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Yaxin Xiong¹, Qingyang Shi¹, Jun Li²

¹Department of Environmental Sciences, University of California, Riverside, California 92521, United States.

Environmental science & technology

|January 19, 2024

概括

新兴关注的污染物 (CECs) 在植物中经历甲基化和脱甲基化. 这一转变周期影响了环境中CEC的命运和潜在风险.

科学领域:

环境化学环境化学
植物科学植物科学
生态毒理学生态毒理学

背景情况:

新兴关注的污染物 (CECs) 可以通过甲基化/脱甲基化在人类新陈代谢和废水处理过程中转化.
污染物和其转化产品 (TPs) 通过农业利用处理的废水和生物固体进入土壤植物系统.
高级工厂中CEC转化周期的发生和影响在很大程度上是未知的.

研究的目的:

在植物模型中研究常见CECs的甲基化-脱甲基化相互转换.
为了确定更高的工厂是否有助于CEC转换周期.
了解CEC在陆地生态系统中的命运的影响.

主要方法:

对Arabidopsis thaliana细胞和小麦苗木暴露于四种CECs:乙氨基,甘,甲基和纳.
在植物模型中分析甲基化和脱甲基化转化产品 (TPs) 的形成.
评估甲基化-脱甲基化循环的流行和方向性.

主要成果:

在Arabidopsis thaliana和小麦中证实了甲基化-脱甲基化循环.
在测试的CEC中,去甲基化比甲基化发生的程度更大.
转化速率受到R-CH3键强度的影响,其中甲基的显着脱甲基化和乙氨基的甲基化.

结论:

高级工厂在CEC及其甲基化/脱甲基化TP之间表现出活跃的转化循环.
这些植物介导的转变有助于CEC在人-废水-土壤-植物连续体中的复杂行为和潜在风险.
调查结果强调了在CEC的环境风险评估中考虑植物生物转化的重要性.

关键词:

中央和中欧经济共同体 (CECs) 是一个中欧国家.相互转换之间的转换.甲基化 / 脱甲基化植物新陈代谢植物新陈代谢转化产品转化产品的转化产品

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