Modulation of macronutrient metabolism in barley leaves under iron-deficient condition(Plant Nutrition)
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概要
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Iron (Fe) deficiency primarily damages photosystems. A large proportion of the reducing equivalents in mesophyll cells are dependent on the photosynthetic apparatus in the chloroplasts; thus, Fe deficiency profoundly affects nitrogen (N) and sulfur (S) assimilation. Microarray data suggested that nutrient metabolisms concerning the assimilation and re-utilization of essential elements were modulated in barley under Fe-deficient condition. We compared the concentrations of the major essential elements between Fe-deficient barley leaves and Fe-deficient rice leaves. The Fe-deficient barley and rice plants had the same Fe and chlorophyll concentrations, but growth was reduced more in Fe-deficient rice than in Fe-deficient barley. The accumulation of ribulose-1,5-bisphosphate carboxylase/oxygenase protein and nitrite reductase, sulfite reductase, and ferredoxin-dependent glutamate synthase mRNAs was reasonably decreased in the chlorotic young leaves of Fe-deficient barley. NH_4^+, NO_3^-, SO_4^<2->, H_2PO_4^-, and Ca^<2+> concentrations were altered to a larger extent in Fe-deficient rice leaves than in Fe-deficient barley leaves, even in the non-chlorotic old leaves. In this paper, we discuss the adaptation of macronutrient metabolism to Fe deficiency in barley leaves.
- 一般社団法人日本土壌肥料学会の論文
著者
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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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Saito Akihiro
Department Of Applied Biology And Chemistry Tokyo University Of Agriculture
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Miwa Eitaro
Tokyo Univ. Agriculture Tokyo Jpn
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Miwa Eitaro
Department Of Applied Biology And Chemistry Tokyo University Of Agriculture
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MIKAMI Yuichiro
Department of Applied Biology and Chemistry, Faculty of Applied Bio-Science, Tokyo University of Agr
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Mikami Yuichiro
Department Of Applied Biology And Chemistry Faculty Of Applied Bio-science Tokyo University Of Agric
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Saito Akihiro
Department Of Applied Biology And Chemistry Faculty Of Applied Bio-science Tokyo University Of Agric
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Higuchi Kyoko
Department Of Applied Biology And Chemistry Faculty Of Applied Bio-science Tokyo University Of Agric
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Miwa Eitaro
Department Of Applied Biology And Chemistry Faculty Of Applied Bio-science Tokyo University Of Agric
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