Inhibition of Electrogenesis by Aluminum in Characean Cells
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概要
- 論文の詳細を見る
The effects of aluminum (Al) on electrogenesis at the plasma membrane were examined in internodal cells of Chara corallina. After treating cells with 0.1 mM AICl_3 (pH 4.5), we measured both the membrane potential and the membrane resistance in artificial pond water (pH 5.6). Electrogenesis at the membrane was significantly inhibited by the treatment with AICl_3. A decrease in the pump cur-rent of the electrogenic proton pump and/or a decrease in the electrical resistance (an increase in conductance) of the passive diffusion channel were considered to be responsible for the inhibition of electrogenesis. CaCl_2 had a partial ameliorating effect. Both malic acid and citric acid were very effective in reversing the effects of AICl_3. In addition, these organic acids restored electrogenesis in cells that had been treated with AICl_3. It is suggested that AI affects electrogenesis from the exterior of the membrane, at least during the initial stages of treatment (4-24 h).
- 日本植物生理学会の論文
著者
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新免 輝男
Department Of Life Science Faculty Of Science Himeji Institute Of Technology
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Shimmen Teruo
Department of Life Science, Faculty of Science, Himeji Institute of Technology
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Takabatake Reona
Department of Life science, Faculty of science, Himeji Institute of Technology
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TAKABATAKE Reona
Plant-Microbe Interaction Research, National Institute of Agrobiological Sciences
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Shimmen Teruo
Department Of Biology Faculty Of Science Osaka University:(present)department Of Botany Faculty Of S
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Takabatake Reona
Plant-microbe Interaction Research National Institute Of Agrobiological Sciences
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