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多omics揭示了传统和可生物降解的微塑料在生物肥料环境中的作物根球上的不同影响模式

Xinyang Li¹, Xueyu Cheng¹, Jialing Wu²

¹Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, PR China.

Journal of hazardous materials

|February 8, 2024

概括

农业微塑料 (MPs) 对作物生长和土壤微生物产生负面影响,生物降解的MPs比传统聚乙烯更有害. 这项研究揭示了在生物肥料环境中影响植物代谢和根部发育的机制.

科学领域:

环境科学环境科学
农业科学农业科学
土壤科学土壤科学

背景情况:

农业土降解释放微塑料 (MP),可能破坏生物肥料的有效性和作物根系球环境.
关于MP对作物根球的影响的具体机制和经验数据,特别是生物肥料,基本上是未知的.

研究的目的:

研究常规聚乙烯 (PE) MPs和可生物降解的聚乙烯基酸盐-co-butylene terephthalate/聚乳酸 (PBAT-PLA BioMPs) 对Brassica parachinensis的根球的影响.
阐明这些MPs在Bacillus amyloliquefaciens生物肥料存在时对作物生长,微生物群落和代谢途径的影响.

主要方法:

在Brassica parachinensis生长参数上对PE MPs和PBAT-PLA BioMPs进行比较分析.
树枝球微生物社区分析.
转录组和代谢组分析以确定受影响的植物代谢途径.
评估根的抗氧化能力和根球参数的相互关系.

主要成果:

无论是PE MPs还是PBAT-PLA BioMPs都显著抑制了作物生物质和植物高度,PBAT-PLA BioMPs显示出更明显的负面影响.
国会议员造成了根球微生物群落的不平衡.
PE MPs主要影响了与氧化应激相关的根维生素代谢和氨基酸合成.
PBAT-PLA生物MP干扰了脂质丰富和与根生长相关的途径.

结论:

微塑料,特别是生物降解类型,对作物根球健康和生物肥料有效性构成重大生态风险.
了解MPs对作物根球的多学科影响,对于生物肥料和可持续农业的科学应用至关重要.

关键词:

可生物降解的土壤.影响机制影响机制代谢学代谢学代谢学与根相关的微生物群.文字转录学 (Transcriptomics) 是一个学科.

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