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Growth inhibition, toxin production and oxidative stress caused by three microplastics in Microcystis aeruginosa.
Ecotoxicol Environ Saf. 2021 Jan 15; 208:111575.EE

Abstract

Microplastics (MPs) have aroused widespread concern due to their extensive distribution in aquatic environments and adverse effects on aquatic organisms. However, the underlying toxicity of different kinds of MPs on freshwater microalgae has not been examined in detail. In this study, we investigated the effects of polyvinyl chloride (PVC), polystyrene (PS) and polyethylene (PE) MPs on the growth of Microcystis aeruginosa, as well as on its toxin production and oxidative stress. We found that all three kinds of MPs had an obvious inhibition effect on the growth of M. aeruginosa. Considering the results of antioxidant-related indicators, the activity of superoxide dismutase (SOD) and catalase (CAT), and cell membrane integrity were greatly affected with exposure to PVC, PS and PE MPs. Moreover, the content of intracellular (intra-) and extracellular (extra-) microcystins (MCs) had a noticeable increase due to the presence of PVC, PS, and PE MPs. Finally, according to the comprehensive stress resistance indicators, the resistance of M. aeruginosa to three MPs followed the order: PE (3.701)> PS (3.607)> PVC (2.901). Our results provide insights into the effects of different kinds of MPs on freshwater algae and provide valuable data for risk assessment of different types of MPs.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China.

Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China.

Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China.

Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China.

Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China.

Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China. Electronic address: xrxrwang@fudan.edu.cn.

Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China. Electronic address: zhqfan@fudan.edu.cn.

MeSH

AntioxidantsCatalaseFresh WaterMicroalgaeMicrocystinsMicrocystisMicroplasticsOxidative StressPlasticsPolyethylenePolystyrenesPolyvinyl ChlorideSuperoxide DismutaseWater Pollutants, Chemical

Pub Type(s)

Journal Article

Language

eng

PubMed ID

33396101

Citation

Zheng, Xiaowei, et al. "Growth Inhibition, Toxin Production and Oxidative Stress Caused By Three Microplastics in Microcystis Aeruginosa." Ecotoxicology and Environmental Safety, vol. 208, 2021, p. 111575.

Zheng X, Zhang W, Yuan Y, et al. Growth inhibition, toxin production and oxidative stress caused by three microplastics in Microcystis aeruginosa. Ecotoxicol Environ Saf. 2021;208:111575.

Zheng, X., Zhang, W., Yuan, Y., Li, Y., Liu, X., Wang, X., & Fan, Z. (2021). Growth inhibition, toxin production and oxidative stress caused by three microplastics in Microcystis aeruginosa. Ecotoxicology and Environmental Safety, 208, 111575. https://doi.org/10.1016/j.ecoenv.2020.111575

Zheng X, et al. Growth Inhibition, Toxin Production and Oxidative Stress Caused By Three Microplastics in Microcystis Aeruginosa. Ecotoxicol Environ Saf. 2021 Jan 15;208:111575. PubMed PMID: 33396101.

* Article titles in AMA citation format should be in sentence-case

TY - JOUR T1 - Growth inhibition, toxin production and oxidative stress caused by three microplastics in Microcystis aeruginosa. AU - Zheng,Xiaowei, AU - Zhang,Weizhen, AU - Yuan,Yuan, AU - Li,Yanyao, AU - Liu,Xianglin, AU - Wang,Xiangrong, AU - Fan,Zhengqiu, Y1 - 2020/11/11/ PY - 2020/07/22/received PY - 2020/10/14/revised PY - 2020/10/26/accepted PY - 2021/1/5/entrez PY - 2021/1/6/pubmed PY - 2021/1/14/medline KW - Antioxidant enzyme activity KW - Growth KW - Microplastic KW - Toxin production SP - 111575 EP - 111575 JF - Ecotoxicology and environmental safety JO - Ecotoxicol Environ Saf VL - 208 N2 - Microplastics (MPs) have aroused widespread concern due to their extensive distribution in aquatic environments and adverse effects on aquatic organisms. However, the underlying toxicity of different kinds of MPs on freshwater microalgae has not been examined in detail. In this study, we investigated the effects of polyvinyl chloride (PVC), polystyrene (PS) and polyethylene (PE) MPs on the growth of Microcystis aeruginosa, as well as on its toxin production and oxidative stress. We found that all three kinds of MPs had an obvious inhibition effect on the growth of M. aeruginosa. Considering the results of antioxidant-related indicators, the activity of superoxide dismutase (SOD) and catalase (CAT), and cell membrane integrity were greatly affected with exposure to PVC, PS and PE MPs. Moreover, the content of intracellular (intra-) and extracellular (extra-) microcystins (MCs) had a noticeable increase due to the presence of PVC, PS, and PE MPs. Finally, according to the comprehensive stress resistance indicators, the resistance of M. aeruginosa to three MPs followed the order: PE (3.701)> PS (3.607)> PVC (2.901). Our results provide insights into the effects of different kinds of MPs on freshwater algae and provide valuable data for risk assessment of different types of MPs. SN - 1090-2414 UR - https://www.unboundmedicine.com/medline/citation/33396101/Growth_inhibition_toxin_production_and_oxidative_stress_caused_by_three_microplastics_in_Microcystis_aeruginosa_ DB - PRIME DP - Unbound Medicine ER -