Effects of heavy metal terbium on contents of cytosolic nutrient elements in horseradish cell

被引：10
|
作者：
Wang, Lihong [1 ,3 ]
Zhou, Qing [1 ]
Huang, Xiaohua [2 ]
机构：
[1] Jiangnan Univ, Minist Educ, Key Lab Ind Biotechnol, Wuxi 214122, Peoples R China
[2] Nanjing Normal Univ, Coll Chem & Environm Sci, Jiangsu Key Lab Biofunct Mat, Nanjing 210097, Peoples R China
[3] Jiangnan Univ, Sch Civil & Environm Engn, Wuxi 214122, Peoples R China
来源：
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY | 2010年 / 73卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Rare earth elements (REEs); Toxic effect; Cytosolic nutrient elements; Ca2+; RARE-EARTH-ELEMENTS; PLASMA-MEMBRANE; PROTOPLASTS; PEROXIDASE; LANTHANUM; LA3+; INHIBITION; STABILITY; SEEDLINGS; CHANNELS;
D O I：
10.1016/j.ecoenv.2010.03.010
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The wide application of rare earth elements (REEs) has led to the accumulation of REEs in soil and plant. Thereby, the effect of Tb3+ on the contents of cytosolic nutrient elements in horseradish was investigated with the synchronous detection technique of scanning electron microscope and energy dispersive X-ray spectrometry. It was found for the first time that the foliar spraying treatment of Tb3+ destroyed the structure of horseradish mesophyll cells, and then changed the contents of the cytosolic nutrient elements in horseradish, especially Ca. The effect of Tb3+ was increased with increasing the concentration of Tb3+. The hydroponical treatment of Tb3+ could not obviously change the structure of protoplast and the contents of the cytosolic nutrient elements in horseradish leaves. The results indicated that the accumulation of Tb3+ in soil and plant leaves displayed the different toxic effect on plant leaves. (C) 2010 Elsevier Inc. All rights reserved.
引用
收藏
页码：1012 / 1017
页数：6
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