Effect of Ca on Al-induced Activation of Antioxidant Enzymes in the Needles of Hinoki Cypress (Chamaecyparis obtusa)

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概要

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• The effect of Ca(NO_3)_2 on the active oxygen scavenging system in hinoki cypress (Chamaecyparis obtusa) seedlings cultured in a nutrient solution containing aluminum was examined. The hinoki cypress seedlings were transferred to nutrient solutions containing 5 mM AlCl_3 together with various concentrations of Ca(NO_3)_2 in pots containing glass beads and Teflon tips. The growth in height and dry matter allocation to each organ was little influenced over a period of 12 weeks by either Al or the concentration of Ca(NO_3)_2. The activity of superoxide dismutase (SOD) in the needles was stimulated by Al, and the effect of Al was lowered significantly by simultaneous application of 25 mM Ca(NO_3)_2. At week 1, the activity of catalase (CAT) in the needles was increased by Al, but the effect was no longer observed at week 12. The Al concentration in the roots was increased by treatment with Al, whereas the Al concentration in needles was not. These results indicate that rhizospheric Al stress stimulates antioxidative enzyme activities in hinoki cypress needles and the activation of the enzymes is suppressed by addition of Ca. The transmission of Al stress to the needles, which induced a change in the enzyme activity, is not caused by the transfer of the Al ion itself from roots to needles.

• 日本森林学会の論文
• 2000-05-16

著者

• Ogawa T

  Kyoto Univ. Kyoto Jpn

• Ogawa T

  Department Of Applied Microbial Technology Faculty Of Biotechnology And Life Science Sojo University

• Takenaka Chisato

  Graduate School of Bioagricultural Sciences, Nagoya University

• Ogawa Tomoya

  Laboratory Of Synthetic Cellulary Chemistry The Institute Of Physical And Chemical Research (riken)

• Ogawa Takahira

  Department Of Applied Microbial Technology Faculty Of Biotechnology And Life Science Sojo University

• TAKENAKA Chisato

  Forest Environment, Graduate School of Bioagricultural Sciences, Nagoya University

• TEZUKA Takafumi

  School of Health and Human Life, Nagoya Bunri University

• OGAWA Tadashi

  Graduate School of Agriculture, Kyoto University

• Ogawa Tadashi

  Graduate School Of Bioagricultural Sciences Nagoya University

• Tezuka Takafumi

  Graduate Shool of Human Informatics, Nagoya University

• Matsumoto Chisato

  Graduate School of Bioagricultural Sciences, Nagoya University

• Okayama T

  Research Institute Daiichi Fine Chemical Co. Ltd.

• Ogawa Tadashi

  Graduate School Of Agriculture Kyoto University

• Tezuka T

  School Of Health And Human Life Nagoya Bunri University

• Tezuka Takafumi

  Graduate School Of Human Informatics Nagoya University

• Takenaka C

  Forest Environment Graduate School Of Bioagricultural Sciences Nagoya University

• Takenaka Chisato

  Graduate School Of Bioagricultural Science Nagoya University

• Matsumoto Chisato

  Graduate School Of Bioagricultural Sciences Nagoya University

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