Copper accumulation and tolerance in Chrysanthemum coronarium L. and Sorghum sudanense L

Archives of Environmental Contamination and Toxicology
Lan WeiZhenguo Shen

Abstract

In the present study, the growth of Chrysanthemum coronarium L. and Sorghum sudanense L. and their copper accumulation were studied using hydroponic experiments. Results showed that the root elongation, dry biomass yield, and chlorophyll content in both plant species decreased significantly with the increasing level of Cu in solution. The concentrations of Cu in the two plants increased greatly with the increasing Cu level in the treatments. However, most of the Cu was accumulated in roots, and only a small portion was translocated into shoots. Compared with S. sudanense, the shoots of C. coronarium had a significantly higher concentration of Cu. The total amount and percentage of water-soluble Cu, and the nonprotein thiol were also higher in the shoots of C. coronarium. In the roots, however, S. sudanense accumulated more Cu than C. coronarium. The treatments with 5 to 50 mumol L(-1) Cu significantly increased the uronic acid content in the roots of S. sudanens, but did not have any significant effect for C. coronarium. Higher concentrations of Cu bound to the cell wall and uronic acid in the roots of S. sudanense were speculated to be the main reason to restrain Cu translocation from roots to shoots.

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Citations

Nov 1, 2012·Archives of Environmental Contamination and Toxicology·Jianyun SunZhenguo Shen
Nov 18, 2011·Environmental Science and Pollution Research International·Kai-Wei JuangBo-Ching Chen
Feb 19, 2014·Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine·Yufeng SongZhenguo Shen
Mar 19, 2014·Ecotoxicology and Environmental Safety·Kai-Wei JuangBo-Ching Chen
Jul 3, 2013·Environmental Science and Pollution Research International·Pan GuoYahua Chen
Nov 12, 2013·Plant Physiology and Biochemistry : PPB·Pei-Yi ChenKai-Wei Juang
Jun 11, 2014·International Journal of Phytoremediation·Parisa AhmadpourArifin Abdu
Aug 27, 2018·Environmental Science and Pollution Research International·Peng WangCunyi Yang
Jan 28, 2020·Ecotoxicology and Environmental Safety·Fei-Li LiJiade Wang

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