CHEMICAL NATURE OF MANGANESE IN THE LEAVES OF MANGANESE ACCUMULATOR PLANTS
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概要
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The chemical nature of Mn in the leaves of Acanthopanax sciadophylloides, Ilex crenata var. paludosa and Kalopanax pictus was investigated. Successive extraction of freeze-dried and fresh leaf samples with various solvents showed that the major portion of Mn (>90%) was extractable with water and 0.2 M HCl. Electron probe X-ray microanalysis was performed with the fresh leaf tissues of Mn hyper accumulator A. sciadophylloides, before and after shaking with distilled water, 80% methanol and 1 m HCl. Water removed large parts of Mn in the tissue as a whole except in the region of the epidermis. A negligible amount of Mn was removed by 80% methanol; on the other hand, 1 M HCl removed almost all of the Mn in the tissues. Paper electrophoretic experiments conducted with water and 0.2 M HCl extracts using pyridine-acetic acid buffer (pH 6.5) indicated that Mn in the extracts behaved similarly to Mn^<2+>, presumably due to the labile nature of Mn components in the tissues.
- 社団法人日本土壌肥料学会の論文
著者
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Memon Abdul
Department Of Agricultural Chemistry Faculty Of Agriculture Nagoya University
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Yatazawa Michihiko
Department Of Agricultural Chemistry Faculty Of Agriculture Nagoya University
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Yatazawa Michihiko
Department Of Agr. Chemistry Nagoya University
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