切除根对铜的吸收

Stephen J. Harrison , Nicholas W. Lepp , David A. Phipps
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引用次数: 26

摘要

切除的Hordeum根被用来研究作为络合离子供应铜对随后在根内铜积累的影响。在一系列时间点上比较了不同配合物对铜的吸收与无机盐对铜的吸收。此外,还采用同一配体的两种异构体形式来研究绝对构型对植物组织铜可利用性的作用。最后研究了其他金属离子对游离铜和络合铜吸收的影响,从所有证据中得出结论,植物组织对铜的吸收是由于未络合铜离子的吸收而发生的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Uptake of Copper by Excised Roots

Excised Hordeum roots were employed to examine the effect of supplying copper as a complex ion on the subsequent accumulation of copper within the roots. The uptake of copper from various complexes was compared to uptake from an inorganic salt at a series of points in time. Additionally two isomeric forms of one ligand were employed to investigate the role of absolute configuration on copper availability to the plant tissue. Finally the effect of other metal ions on uptake from both free and complexed copper sources was investigated, and it was concluded from all the evidence that uptake of copper into the plant tissue occurred as a result of absorption of the uncomplexed cupric ion.

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