Boron-Calcium Synergically Alleviates Aluminum Toxicity in Wheat Plants : Triticum aestivum L.(Plant Nutrition)
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概要
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The effects of B and Ca treatments on root growth, nutrient localization and cell wall properties in wheat (Triticum aestivum L.) plants with and without Al stress were investigated. Seedlings were grown hydroponically in a complete nutrient solution for 7 d and then treated with B (0, 40μM), Ca (0, 2,500μM), and Al (0, 100μM) in a 500μM CaCl_2 solution for 8 d. The cell wall materials (CWM) were extracted with a phenol: acetic acid: water (2:1:1 w/v/v) solution and used for subsequent pectin extraction with trans-1, 2-diaminocyclohexane-N,N,N,N-tetraacetic acid (CDTA) and Na_2CO_3 solutions. Boron, Ca, and B+Ca treatments enhanced root growth by 19.5, 15.2, and 27.2%, respectively, compared to the control (pH 4.5). Calcium and B+Ca treatments enhanced root growth with Al stress by 43 and 54%, respectively, while B did not exert any effect. The amounts of CWM and pectin per unit of root fresh weight increased by Al treatment, whereas the Ca and B+Ca treatments slightly reduced the contents of these components. Seventy-four percent of total B, 69% of total Ca, and 85% of total Al were located in the cell wall in the B, Ca, and Al treatments, respectively and 32% of total B, 33% of total Ca, and 33% of total Al were located in the CDTA-soluble and Na_2CO_3-soluble pectin fractions. A more conspicuous localization of B was observed in the presence of Al. Aluminum treatment markedly decreased the Ca content in the cell wall as well as pectin fractions, mainly in the case of the CDTA-soluble pectin fraction. Boron+Ca treatment decreased the Al content in the cell wall and pectin fractions compared to the Ca treatment alone in the presence of Al. It is concluded that the B+Ca treatment enhanced root growth and, B and Ca uptake, and helped to maintain a normal B and Ca metabolism in the cell walls even in the presence of Al.
- 社団法人日本土壌肥料学会の論文
著者
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Hossain M
Laboratory Of Plant Cell Technology Science Of Biological Resources The United Graduate School Of Ag
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Hossain A
Laboratory Of Plant Cell Technology Science Of Biological Resources The United Graduate School Of Ag
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Hossain A.k.m.
Laboratory Of Plant Cell Technology Science Of Biological Resources The United Graduate School Of Ag
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Hossain A.
Gifu University
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HOSSAIN M.
Laboratory of Animal Biotechnology, Faculty of Agriculture, Shinshu University
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KOYAMA Hiroyuki
Laboratory of Plant Cell Technology, Faculty of Applied Biological Sciences, Gifu University
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Hara Tetsuo
Laboratory of Plant Cell Technology, Department of Biotechnology, The United Graduate School of Agri
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Asgar Md.
Laboratory of Plant Cell Technology, Science of Biological Resources, The United Graduate School of
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Tosaki Toshihiko
Laboratory of Plant Cell Technology, Science of Biological Resources, The United Graduate School of
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Hossain A.
Laboratory of Plant Cell Technology, Department of Biotechnology, Science of Biological Resources, T
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Asgar Md.
Laboratory Of Plant Cell Technology Science Of Biological Resources The United Graduate School Of Ag
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Tosaki Toshihiko
Laboratory Of Plant Cell Technology Science Of Biological Resources The United Graduate School Of Ag
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Hara T
Laboratory Of Plant Cell Technology Science Of Biological Resources The United Graduate School Of Ag
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Hara Tetsuo
Laboratory Of Plant Cell Technology Department Of Biotechnology Faculty Of Agriculture Gifu Universi
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Koyama H
Laboratory Of Plant Cell Technology Faculty Of Applied Biological Sciences Gifu University
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Koyama Hiroyuki
Laboratory Of Plant Cell Technology Faculty Of Applied Biological Sciences Gifu University
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Koyama Hiroyuki
Laboratory Of Plant Cell Technology Department Of Biotechnology Faculty Of Agriculture Gifu Universi
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Hossain M.
Laboratory Of Animal Biotechnology Faculty Of Agriculture Shinshu University
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Koyama Hiroyuki
Laboratory Of Animal Physiology And Functional Anatomy Graduate School Of Agriculture Kyoto University
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