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聚乳酸微塑料和TCPP对贝Mytilus coruscus的 byssus基因的联合影响

Li'ang Li¹, Dan Hu¹, Zhen Zhong¹

¹International Research Centre for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, College of Fisheries and Life Science, Shanghai 201306, China.

Marine pollution bulletin

|July 30, 2025

概括

来自聚乳酸 (PLA) 和三-1--2-) 酸 (TCPP) 的老化微塑料 (MP) 伤害海洋. 对老旧的PLA MP和TCPP的联合暴露显著影响贝,突出了可生物降解塑料的生态毒性.

科学领域:

环境科学环境科学
海洋生物学海洋生物学
生态毒理学生态毒理学

背景情况:

聚乳酸 (PLA) 在海洋环境中生物降解为微塑料 (MP).
有机阻燃剂 (OPFR),如三-1--2-) 酸盐 (TCPP),是重要的海洋污染物.
没有充分了解PLA MPs和TCPP的综合生态风险.

研究的目的:

调查原始和老化的PLA MPs和TCPP对海的联合作用.
在不同的暴露条件下分析与 byssus 形成相关的基因表达.
评估这些同时出现的海洋污染物所带来的生态毒性和生态风险.

主要方法:

贝类被暴露在不同度的PLA (处女和老化),TCPP和它们的组合中,持续了14天.
基因表达分析的重点是与 byssus 相关的基因.
使用的度:PLA (0.2和1毫克/升),TCPP (0.5微克/升).

主要成果:

暴露于1 mg/L的老化PLA或0.5 μg/L的TCPP单独抑制了状斑块的基因表达.
对老化PLA和TCPP的联合暴露对 byssus产生了协同的负面影响.
综合性毒性随着老化PLA度的增加而增加.

结论:

老化增加了PLA微塑料的生态毒性,尽管它们是可生物降解的.
对老年PLAMP和TCPP的联合暴露对海洋生物构成重大生态风险.
需要更加关注与海洋生态系统中PLA污染相关的未来风险.

关键词:

衰老的衰老衰老的衰老鱼相关的基因表达方式这种植物是Mytilus coruscuscus.多乳酸 (PLA) 是一种多乳酸.三-1-chloro-2-propyl) 酸盐 (TCPP) 的使用方法

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