Coordinated Activation of Metabolic Pathways for Antioxidants and Defence Compounds by Jasmonates and their Roles in Stress Tolerance in Arabidopsis
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- Sasaki-Sekimoto Yuko
- Tokyo Institute of Technology, Graduate School of Bioscience and Biotechnology
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- Taki Nozomi
- Tokyo Institute of Technology, Graduate School of Bioscience and Biotechnology
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- Obayashi Takeshi
- Tokyo Institute of Technology, Graduate School of Bioscience and Biotechnology
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- Aono Mitsuko
- National Institute for Environmental Studies
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- Matsumoto Fuminori
- Tokyo Institute of Technology, Graduate School of Bioscience and Biotechnology
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- Sakurai Nozomu
- Kazusa DNA Research Institute, PM NEDO laboratory
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- Suzuki Hideyuki
- Kazusa DNA Research Institute, PM NEDO laboratory
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- Hirai Y Masami
- Chiba University, Graduate School of Pharmaceutical Sciences CREST, JST (Japan Science and Technology Corporation) RIKEN Plant Science Center
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- Noji Masaaki
- Chiba University, Graduate School of Pharmaceutical Sciences
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- Saito Kazuki
- Chiba University, Graduate School of Pharmaceutical Sciences CREST, JST (Japan Science and Technology Corporation) RIKEN Plant Science Center
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- Masuda Tatsuru
- Tokyo Institute of Technology, Graduate School of Bioscience and Biotechnology
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- Takamiya Ken-ichiro
- Tokyo Institute of Technology, Graduate School of Bioscience and Biotechnology
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- Shibata Daisuke
- Kazusa DNA Research Institute, PM NEDO laboratory
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- Ohta Hiroyuki
- Tokyo Institute of Technology, Graduate School of Bioscience and Biotechnology
Bibliographic Information
- Other Title
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- ジャスモン酸による抗酸化物質代謝経路の協調的活性化がシロイヌナズナの酸化ストレス耐性を引き起こす
Abstract
Jasmonic acid (JA) is ubiquitous plant signaling compound in stress conditions. Although jasmonates are important signaling components, the mechanism by which jasmonate signaling contributes to stress tolerance has not been clearly defined. A comprehensive analysis of jasmonate regulated metabolic pathways in Arabidopsis was performed using cDNA macroarrays covering 8384 loci. We showed that jasmonates activate ascorbate and glutathione metabolic pathways, which are important in defense responses to oxidative stress. These antioxidant metabolic pathways are known to be activated under oxidative stress conditions. We showed that O3 exposure, a representative oxidative stress, caused the induction of several genes involved in antioxidant metabolism in the wild type. However, in jasmonate-deficient opr3 mutants, the induction of antioxidant genes was abolished. Compared with the wild type, opr3 mutants were more sensitive to O3 exposure. These results suggest that the coordinated activation of the metabolic pathways mediated by jasmonates provides resistance to environmental stresses.
Journal
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- Plant and Cell Physiology Supplement
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Plant and Cell Physiology Supplement 2006 (0), 837-837, 2006
The Japanese Society of Plant Physiologists
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Details 詳細情報について
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- CRID
- 1390001205630724352
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- NII Article ID
- 130006991572
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed