Cadmium and Zinc are differentially distributed in Populus tremula x P. alba exposed to metal excess

被引：21
|
作者：
Durand, T. C. [1 ,2 ,3 ,4 ]
Baillif, P. [5 ]
Alberic, P. [5 ]
Carpin, S. [1 ,2 ]
Label, P. [4 ]
Hausman, J. -F. [3 ]
Morabito, D. [1 ,2 ]
机构：
[1] Univ Orleans, UFR Fac Sci, Lab Biol Ligneux & Grandes Cultures, UPRES EA 1207, Rue Chartres,BP 6759, F-45067 Orleans 02, France
[2] INRA, Arbres & Reponses Contraintes Hydr & Environm, ARCHE, F-45067 Orleans, France
[3] CRP Gabriel Lippmann, Dept Environm & Agrobiotechnol, L-4422 Belvaux, GD, Luxembourg
[4] INRA, UR 588, F-45075 Orleans 02, France
[5] Univ Orleans, CNRS, UMR 6113, Inst Sci Terre Orleans, F-45071 Orleans 02, France
来源：
PLANT BIOSYSTEMS | 2011年 / 145卷 / 02期
关键词：
Poplar; heavy metal; cadmium; zinc; THLASPI-CAERULESCENS; CERATOPHYLLUM-DEMERSUM; ACCUMULATION; TOLERANCE; HYPERACCUMULATION; ARABIDOPSIS; STRESS; TOXICITY; LEAF; TRANSPORTER;
D O I：
10.1080/11263504.2011.567787
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Poplar plants were exposed during 61 days to a soil added with heavy metals so as to contain 300 mg Zn2+. kg(-1) soil dry weight (SDW) (Zinc) or 50 mg Cd2+.kg(-1) SDW (Cadmium). The Cd treatment induced a delayed growth of poplar, whereas Zn induced no change in physiological parameters. Both treatments resulted in a significant metal accumulation in plants. Zn2+ and Cd2+ exhibited contrasting distribution within tissues, indicating dissimilar handling by the plant. The main difference was the efficient compartmentalisation of Zn2+ in specific organ parts: old leaves and bark, while Cd2+ did not exhibit such a compartmentalisation. Results were also compared with a previous work where plants were exposed to 360 mg Cd2+.kg(-1) SDW.
引用
收藏
页码：397 / 405
页数：9
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