Preferential Translocation of Boron to Young Leaves in Arabidopsis thaliana Regulated by the BOR1 Gene
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概要
- 論文の詳細を見る
A mutant of Arabidopsis thaliana, bor1-1 (Noguchi et al. 1997 : Plant Physiol., 115,901-916) requires high levels of boron (B) for normal growth. We analyzed the B-deficiency symptoms of bor1-1 mutant plants in detail. A low B supply retarded the growth of the mutant plants more evidently in leaves than in roots. In particular, cell expansion and formation of air spaces were severely impaired by B deficiency in young rosette leaves. Such defects in growth were correlated with the reduced contents of B in leaves. These defects were not observed when a sufficient amount of B was supplied. Uptake experiments with ^10B-enriched tracer B demonstrated that B taken up through roots was preferentially transported to young leaves compared to old leaves in the wild-type plants under a low B supply. Such a preferential transport to young leaves was not evident in the mutant plants. In conclusion, our data demonstrated that in A. thaliana plants B is preferentially transported to young organs under a low B supply and that this transport process is controlled at least in part by the BOR1 gene.
- 社団法人日本土壌肥料学会の論文
著者
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HAYASHI Hiroaki
Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The U
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Hayashi Hiroaki
Department Of Biological Production Faculty Of Bioresource Sciences Akita Prefectural University
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FUJIWARA Toru
Department of Applied Biological Chemistry, The University of Tokyo
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Noguchi Kyotaro
Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The U
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Fujiwara T
Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences The Uni
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Hayashi H
Department Of Biological Production Faculty Of Bioresource Sciences Akita Prefectural University
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Hayashi H
Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences The Uni
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Takano Junpei
Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The U
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Yamagami Mutsumi
Institute of Environmental Science and Technology
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Fujiwara Toru
Graduate School Of Engineering Science Osaka University
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Hayashi Hiroaki
Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences The Uni
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Noguchi Kyotaro
Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences The Uni
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Fujiwara Toru
Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences The Uni
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Takano Junpei
Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences The Uni
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Fujiwara Toru
Dept. Appl. Biol. Chem. Univ. Tokyo:presto Jst
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Noguchi Kyotaro
Nutrient Dynamics Laboratory Department Of Forest Site Environment Forestry And Forest Products Rese
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Noguchi Kyotaro
Dept. Appli. Biol. Chem Div. Agric. And Agric. Life Sci. Univ. Tokyo
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Hayashi H
Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Sciences The Uni
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Hayashi Hiroaki
Department Of Applied Biological Chemistry Graduate School Of Agricultural And Life Science The Univ
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Hayashi Hiroaki
Department Of Agricultural Cheinistry Faculty Of Agriculture University Of Tokyo
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Hayashi Hiroaki
Department Of Applied Biological Chemistry The University Of Tokyo
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