Effects of micro- and nano-plastics on accumulation and toxicity of pyrene in water spinach (Ipomoea aquatica Forsk)

被引：0
作者：
Yang Liu
Tong Ren
Guanghui Xu
Honghui Teng
Baolin Liu
Yong Yu
机构：
[1] Chinese Academy of Sciences,Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology
[2] University of Chinese Academy of Sciences,College of Environmental Science and Engineering
[3] Jilin Normal University,College of Chemistry
[4] Changchun Normal University,undefined
来源：
Environmental Science and Pollution Research | 2023年 / 30卷
关键词：
Microplastics; Nanoplastics; Pyrene; Water spinach; Toxicity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Micro- and nano-plastics (MNPs) in terrestrial ecosystems are attracting increasing attentions. However, the studies of MNPs on the accumulation and migration of organic contaminants in edible plants are relatively scarce. Here, we investigated the impacts and mechanisms of MNPs of different concentrations and sizes on the uptake and toxicity of pyrene in water spinach. The results showed that MNPs had a promotion effect on the uptake of pyrene in various parts of water spinach, leading to the continuous accumulation of pyrene. The promotion effect of high concentration microplastics (MPs, 10 μm) is stronger than that of nanoplastics (NPs, 100 nm). The co-exposure of MNPs and pyrene increased the contents of malondialdehyde (MDA) in water spinach and aggravated the damage of lipid peroxidation. The co-exposure of MNPs and pyrene induced the increase of photosynthetic pigment contents and enhanced chloroplast activity. In addition, the co-exposure stimulated the overexpression of psbA and rbcL genes related to photosynthetic pigments, resulting in genotoxicity of water spinach. This study emphasized that the co-exposure of MNPs and pyrene caused harmful effects and high concentration of MPs caused greater toxicity to water spinach than NPs.
引用
收藏
页码：956 / 965
页数：9
相关论文
共 279 条
[21]  
Vijver MG(2018)Microplastics reduce short-term effects of environmental contaminants. Part II: polyethylene particles decrease the effect of polycyclic aromatic hydrocarbons on microorganisms Int J Environ Res Public Health 15 489-543
[22]  
Brown PJ(2006)Evaluation of fluoranthene phytotoxicity in pea plants by Hill reaction and chlorophyll fluorescence Chemosphere 65 104-917
[23]  
Long SM(2008)Physiological and biochemical responses of rice (Oryza sativa L.) to phenanthrene and pyrene Int J Phytoremediation 10 633-6173
[24]  
Spurgeon DJ(2021)Quantification of nanoplastic uptake in cucumber plants by pyrolysis gas chromatography/mass spectrometry Environ Sci Technol Lett 8 535-431
[25]  
Svendsen C(2015)Cellular and transcriptional responses in Microcystis aeruginosa exposed to two antibiotic contaminants Microb Ecol 69 907-1363
[26]  
Hankard PK(2017)Response of soil dissolved organic matter to microplastic addition in Chinese loess soil Chemosphere 185 6166-63
[27]  
Carr SA(2021)The joint toxicity of polyethylene microplastic and phenanthrene to wheat seedlings Chemosphere 282 424-1388
[28]  
Liu J(2020)Effects of microplastic fibers and drought on plant communities Environ Sci Technol 54 1355-10779
[29]  
Tesoro AG(2022)Quantitative tracing of uptake and transport of submicrometre plastics in crop plants using lanthanide chelates as a dual-functional tracer Nat Nanotechnol 17 60-1468
[30]  
de Souza Machado AA(2005)Polycyclic aromatic hydrocarbons in the surface soils from outskirts of Beijing, China Chemosphere 58 5610-1056
12345678910