Responses of Antioxidant Enzymes in the Needles of Hinoki Cypress(Chamaecyparis obtusa) Seedlings to Nutrient Solutions Containing Various Calcium/Aluminum Ratios

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概要

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• An attempt was made to examine the possible connection between the various ratios of calcium/aluminum (Ca/Al) in the nutrientsolution of plant cultures and the active oxygen scavenging system of hinoki cypress (Chamaecyparis obtusa) seedlings. The hinoki cypress seedlings were transferred to nutrient solutions containing 5 mM AlCl_3 together with various concentrations ofCa(NO_3)_2 in pots containing glass beads and Teflon tips. The activities of superoxide dismutase (SOD), catalase (CAT), ascorbateperoxidase (APX) and glutathione reductase (GR) in the needles were estimated at several stages during the 7-day treatment. Thesamples treated with the lower Ca/Al solutions show the highest SOD activities. The activities of APX and GR, both of them involvedin the ascorbate-glutathione cycle, showed the same tendency with decrease to higher Ca/Al ratio. These results indicate that rhizospheric Ca might compete with Al and ameliorate Al toxicity on and in the roots, the Al stress is not transformed to the needlesafter a few days, and the ascorbate-glutathione cycle in the hinoki cypress needles might fluctuate and be suppressed by the rhizospheric Al stress during the 7 days.

• 日本森林学会の論文
• 2000-11-16

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

• 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

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