PolyU Institutional Repository >
Civil and Environmental Engineering >
CEE Journal/Magazine Articles >
Please use this identifier to cite or link to this item:
|Title: ||Copper accumulation and tolerance in Chrysanthemum coronarium L. and Sorghum sudanense L.|
|Authors: ||Wei, Lan|
|Issue Date: ||Aug-2008 |
|Citation: ||Archives of environmental contamination and toxicology, Aug. 2008, v. 55, no. 2, p. 238-246.|
|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 µmol 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.|
|Description: ||DOI: 10.1007/s00244-007-9114-1|
|Rights: ||© Springer Science+Business Media LLC 2008. The original publication is available at www.springerlink.com.|
|Type: ||Journal/Magazine Article|
|Appears in Collections:||CEE Journal/Magazine Articles|
Locate publisher version via
All items in the PolyU Institutional Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
No item in the PolyU IR may be reproduced for commercial or resale purposes.