LESS INVOLVEMENT OF PHOSPHORUS DEFICIENCY IN THE INHIBITION OF ROOT ELONGATION OF PEA SEEDLINGS BY ALUMINIUM
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概要
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Aluminium (Al) considerably inhibited the root elongation of Alaska pea seedlings at pH 4.5 and higher than 10^<-4>M. After the transfer of seedlings which had been treated by 10^<-3>M Al for only 3 hr to water, there was almost no recovery in the elongation of root. Preor posttreatment by phosphorus did not show any protection for the Al-inhibited root elongation. Unlike the root, shoot elongation was much less inhibited by Al. The amounts of Al in roots increased somewhat proportionally with the increasing concentration of Al in the treatment, but Al in shoots was not altered much. Al-treatment at 10^<-3>M for enough period needed for complete inhibition, did not bring about significant changes in phosphate esters and nucleotides, and phenol-extracted nucleic acids in pea roots. Results are discussed in relation to the mechanisms of Al toxicity.
- 社団法人日本土壌肥料学会の論文
著者
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Hirasawa Eiji
Department Of Agricultural Chemistry Kyoto University
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Matsumoto Hideaki
Department Of Agricultural Chemistry Kyoto University : (present Address) Institute For Agricultural
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Matsumoto Hideaki
Department Of Agirucltural Chemistry Kyoto University
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