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Paper Information

Journal:   JOURNAL OF PLANT ENVIRONMENTAL PHYSIOLOGY   WINTER 2012 , Volume 6 , Number 4 (24); Page(s) 53 To 61.
 
Paper: 

THE STUDY OF CADMIUM ACCUMULATION POTENTIAL IN TARAXACUM SYRIACUM BOISS

 
 
Author(s):  MORTAZI M., FARZAMI SEPEHR M.*, SALIMPOUR F.
 
* DEPARTMENT OF BIOLOGY, ISLAMIC AZAD UNIVERSITY, SAVEH BRANCH, SAVEH, IRAN
 
Abstract: 

For investigating of Cd accumulation ability in Asteraceae family, some experiments were conducted on Taraxacum syriacum in total randomly statistical block with four treatment and five replicates after 20 days from germination time Plants were treated by different concentrations of cadmium (0, 50, 100, 150 mg/L) in a 15 days period. Results showed that high concentrations of Cd in nutrition solution had a significant effect on some growth parameters; so that indicated; such as Relative leaf area growth rate, Relative growth rate, Unite leaf area, dry and wet weight of root and shoot reduced lightly and Leaf water content area and Specific leaf area increased. But the rate of Leaf area wasn’t reduced significantly. Cadmium level changing in environment didn’t cause to significant change in Leaf mass fraction content. In treatment with Cadmium, the level of elements such iron, cupper and manganese reduced. The cupper and manganese contain in shoots of treated plant at cadmium level: 100 mg/L didn’t show significant increase. By increasing the Cd level in environment, the amount of it in root and shoot of treated plant increased significantly. By increasing the cadmium level, the total protein contain increased too. Also by SDS- page analysis, it was appeared different protein bands in 150 mg/L and 100 mg/L Cd in compare to control treatment. This research showed that T.syriacum can tolerate at places containing high and medium levels af cadmium and it can be introduced as a plant with Cd accumulating ability.

 
Keyword(s): ACCUMULATION, CADMIUM, CU, FE, GROWTH, MN, PROTEIN, TARAXACUM
 
References: 
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