Accumulation of Heavy Metals in Cell Walls of Polygonum cuspidatum Roots from Metalliferous Habitats
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概要
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The distribution and accumulation of Cu^<2+>, Zn^<2+> and Cd^<2+> ions in the roots of Polygonum cuspidatum, collected from metalliferous and non-metalliferous habitats, were examined. About 90% of the metal ions was located in the cell wall fraction of roots of plants grown in either type of habitat. The metal-ion exchange capacity of the cell walls is not specific to the plants from metalliferous habitats, and there were no significant differences among plants from the various habitats. The capacity for Cu^<2+> ions was greater than that for Zn^<2+> or Cd^<2+> ions. Cu^<2+> ions have a high affinity for the cell wall and, thus, it appears that the cell wall is a barrier for the transportation of Cu^<2+> into the cyioplasm.
- 日本植物生理学会の論文
著者
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建部 到
Department Of Chemistry Graduate School Of Science Osaka University
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Suzuki S
Univ. Tokyo Tokyo Jpn
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Suzuki Shizuo
Faculty Of Pharmaceutical Science Science University Of Tokyo
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Nishizono Hiromi
Faculty of Pharmaceutical Sciences, Science University of Tokyo
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Kubota Kohsuke
Faculty of Pharmaceutical Sciences, Science University of Tokyo
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Ishii Fumi
Chemical Laboratory, Takasaki University of Economics
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Ishii Fumi
Chemical Laboratory Takasaki University Of Economics
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Kubota Kohsuke
Faculty Of Pharmaceutical Sciences Science University Of Tokyo
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Nishizono Hiromi
Faculty Of Pharmaceutical Sciences Science University Of Tokyo
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