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新型染色-显微镜工作流可视化土壤-植物系统中的微纤维:对可持续农业和食品安全的影响

Zhangling Chen¹, Laura J Carter², Steven A Banwart³

¹School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom; School of Geography, University of Leeds, Leeds, LS2 9JT, United Kingdom.

The Science of the total environment

|October 11, 2025

概括

土壤中的微纤维 (MFs) 在植物中以不同的方式积累. 菜在根部吸收MF,而中国白菜和卜的吸收量很小,突出了植物的特征.

科学领域:

环境科学环境科学
土壤科学土壤科学
植物生物学植物生物学

背景情况:

微纤维 (MFs) 是农业土壤中最常见的微塑料 (MPs),来源于污水污泥和洗衣机等来源.
了解MF可视化,作物积累和土壤植物系统中的运输至关重要,但仍然有限.

研究的目的:

开发和应用一种新的方法来跟踪MF在土壤植物系统中的分布,吸附,积累和吸收.
为了研究食用蔬菜 (生菜,中国菜,桃卜) 对MF污染的物种特异反应.
为了确定影响MF运输和积累的植物功能特征.

主要方法:

使用1,3,6,8-烯四素酸 (PTSA) 光染色用于MF可视化.
采用了一种序列式多模式显微镜工作流程,用于跟踪MF在土壤和植物相互作用中的作用.
在现实的土壤条件下与MFs种植了生菜,中国卷心菜和桃卜.

主要成果:

菜在根表面显示出显著的MF吸附,通过裂纹入口和细胞形成途径透,但没有细胞内吸收.
中国白菜和桃卜表现出有限的MF吸附,没有可观测的吸收.
植物根的透性和抗氧化能力与MF相互作用模式相关,表明了植物功能特征的作用.

结论:

这项研究引入了一种有效的方法,用于在复杂的土壤植物环境中可视化MF.
植物的功能特征显著影响食用作物中微纤维的积累和运输.
调查结果突出了土壤植物系统,食品安全和可持续农业战略的需要的潜在风险.

关键词:

农业的可持续性农业的可持续性光标签的标记食品安全食品安全微纤维是一种微纤维.显微镜的使用方法植物吸收的时间污染物的吸附吸附污染物.

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