The ubiquitous presence of microplastics is a serious concern due to the extensive use in commercial crop production, such as strawberries. However, how microplastics affect strawberries is unclear. In this work, we utilized hydroponic cultivation to examine the effects of polystyrene microplastics on strawberry seedlings. The results showed that microplastics significantly affected the root growth of strawberry seedlings, but had little effect on the number of leaves. Results via confocal laser scanning microscopy revealed that after exposure for seven days, 200 nm polystyrene microplastics initially reached the root hairs. After a duration of 14 days, the polystyrene microplastics were afterwards transported to the vascular bundle contained within the roots. This implies the exposure time was influenced by the accumulation and dispersion of polystyrene microplastics. The nutrient uptake of the strawberry plant, including NH-N, NO-N, K, P, Ca, and Mg, was affected by microplastics, especially the significant decrease in the root-to-shoot translocation rate of N, K, and P. Polystyrene microplastics may increase the demand and consumption of most macronutrients by strawberries for leaf and fruit development, leading to a nutritional imbalance in plants. Our outcomes offer solid scientific support for risk assessments of polystyrene microplastic exposure and the impact of microplastics on strawberry seedling nutrient absorption.

中文翻译：

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草莓植株中微塑料的分布及其对养分吸收的影响

由于微塑料在草莓等商业作物生产中的广泛使用，无处不在的微塑料引起了人们的严重关注。然而，微塑料如何影响草莓尚不清楚。在这项工作中，我们利用水培法来研究聚苯乙烯微塑料对草莓幼苗的影响。结果表明，微塑料显着影响草莓幼苗根系生长，但对叶片数量影响不大。共焦激光扫描显微镜结果显示，暴露 7 天后，200 nm 的聚苯乙烯微塑料最初到达根毛。 14 天后，聚苯乙烯微塑料被输送到根部的维管束中。这意味着暴露时间受到聚苯乙烯微塑料的积累和分散的影响。草莓植株对NH-N、NO-N、K、P、Ca、Mg等养分的吸收受到微塑料的影响，特别是N、K、 P. 聚苯乙烯微塑料可能会增加草莓叶子和果实发育对大多数常量营养素的需求和消耗，导致植物营养失衡。我们的研究结果为聚苯乙烯微塑料暴露的风险评估以及微塑料对草莓幼苗营养吸收的影响提供了坚实的科学支持。