Plant Production Department, Faculty of Technology and Development, Zagazig University, Zagazig, Egypt.
J Environ Health Sci Eng. 2014 Jan 21;12(1):38. doi: 10.1186/2052-336X-12-38.
Cyanophos is commonly used in Egypt to control various agricultural and horticultural pests. It is not easily hydrolyzed and thus they are highly persistent and accumulate in various aquatic compartments such as rivers and lakes. Such issues may be solved by phytoremediation, which is the use of plants for the cleanup of pollutants. Here, we tested Plantago major L. to clean water polluted with cyanophos insecticide under laboratory conditions.The biosorption capacity (KF) of cyanophos were 76.91, 26.18 and 21.09 μg/g for dry roots, fruit (seeds with shells) and leaves of the Plantago major L., respectively. Viable Plantago major L. in water significantly reduced cyanophos by 11.0% & 94.7% during 2 hours & 9 days of exposure as compared with 0.8% & 36.9% in water without the plantain. In water with plantain, cyanophos significantly accumulated in plantain roots and leaves to reach maximum levels after two and four hours of treatment, respectively. After 1 day, the concentration of cyanophos decreased in roots and shoots until the end of testing. Three major degradation products were detected at roots and leaf samples. Here we demonstrate that plantago major L. removes efficiently cyanophos residue in water and has a potential activity for pesticide phytoremediation.
在埃及，敌草腈常用于防治各种农业和园艺害虫。它不易水解，因此具有高度的持久性，并在河流和湖泊等各种水生环境中积累。这些问题可以通过植物修复来解决，即将植物用于污染物的清理。在这里，我们在实验室条件下测试了车前草来净化受敌草腈杀虫剂污染的水。敌草腈的生物吸附容量（KF）分别为干根、果实（带壳种子）和车前草叶片的 76.91、26.18 和 21.09μg/g。与水中无车前草的情况下相比，在水中添加有活力的车前草可在 2 小时和 9 天的暴露时间内分别显著减少 11.0%和 94.7%的敌草腈，而水中无车前草的情况下分别减少 0.8%和 36.9%。在水中添加车前草后，敌草腈在车前草的根和叶中显著积累，分别在处理后两小时和四小时达到最高水平。在 1 天后，根和茎中的敌草腈浓度下降，直到测试结束。在根和叶样本中检测到三种主要的降解产物。在这里，我们证明车前草可以有效地去除水中的敌草腈残留，并且具有用于农药植物修复的潜在活性。
