Effects of Zinc and Copper Stress on Antioxidant System of Olive Leaves

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Liang, Jian^1^2 ; Yang, Weifei^2

Aba Teachers University, Wenchuan, SICHUAN

623002, China^1

Xichang University, Xichang City, Sichuan Province, China^2

关键词: Antioxidant systems;    Biochemical indicators;    Concentration gradients;    Concentration ranges;    Heavy metal pollution;    Membrane lipid peroxidation;    Physiological factors;    Superoxide dismutases;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/5/052058/pdf
DOI  :  10.1088/1755-1315/300/5/052058

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The purpose of this experiment is to understand the effects of different concentrations of Cu (Cu) and Zn (Zn) heavy metals on the antioxidant index of olive oil and provide a theoretical basis for phytore mediation of heavy metal pollution. In this experiment, the annual olive seedlings were studied. In the experiment, the heavy metal solution was used to simulate the soil heavy metal pollution environment. The concentration of heavy metals Cu and Zn was studied. The active leaves of the olive oil were malondialdehyde (MDA) and soluble. Effects of physiological factors such as protein, superoxide dismutase (SOD), POD, and CAT. In this experiment, the pot experiment of stress oil olive seedlings was studied by setting different concentration gradients of heavy metal iron and Zn. The authors analyzed the antioxidant enzyme system and membrane lipid peroxidation of heavy metal Zn and Cu in olive seedlings. The link between changes in biochemical indicators. Finally, the experimental results showed that the activity values of CAT and POD in the leaves of olive oil showed a trend of decreasing first and then increasing within the experimental concentration range. Among them, the activity of SOD in the leaves was firstly increased, and then the concentration of the enzyme was increased first. The increase of the AMD dropped sharply; the content of MDA in the experiment was not changed under the low concentration treatment, but the high concentration of Zn and Cu in the experiment caused a sharp increase in the content of malondialdehyde; soluble protein content Continue to rise.