Palladium exposure of barley: uptake and effects

被引:63
作者
Battke, F. [1 ]
Leopold, K. [2 ]
Maier, M. [2 ]
Schmidhalter, U. [1 ]
Schuster, M. [2 ]
机构
[1] Tech Univ Munich, Wissensch Zentrum Weihenstephan, Lehstuhl Pflanzenernahrung, Dept Pflanzenwissensch, D-85350 Freising Weihenstephan, Germany
[2] Tech Univ Munich, Lehrstuhl Anorgan Chem, Dept Chem, D-8046 Garching, Germany
关键词
abiotic stress; barley; exhaust gas catalytic converter; graphite furnace atomic asbsorption spectrometry; nano particles; palladium;
D O I
10.1111/j.1438-8677.2007.00017.x
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Motor vehicles are now equipped with exhaust gas catalytic converters containing rare metals, such as palladium (Pd), platinum and rhodium, as catalytic active materials, leading to significantly increased emission of these metals. Compared with platinum and rhodium, low concentrations of Pd have been shown to have more serious effects on cells and organisms. In the present study, uptake of Pd by barley and behaviour of Pd nanoparticles in nutrient solutions used to grow plants were observed in order to develop a model of Pd exposure of plant systems. Pd determination was performed using a selective separation and pre-concentration procedure, which was further developed for this study, and coupled to graphite furnace atomic absorption spectrometry. The results show that uptake of Pd depends on Pd particle diameter. Compared to other toxic metals, like mercury, Pd causes stress effects in leaves at lower concentrations in nutrient solutions. Furthermore, Pd particles are dissolved at different rates, depending on size, in the nutrient solution during plant growth.
引用
收藏
页码:272 / 276
页数:5
相关论文
共 12 条
[1]   A novel method for in vitro culture of plants: Cultivation of barley in a floating hydroponic system [J].
Battke, F ;
Schramel, P ;
Ernst, D .
PLANT MOLECULAR BIOLOGY REPORTER, 2003, 21 (04) :405-409
[2]  
COWGILL UM, 1989, 1027 ASTM
[3]  
FUNK W, 1992, QUALITATSSICHERUNG A, P26
[4]  
HOPPSTOCK K, 2004, ELEMENTS THEIR COMPO, P1047, DOI DOI 10.1002/9783527619634.CH41
[5]  
LEOPOLD K, 2008, IN PRESS SCI TOTAL E
[6]   PLATINUM AND PALLADIUM HYDROSOLS - CHARACTERIZATION BY X-RAY PHOTOELECTRON-SPECTROSCOPY AND TRANSMISSION ELECTRON-MICROSCOPY [J].
MUCALO, MR ;
COONEY, RP ;
METSON, JB .
COLLOIDS AND SURFACES, 1991, 60 :175-197
[7]   Uptake of traffic-related heavy metals and platinum group elements (PGE) by plants [J].
Schafer, J ;
Hannker, D ;
Eckhardt, JD ;
Stuben, D .
SCIENCE OF THE TOTAL ENVIRONMENT, 1998, 215 (1-2) :59-67
[8]  
Schuster M, 1998, ATOM SPECTROSC, V19, P121
[9]  
Schuster M, 2000, ANTHROPOGENIC PLATINUM-GROUP ELEMENT EMISSIONS, P173
[10]  
SURES B, 2006, PALLADIUM EMISSIONS, P489