Single and Joint Effects of Imidacloprid and Microplastics on Lettuce Growth

IF 3 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

Water, Air, & Soil Pollution Pub Date : 2025-10-06 DOI:10.1007/s11270-025-08617-4

Md Mehedee Hasan, Ji Won Yang, Youn-Jun Lee, Eun Hea Jho

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引用次数: 0

Abstract

Understanding the joint effects of microplastics (MPs) and pesticides in agricultural environments is important, as their co-existence may lead to plant responses distinct from those caused by single-contaminant exposure. This study investigated the individual and joint effects of low-density polyethylene (LDPE) MPs (0–3%) and imidacloprid (0–219 mg kg⁻¹) on lettuce to address current knowledge gaps. Growth parameters, chlorophyll content, and imidacloprid uptake in lettuce were evaluated following a 28-d exposure period. Co-exposure to LDPE MPs and imidacloprid led to a 68% reduction in total fresh weight, compared to a 49% reduction with imidacloprid alone. Combined treatment also significantly decreased root and shoot length, number of leaves, and chlorophyll content, and induced morphological changes such as leaf browning and stunted root development. However, LDPE MPs did not affect imidacloprid uptake, suggesting limited influence of MPs on the bioavailability of imidacloprid under the conditions studied. The results emphasize the intensified harmful effects resulting from co-exposure to pesticides and MPs, highlighting the need for further study on management strategies for these contaminants in agricultural land to ensure the sustainability of agricultural systems.

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吡虫啉和微塑料单独及联合施用对生菜生长的影响

了解微塑料（MPs）和农药在农业环境中的共同影响是很重要的，因为它们的共存可能导致植物的反应不同于单一污染物暴露引起的反应。本研究调查了低密度聚乙烯（LDPE） MPs（0-3%）和吡虫啉（0-219 mg kg - 1）对生菜的单独和联合影响，以解决目前的知识空白。在28 d的暴露期后，对生菜的生长参数、叶绿素含量和吡虫啉吸收进行了评估。同时暴露于LDPE MPs和吡虫啉导致总鲜重减少68%，而单独使用吡虫啉则减少49%。联合处理还显著降低了根、梢长、叶片数量和叶绿素含量，并引起叶片褐化和根系发育迟缓等形态变化。然而，LDPE MPs不影响吡虫啉的摄取，表明在所研究的条件下，MPs对吡虫啉生物利用度的影响有限。研究结果强调了农药和MPs共同暴露造成的有害影响加剧，强调需要进一步研究这些污染物在农业用地上的管理策略，以确保农业系统的可持续性。

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来源期刊

Water, Air, & Soil Pollution 环境科学-环境科学

CiteScore

4.50

自引率

6.90%

发文量

448

审稿时长

2.6 months

期刊介绍： Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments. Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation. Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.