带电聚烯微塑料抑制了水培-卷心菜系统中C-triclosan的吸收和转化
Enguang Nie1, Yandao Chen2, Shengwei Xu2
1Institute of Nuclear Agricultural Sciences, Key Laboratory of Nuclear Agricultural Sciences of Ministry of Agriculture and Zhejiang Province, Zhejiang University, Hangzhou 310058, China; College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China.
Journal of advanced research
|July 15, 2024
概括
带电的微塑料 (MPs) 显著改变了植物中的三香命运. 聚烯MP,特别是带正电荷的 (PS-NH3+),减少三香的吸收,并抑制其在白菜中的代谢,影响植物生长.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 植物科学 植物科学
背景情况:
- 由于COVID-19等事件,微塑料 (MP) 和triclosan (一种PPCP) 的水平不断上升.
- 对MP-triclosan相互作用及其对植物命运的影响的理解有限.
研究的目的:
- 调查充电聚烯MPs (PS-MPs) 对水培菜中的三香命运的影响.
- 澄清三桑在存在PS-MPs时的生物积累,分布和新陈代谢.
主要方法:
- 使用14C标签和LC-QTOF-MS来追踪三桑.
- 使用共聚焦激光扫描显微镜和SEM可视化 PS-MP 分布在白菜.
主要成果:
- 在白菜中,PS-MPs显著降低了三桑生物积累和根到芽转移.
- 带正电荷的PS-NH3+MP表现出最强的抑制作用,减少了87.7%的triclosan生物积累和65.8%的转位.
- PS-NH3+抑制了三素代谢,并显著减少了76.9%的白菜生物质.
结论:
- 充电的PS-MP,特别是PS-NH3+,显著抑制了植物中的三素吸收和转化.
- 调查结果为评估环境中PPCP和MP同时发生的风险提供了关键的见解.
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