Ultrastructure effects of omethoate and cypermethrin insecticides on maize seedlings

文献类型： 外文期刊

第一作者： Wen, Ya-meng

作者： Wen, Ya-meng;Meng, Ling-yu;Liu, Shi-tao;Zhu, Cheng-mei;Qu, Ai-jun;Liu, Ying-jie

作者机构：

关键词： Insecticide;ultrastructure;maize;leaf cell

期刊名称：CHEMISTRY AND ECOLOGY （ 影响因子：2.244； 五年影响因子：1.933 ）

ISSN： 0275-7540

年卷期： 2017 年 33 卷 9 期

页码：

收录情况： SCI

摘要： Increasing studies suggest that insecticides are one of the plant stress elements that affect plant growth and productivity by interfering with cell metabolic and biochemical activities. Here, we show that the application of commonly used pesticides omethoate and cypermethrin on maize (Zea mays L. cv. Luyu 9) seedling leaves resulted in adverse effects on leaf ultrastructure changes under laboratory conditions. Electron microscopic studies reveal that the topical application of organophosphorus insecticide omethoate causes direct injury of leaf ultrastructures including cell wall breakdown of abaxial epidermis cells, inner cells, stomata guard cells; degradation of mitochondrial membrane, and chloroplast envelope membrane; and abnormal changes of lamella arrangement of chloroplast. And the topical application of cypermethrin insecticide causes plasmolysis of cells of the adaxial epidermis, mitochondrial cristae are degraded, and loosen arranged lamella of amyloplasts. All these changes indicated that omethoate and cypermethrin are stress factors that caused adverse effects on plant ultrastructures and biochemical molecules.

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