Iron deficiency enhances cadmium uptake and translocation mediated by the Fe^<2+> transporters OsIRT1 and OsIRT2 in rice(Plant Nutrition)
スポンサーリンク
概要
- 論文の詳細を見る
Cadmium (Cd) accumulation in rice grains is enhanced if ponded water is released from paddy fields during the reproductive stage (intermittent irrigation). The release of ponded water creates aerobic soil conditions under which Cd becomes soluble and iron (Fe) solubility decreases. We hypothesized that Fe shortage in rice induces Fe uptake and translocation and that Cd is also taken up and translocated throughout this process. Hydroponically cultured Fe-deficient rice absorbed more Cd than did Fe-sufficient rice, and the presence of Fe enhanced the translocation of Cd to the shoots. Yeast mutants expressing OsIRT1 and OsIRT2, which encode the rice Fe2+ transporter, became more sensitive to Cd, suggesting that Cd was absorbed by OsIRT1 and OsIRT2. We discuss the possibility that Cd accumulation in rice grains during the reproductive stage is mediated by the Fe transport system.
- 社団法人日本土壌肥料学会の論文
著者
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Nishizawa Naoko
Laboratory Of Plant Biotechnology Graduate School Of Agricultural And Life Sciences The University O
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Mori S
Laboratory Of Plant Biotechnology Graduate School Of Agricultural And Life Sciences The University O
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Nakanishi Hiromi
Graduate School of Agricultural and Life Sciences, The University of Tokyo
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Nishizawa Naoko
Graduate School of Agricultural and Life Sciences, The University of Tokyo
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MORI Satoshi
Graduate School of Agricultural and Life Sciences, The University of Tokyo
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Ishimaru Yasuhiro
Graduate School of Agricultural and life Sciences, The University of Tokyo
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OGAWA Ippei
Graduate School of Agricultural and Life Sciences, The University of Tokyo
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Matsuhashi S
Takasaki Advanced Radiation Research Institute Japan Atomic Energy Agency
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Nishizawa Naoko
The University Of Tokyo
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Nishizawa Naoko-kishi
Lab Plant. Mol. Physiol. Tokyo Univ. Fac. Pharmaceutical. Science. Nagoya City Univ.
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Ishimaru Yasuhiro
The University of Tokyo
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Mori S
Dept. Of Appl. Biol. Chem. Univ. Tokyo
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Mori Satoshi
Graduate School Of Agricultural And Life Sciences The University Of Tokyo
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Ishimaru Yasuhiro
Department Of Global Agricultural Sciences Graduate School Of Agricultural And Life Sciences
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Mori Satoshi
Lab Plant. Mol. Physiol. Tokyo Univ. Fac. Pharmaceutical. Science. Nagoya City Univ.
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Nishizawa N‐k
Univ. Tokyo Tokyo Jpn
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Mori S
Department Of Applied Biological Chemistry The University Of Tokyo
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Nishizawa Naoko
Environmental Science Tohoku University
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Ogawa Ippei
Graduate School Of Agricultural And Life Sciences The University Of Tokyo
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Nishizawa Naoko
Graduate School Of Agricultural And Life Sciences The University Of Tokyo
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Mori S
Meijo Univ. Aichi Jpn
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Nishizawa Naoko-kishi
Laboratory Of Plant Nutrition And Fertilizers Department Of Agricultural Chemistry The University Of
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Nakanishi Hiromi
Graduate School Of Agricultural And Life Sciences University Of Tokyo
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Nishizawa Naoko-kishi
Laboratory Of Plant Molecular Physiology The University Of Tokyo
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NISHIZAWA Naoko
Graduate School of Agricultural and Life Science, University of Tokyo
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MORI Satoshi
Graduate School of Agricultural and Life Science, University of Tokyo
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NAKANISHI Hiromi
Graduate School of Agricultural and Life Science, University of Tokyo
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