Effects of sepiolite and biochar on the photosynthetic and antioxidant systems of pakchoi under Cd and atrazine stress

文献类型： 外文期刊

第一作者： Gao, Zhixin

作者： Gao, Zhixin;Huang, Qingqing;Ma, Tiantian;Qin, Xu;Zhao, Lijie;Sun, Yuebing;Xu, Yingming;Gao, Zhixin;Liu, Yetong;Li, Boyan

作者机构：

关键词： Combined pollution; remediation; pakchoi; antioxidant; photosynthesis

期刊名称：JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES （ 影响因子：2.506； 五年影响因子：2.411 ）

ISSN： 0360-1234

年卷期： 2022 年 57 卷 11 期

页码：

收录情况： SCI

摘要： Sepiolite and biochar effectively immobilize Cd and atrazine in vegetable soils. This study further investigated the effects of sepiolite and biochar on the photosynthetic and antioxidative defence systems of pakchoi under Cd and atrazine stress. The results showed that after adding sepiolite and biochar to contaminated soil, the chlorophyll content was restored and the photosynthetic rate increased, whereas the soluble sugar content of pakchoi decreased. In the antioxidant system of the plants, the activities of peroxidase, ascorbate peroxidase, and superoxide dismutase decreased, while the activity of catalase increased. The content of malondialdehyde, glutathione, and O-2(center dot-) increased, but the content of H2O2 decreased. In general, remediation materials reduced the bioavailability of Cd and atrazine, reduced the stress on pakchoi, and restored and improved the rate of photosynthesis and function of antioxidants.

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