Biological responses of wheat (Triticum aestivum) plants to the herbicide simetryne in soils

Ecotoxicology and Environmental Safety
Lei JiangYong Lin

Abstract

The rotation of rice and wheat is widely used and highly endorsed, and simetryne (s-triazine herbicide) is one of the principal herbicides widely used in this rotation for weed and grass control. However, little is known regarding the mechanism of the ecological and physiological effects of simetryne on wheat crops. In this study, we performed a comprehensive investigation of crop response to simetryne to elucidate the accumulation and phytotoxicity of the herbicide in wheat crops. Wheat plants exposed to 0.8 to 8.0mgkg(-1) simetryne for 7 d exhibited suppressed growth and decreased chlorophyll content. With simetryne concentration in the soil varied from 0.8mgkg(-1) to 8.0mgkg(-1), simetryne was progressively accumulated by the wheat plants. The accumulation of simetryne in the wheat plants not only induced the over production of ROS and injured the membrane lipids but also stimulated the production of antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT), peroxidase (POD), ascorbate peroxidase (APX), glutathione reductase (GR) and glutathione S-transferase (GST). A test of enzymatic activity and gene expression illustrated that the wheat plants were wise enough to motivate the antioxidant enzymes through b...Continue Reading

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Citations

Dec 13, 2016·Ecotoxicology and Environmental Safety·Caixia Wang, Qingming Zhang
Aug 25, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Shuang GaoFei Ye
Mar 6, 2019·International Journal of Molecular Sciences·Andréia CaverzanLeandro Vargas
May 11, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Hossein MardaniYoshiharu Fujii
Jan 26, 2021·Ecotoxicology and Environmental Safety·Ying ZhangZhao Jiang

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