Iron deficiency causes zinc excess in Zea mays(Plant Nutrition)
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概要
- 論文の詳細を見る
Iron deficiency stress causes a severe reduction in plant growth. Although Fe deficiency causes an imbalance in divalent heavy metal nutrients, the mechanisms underlying the growth reduction caused by this imbalance remain unclear. We investigated Zn uptake and accumulation in maize under Fe-deficient conditions. Under Fe-deficient conditions, Zn uptake was 15-fold higher and Zn accumulation was 16-fold higher than that under normal nutrient conditions. The Zn content of maize leaves under Fe-deficient conditions was >0.4mg g^<-1> dry weight, which was higher than the content of plants grown in a nutrient solution containing 50μM ZnCl_2. Plant growth under conditions of both Fe and Zn deficiency was significantly higher than that under only Fe-deficient conditions. Moreover, Fe deficiency increased the thiol content of the plant. These results indicate that Fe deficiency causes excess uptake and accumulation of Zn, and that the stress resulting from the Zn overload accelerates growth reduction in maize.
- 社団法人日本土壌肥料学会の論文
著者
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HIRAI Midori
Department of Clinical Pharmacy, Kobe Pharmaceutical University
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Tadano Toshiaki
Department of Bioscience and Chemistry, Faculty of Agriculture, Hokkaido University
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Hirai Midori
Department Of Applied Biology And Chemistry Faculty Of Applied Bio-science Tokyo University Of Agric
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Tadano Toshiaki
Department Of Applied Biology And Chemistry Faculty Of Applied Bio-science Tokyo University Of Agric
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Maeda Yoshiyuki
Department Of Applied Biology And Chemistry Faculty Of Applied Bio-science Tokyo University Of Agric
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HIGUCHI Kyoko
Department of Agricultural Chemistry, The University of Tokyo
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Tadano Toshiaki
Tokyo Univ. Agriculture Tokyo Jpn
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Tadano Toshiaki
Hokkaido University
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Higuchi Kyoko
Department Of Agricultural Chemistry The University Of Tokyo
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Higuchi Kyoko
Tokyo Univ. Agriculture Tokyo Jpn
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KANAI Masatake
Department of Applied Biology and Chemistry, Faculty of Applied Bio-Science, Tokyo University of Agr
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YOSHIBA Masaaki
Department of Applied Biology and Chemistry, Faculty of Applied Bio-Science, Tokyo University of Agr
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Kanai Masatake
Department Of Applied Biology And Chemistry Faculty Of Applied Bio-science Tokyo University Of Agric
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Yoshiba Masaaki
Jst‐crest Tokyo Jpn
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Maeda Yoshiyuki
Tokyo Univ. Agriculture Tokyo Jpn
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Tadano Toshiaki
Laboratory Of Plant Production Chemistry Department Of Applied Biology And Chemistry Faculty Of Appl
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Higuchi Kyoko
Laboratory Of Plant Production Chemistry Department Of Applied Biology And Chemistry Faculty Of Applied Bio-science Tokyo University Of Agriculture
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