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碳酸改性聚烯微塑料对棉花植物的吸收和影响

Wei Li¹, Junjie Zhao¹, Zhiqiang Zhang²

¹Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China; National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji 831100, China.

Journal of hazardous materials

|January 25, 2024

概括

微塑料 (MPs) 通过抑制发育和引起氧化应激来损害棉花的生长. 这些塑料颗粒进入棉花根,影响植物的新陈代谢,并突出了农业中塑料覆盖的环境风险.

科学领域:

农业科学农业科学
环境科学环境科学
植物生物学植物生物学

背景情况:

微塑料 (MP) 污染是一个日益严重的环境问题,特别是在农业土壤中.
棉花种植中的塑料薄膜覆盖在很大程度上导致了MP污染.
议员对棉花植物生长和生理学的影响仍然不太清楚.

研究的目的:

为了研究碳酸改性聚乙烯微塑料 (PS-COOH) 对棉花苗木的吸收和影响.
分析暴露于PS-COOH的棉花中的表型,转录和代谢变化.
了解棉花中MPs的剂量依赖作用和吸收机制.

主要方法:

棉花幼苗的水培培养暴露于不同度的PS-COOH (100,300,500毫克/升).
现型分析以评估生长抑制.
转录组分析以确定基因表达变化.
代谢分析,以检测生化途径的变化.

主要成果:

暴露于PS-COOH导致棉花苗的显著,剂量依赖的生长抑制.
观察到MPs通过apoplastic吸收入侵和积聚在棉花根中.
转录基因数据显示抗氧化基因的上调调节,表明氧化应激.
烯类生物合成,素,黄类积累和糖糖代谢发生了变化.

结论:

碳基改性聚乙烯微塑料被棉花根吸收,并对植物生长产生负面影响.
暴露于MP会诱导棉花幼苗的氧化应激和代谢变化.
调查结果突出了MP的潜在植物毒性,与农业中塑料薄膜的使用有关.

关键词:

棉花棉花棉花棉花微塑料是一种微塑料.氧化应激是一种氧化应激.烯胺生物合成途径糖的催化作用

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