Bladder entrance of microplastic likely induces toxic effects in carnivorous macrophyteUtricularia aureaLour
Bladder entrance of microplastic likely induces toxic effects in carnivorous macrophyteUtricularia aureaLour
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微塑料的膀胱入口可能会对肉食性大型植物产生毒性作用
DOI：
10.1007/s11356-020-09529-y
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发表时间：
2020
影响因子：
5.8
通讯作者：
Li Wei
中科院分区：
文献类型：
--
作者：
Zhou Jingzhe;Cao Yu;Liu Xiaoning;Jiang Hongsheng;Li Wei
微塑料（粒径< 5毫米）的全球分布越来越令人担忧，特别是在水生环境中，它可能对常驻生物造成不利影响。然而，迄今为止，很少有研究关注微塑料对水生植物的影响。在这里，我们进行了一个微宇宙研究，以调查微塑料对肉食性水生植物金色狸藻的毒性效应。通过显微图像和拉曼光谱分析，发现聚氯乙烯（PVC）颗粒大多小于U值。因此，允许进入工厂，但对于聚乙烯（PE）颗粒并非如此。此外，PVC（50 mg L-1）对生长和生理参数（如大型植物长度、叶绿素含量和荧光）有显著的负面影响，而在相同浓度下，PE没有这种影响。进一步的分析表明，膀胱切除后，大型植物没有响应PVC颗粒毒性。因此，微塑料的摄入量（即，PVC）通过膀胱可能是负责诱导毒性效应的生长和生理参数的U。金黄色。
The global distribution of microplastic (particle size < 5 mm) is of growing concern, especially in aquatic environments where it may cause adverse effects on resident organisms. To date, however, few studies have focused on the impacts of microplastic on aquatic plants. Here, we conducted a microcosm study to investigate the toxic effects of microplastic on the carnivorous aquatic macrophyteUtricularia aureaLour. Based on microscopic images and Raman spectrum analysis, we found that most polyvinyl chloride (PVC) particles were smaller than the valve ofU. aureabladders, thus allowing entrance into the plant, but this was not so for polyethylene (PE) particles. Furthermore, PVC (50 mg L−1) had significantly negative effects on growth and physiological parameters such as macrophyte length, chlorophyll content, and fluorescence, whereas, at the same concentration, PE had no such effects. Further analysis revealed that after bladder removal, the macrophytes did not respond to PVC particle toxicity. Thus, intake of microplastics (i.e., PVC) through bladders is likely responsible for inducing toxic effects to the growth and physiological parameters ofU. aurea.