Effect of Aluminum and Silicon in Solution on the Growth of Rice (Oryza sativa L.) Suspension Cells
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概要
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Cells of two indica rice (Oryza sativa L.) varieties, one aluminum-tolerant (IAC3), and the other aluminum-sensitive (IR45), were grown in suspension culture in a medium with or without Al (0-800 μM), Si (0-2,000μM), or Al and Si in combination as well as in R2 medium as control. The influence of Al or Si on cell growth was evaluated based on the growth of the cells in the treatment medium as well as in the R2 medium and compared with the effect on rice seedlings. Similar responses were observed for the cells and the seedlings; Al treatment resulted in a significant reduction of cell growth in both varieties, and the growth was reduced with the increase of the Al uptake by the cells. IAC3 was more tolerant to Al and it absorbed more Al than IR45. On the contrary, Si alone had almost no effect or exerted a negligible effect on the cell growth in both varieties and Si was hardly absorbed by the cells. There was a slight alleviative effect of Si on Al toxicity in the suspension cells of IR45, whereas, a considerable ameliorative effect in the seedlings. The content of total Al and of Al insoluble in citric acid in the cells were higher in the sole Al (800μM) treatment than in the Al-Si combination treatment. This tendency was also observed in aluminon staining. The differences in the alleviative effects of Si and the uptake of Al and Si between the suspension cells and seedlings may have resulted from the presence of roots and morphological differences in the apoplastic tissues.
- 社団法人日本土壌肥料学会の論文
著者
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KOYAMA Hiroyuki
Laboratory of Plant Cell Technology, Faculty of Applied Biological Sciences, Gifu University
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Rahman Md.
Science Of Biological Resources The United Graduate School Of Agricultural Science Gifu University
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Koyama Hiroyuki
Department of Biotechnology, Faculty of Agriculture, Gifu University
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Hara Tetsuo
Department of Biotechnology, Faculty of Agriculture, Gifu University
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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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Koyama H
Laboratory Of Plant Cell Technology Faculty Of Applied Biological Sciences Gifu University
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Hara Tetsuo
Department Of Biotechnology Faculty Of Agriculture Gifu University
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Koyama Hiroyuki
Department Of Biotechnology Faculty Of Agriculture Gifu University
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