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Ecotoxicity and genotoxicity of polystyrene microplastics on higher plant Vicia faba

Jiang, Xiaofeng, Chen, Hao, Liao, Yuanchen, Ye, Ziqi, Li, Mei, Klobučar, Göran·2019·Environmental Pollution

Abstract

Nano- and microplastics have been widely spread in environmental matrices, especially in marine and terrestrial systems. In this study, higher plant Vicia faba root tips were exposed to 5 μm and 100 nm with 10, 50 and 100 mg/L polystyrene fluorescent microplastics (PS-MPs) for 48 h. Root length, weight, oxidative stress and genotoxicity of V. faba were assessed to investigate toxic effects of PS-MPs. The results showed that the biomass and catalase (CAT) enzymes activity of V. faba roots decreased under 5 μm PS-MPs whereas superoxide dismutase (SOD) and peroxidase (POD) enzymes activity significantly increased. Under the 100 nm PS-MPs exposure a significant decrease of growth was observed only at the highest concentration (100 mg/L). However, micronucleus (MN) test and antioxidative enzymes activities showed that 100 nm PS-MPs induce higher genotoxic and oxidative damage to V. faba than 5 μm PS-MPs. Furthermore, the laser confocal scanning microscopy (LCSM) demonstrated that 100 nm PS-MPs can accumulate in V. faba root and most probably block cell connections or cell wall pores for transport of nutrients. These findings provide a new insight into the toxic effects of microplastics on V. faba, and further apply to the ecological risk assessment of microplastics on higher plants.

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Metadata

Authors
Jiang, X., Chen, H., Liao, Y., Ye, Z., Li, M., & Klobučar, G.
Venue
Environmental Pollution
Publisher
Elsevier BV
Published
2019-07
Volume
250
Pages
831-838
ISSN
0269-7491 (ISSN-L)
OpenAlex
W2940235190
Cited by
993
References
11
FWCI
20.71
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Ecotoxicity and genotoxicity of polystyrene microplastics on higher plant Vicia faba. https://app.cochat.ai/papers/10.1016/j.envpol.2019.04.055
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Jiang, X., Chen, H., Liao, Y., Ye, Z., Li, M., & Klobučar, G. (2019). Ecotoxicity and genotoxicity of polystyrene microplastics on higher plant Vicia faba. Environmental Pollution. https://doi.org/10.1016/j.envpol.2019.04.055

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