Faculty Of Agriculture Kyoto University
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Morikawa Hiromichi
Department Of Agricultural Chemistry College Of Agriculture Kyoto University
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Senda Mitsugi
Department Of Agricultural Chemistry College Of Agriculture Kyoto University
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Nakajima Norihiko
Department Of Agricultural Chemistry Faculty Of Agriculture Kyoto University
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Igarashi Susumu
Department Of Agricultural Chemistry Faculty Of Agriculture Kyoto University
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