Pesticide-induced oxidative stress and antioxidant responses in tomato (Solanum lycopersicum) seedlings

Ecotoxicology
Shakirullah Khan ShakirAzizullah Azizullah

Abstract

Excessive use of pesticides can adversely affect the growth of non-target host plants in different ways. Pesticide-induced stress can affect non-target plants through elevated levels of reactive oxygen species (ROS) responsible for detrimental effects on cell metabolism, biochemical and other physiological activities. In response to oxidative stress, plant activates antioxidant defense system consisting of both enzymatic and non-enzymatic components. In the present investigation, three commonly used pesticides, emamectin benzoate, alpha-cypermethrin and imidacloprid, were assessed for causing oxidative stress in tomato. The oxidative damage induced by these pesticides at five different concentrations i.e. 1/4X, 1/2X, recommended application dose (X), 2X and 4X in the root and shoot tissues of tomato plant/seedlings were evaluated. Following pesticide exposure for 35 days, cell viability, cell injury, total soluble sugar (TSS) and total soluble proteins (TSP) were measured. Antioxidant activities were estimated by measuring activity levels of superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR) peroxidase (POD), ascorbate peroxidase (APX) and proline. Hydrogen peroxide (H2O2) levels were analysed as ROS, lipid ...Continue Reading

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Citations

Sep 28, 2018·Nanomaterials·Shuyuan DuLixia Lu
Sep 22, 2020·Environmental Science and Pollution Research International·Ahmed A A AioubZhaonong Hu
Mar 18, 2021·Journal of Agricultural and Food Chemistry·Shenglan XiaoPeter Fantke
May 24, 2021·Environmental Science and Pollution Research International·Mariyana GeorgievaValya Vassileva
Jul 31, 2021·Journal of Hazardous Materials·Meng Shien GohNyuk Ling Ma
Aug 31, 2021·The Science of the Total Environment·Yuxue ZhangXianyong Lin
Jul 3, 2021·Functional Plant Biology : FPB·Daria A TodorenkoSuleyman I Allakhverdiev

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