Efficient assimilation of sulfide by transgenic rice plants over-expressing a rice cysteine synthase
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概要
- 論文の詳細を見る
Hydrogen sulfide is a major environmental pollutant, highly toxic to living organisms at high concentrations. Even at low concentrations, it causes an unpleasant odor from wetlands, especially from wastewater. Plants can utilize hydrogen sulfide as a sulfur source to synthesize cysteine, which then serves as the principal substrate for synthesis of other sulfur containing compounds including glutathione and methionine. It was thus feasible to use aquatic plants, which possess high potential for sulfur assimilation, to remove hydrogen sulfide from the wetland. To this end, we have generated transgenic rice plants over-expressing cysteine synthase, a key enzyme in the sulfur assimilation pathway, and evaluated their capacity for sulfur uptake on hydrogen sulfide treatment. The obtained transgenic plants exhibited 3-fold elevated cysteine synthase activity, and incorporated more hydrogen sulfide into cysteine and glutathione than their wild type counterparts upon exposure to a high level of hydrogen sulfide. These observations suggest that over-expression of cysteine synthase in aquatic plants is a viable approach to remove hydrogen sulfide from polluted environments.
- 日本植物細胞分子生物学会の論文
- 2006-03-01
著者
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Nakamura Tomohiko
キリンビール
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Sano Hiroshi
Graduate School Of Biological Sciences Nara Institute Of Science And Technology
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Nakamura Tomohiko
Applied Bioresearch Center Corporate Research And Development Division Kirin Brewery Co. Ltd.
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YAMAGUCHI Yube
Research and Education Center for Genetic Information, Nara Institute of Science and Technology
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NAKAMURA Tatsuo
Research and Education Center for Genetic Information, Nara Institute of Science and Technology
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TATSUMI Yuko
Research and Education Center for Genetic Information, Nara Institute of Science and Technology
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NAKAMURA Kimiyo
Research and Education Center for Genetic Information, Nara Institute of Science and Technology
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SANO Hiroshi
Research and Education Center for Genetic Information, Nara Institute of Science and Technology
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Nakamura Tomohiko
Applied Bioresearch Center Corporate Research And Development Department Kirin Brewery Co. Ltd.
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Sano Hiroshi
Research And Education Center For Genetic Information Nara Institute Of Science And Technology
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Yamaguchi Y
Department Of Bioresources Science Graduate School Of Science And Technology Chiba University
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Sano H
Graduate School Of Biological Sciences Nara Institute Of Science And Technology
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Yamaguchi Yoshitaka
Department Of Biotechnology Faculty Of Engineering Fukuyama University
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Yamaguchi Y
Research And Education Center For Genetic Information Nara Institute Of Science And Technology
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Sano Hiromasa
Graduate School Of Biological Sciences Nara Institute Of Science And Technology
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Nakamura T
Research And Education Center For Genetic Information Nara Institute Of Science And Technology
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Tatsumi Yuko
Research And Education Center For Genetic Information Nara Institute Of Science And Technology
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Nakamura Kimiyo
Research And Education Center For Genetic Information Nara Institute Of Science And Technology
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Yamaguchi Yube
Research And Education Center For Genetic Information Nara Institute Of Science And Technology
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Sano Hiroshi
Res. And Edu. Ctr. For Genetic Information Nara Institute Of Science And Technology
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