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聚乙烯和聚乙烯基酸微塑料通过干扰多个代谢途径,影响花生和树根生物的共生

Juxiang Wu¹, Zhengfeng Wu¹, Tianyi Yu¹

¹Shandong Peanut Research Institute, Qingdao 266100, China.

Journal of hazardous materials

|June 14, 2024

概括

微塑料 (聚乙烯) -MPs和聚乙烯酸盐) -MPs会损害豆类-树菌共生,减少结节数量. 转录组分析揭示了对关键植物代谢途径的影响,影响了作物生长和耐受性.

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) 在农业土壤中普遍存在,对作物发展构成风险.
通过MPs影响豆类-菌体共生的具体机制在很大程度上是未知的.

研究的目的:

调查聚乙烯 (PVC) -MPs和聚乙烯基酸盐 (PBAT) -MPs对花生 (Arachis hypogaea) 和Bradyrhizobium zhanjiangense共生的影响.
阐明在豆类微生物相互作用中MP诱导的压力背后的分子机制.

主要方法:

种植的花生苗中含有不同度的PVC-MPs和PBAT-MPs (3%和5%).
结节数量被量化以评估共生效率.
进行了转录组分析 (RNA-Seq),以确定差异表达基因 (DEG) 和丰富的通路.

主要成果:

无论是PVC-MP还是PBAT-MP,都显著减少了花生结核的数量,而PVC-MP则显示出更严重的影响.
转录组分析显示,在对MPs的反应中,基因表达发生了实质性的改变.
丰富的途径包括那些涉及黄酸,异黄酸,烯酸生物合成,粉和糖代谢,光合作用,表明在植物应激反应和耐受性中的作用.

结论:

PVC-MPs和PBAT-MPs通过改变关键的代谢和信号通路来破坏花生-生体共生.
这些发现提供了关于豆类中MP毒性的分子基础的见解,并突出了对农业生产率和环境健康的潜在风险.

关键词:

议员们强调强调了压力.结节的形成结节的形成结节的形成在PBAT-MPs中.在PVC-MPs中使用.转录组转录组就是一个转录组.

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