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《Journal of Anhui Agricultural Sciences》 2010-23
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Influences of Single and Compound Pollution of Hg~(2+) and Al~(3+) on the Physiological Characteristics of Pakchoi

JI Jun-hua et al (Department of Environmental Engineering and Chemistry,Luoyang Institute of Science and Technology,Luoyang,Henan 471023)  
[Objective] The aim was to study the toxicity mechanism of heavy metals on pakchoi. [Method] The influences of single and compound pollution of Hg2+ and Al3+ on the MDA content,CAT and POD activities in the leaves of pakchoi Xiaoza56 were studied through sand culture experiments. [Result] The MDA content in the leaves of young pakchoi was firstly increased and then decreased along with the increase of stress concn. of Hg2+ and firstly decreased and then increased along with the increase of stress concn. of Al3+. Under compound pollution,the MDA content in pakchoi leaves was increased significantly. In all the treatments,the CAT and POD activities in pakchoi leaves were obviously higher than that in CK. Under single pollution of Hg2+ and Al3+,the POD and CAT activities were increased along with the increase of treating concn. Under compound pollution,the CAT activity was firstly increased and then decreased and the POD activity was increased gradually along with the increase of treating concn. [Conclusion] The heavy metal stress,such as Hg2+ and Al3+,had different influences on antioxidase activity in pakchoi leaves and there was synergistic effect among heavy metals.
【Fund】: 洛阳理工学院人才基金项目(ZA060009)
【CateGory Index】: X173
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