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Journal of Plant Nutrition Volume 25, 2002 - Issue 7
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Original Articles

GROWTH AND NUTRIENT COMPOSITION OF ELSHOLTZIA SPLENDENS NAKAI UNDER COPPER TOXICITY

Ming Jie Yang Department of Natural Resources, College of Environmental & Resources Science, Zhejiang University, Huajiachi Campus, Hangzhou, 310029, China
,
Xiao E Yang Department of Natural Resources, College of Environmental & Resources Science, Zhejiang University, Huajiachi Campus, Hangzhou, 310029, China
&
Volker Römheld Institute of Plant Nutrition (330), University of Hohenheim, Stuttgart, 70593, Germany
Pages 1359-1375 | Published online: 14 Feb 2007
 
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ABSTRACT

Copper (Cu) tolerance and accumulation in Elsholtzia splendens Nakai were investigated by means of hydroponic culture. Enhanced growth was observed when plants were exposed to 50 and 100 µM Cu. Copper uptake efficiency and translocation depended on Cu concentration in nutrient solution. Shoot Cu concentrations of 1133 and 3417 µg g−1 dry wt were achieved by 500 and 1000 µM Cu supply, respectively. Copper accumulation in E. splendens was accompanied by the ability to maintain the concentrations of other essential nutrients, except potassium, within the range considered sufficient for normal growth of higher plants. The results obtained suggest that E. splendens has a great potential for phytoremediation.

Keywords:

ACKNOWLEDGMENTS

The present study was financed by National Natural Science Foundation of China (NSFC, No: 29977017) and Outstanding Young Scientist Grant from NSFC.

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