Mechanism of artemisinin phytotoxicity action: Induction of reactive oxygen species and cell death in lettuce seedlings

文献类型： 外文期刊

第一作者： Yan, Zhi-Qiang

作者： Yan, Zhi-Qiang;Cui, Hai-Yan;Jin, Hui;Yang, Xiao-Yan;Qin, Bo;Yan, Zhi-Qiang;Cui, Hai-Yan;Jin, Hui;Yang, Xiao-Yan;Qin, Bo;Wang, Dan-Dan;Ding, Lan;Yang, Jian-She;Jin, Hui

作者机构：

关键词： Artemisinin;Cell viability;Lettuce;Mitosis;Phytotoxicity;Reactive oxygen species

期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：4.27； 五年影响因子：4.816 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Artemisinin has been recognized as an allelochemical that inhibits growth of several plant species. However, its mode of action is not well clarified. In this study, the mechanism of artemisinin phytotoxicity on lettuce seedlings was investigated. Root and shoot elongation of lettuce seedlings were inhibited by artemisinin in a concentration-dependent manner. The compound effectively arrested cell division and caused loss of cell viability in root tips of lettuce. Overproduction of reactive oxygen species (ROS) was induced by artemisinin. Lipid peroxidation, proline overproduction and reduction of chlorophyll content in lettuce seedlings were found after treatments. These results suggested that artemisinin could induce ROS overproduction, which caused membrane lipids peroxidation and cell death, and impacted mitosis and physiological processes, resulting in growth inhibition of receptor plants. (C) 2015 Elsevier Masson SAS. All rights reserved.

分类号： Q945`Q946

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