Biological Effect of Microplastics with Different Functional Groups on the Bacterial Communities and Metabolic Functions of Zebrafish（Danio rerio）Embryos

被引：1

作者：

Yan Z.-H. ^{[1
,2
]}

Zhang Y. ^{[1
,2
]}

Bao X.-H. ^{[3
]}

Zhu P.-Y. ^{[1
,2
]}

Chen Y.-F. ^{[1
,2
]}

机构：

[1] Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, Hohai University, Nanjing

[2] College of Environment, Hohai University, Nanjing

[3] Shanghai Investigation, Design & Research Institute Co.，Ltd., Shanghai

来源：

Huanjing Kexue/Environmental Science | 2024年 / 45卷 / 03期

关键词：

accumulation; bacterial community; functional groups; metabolites; microplastic;

D O I：

10.13227/j.hjkx.202304058

中图分类号：

学科分类号：

摘要：

To investigate the influences of functional groups on the biological effects caused by microplastics，the accumulation of three polystyrene microplastics（PS，PS—NH2，and PS—COOH）in zebrafish（Danio rerio）embryos were analyzed，and then the responses of metabolic functions and microbial communities in zebrafish larvae were revealed using the combination of the microbiome and metabolome methods. The results showed that all microplastics could accumulate in zebrafish with concentrations ranging from 143 to 175 μg·g−1，and there were no significant differences in the accumulation potentials among different PS treatments. Exposure to plain PS significantly affected the metabolic capacity of aminoglycosides in zebrafish larvae，whereas the metabolic processes of amino acids were affected by PS—NH2. In the PS—COOH treatment，the metabolic pathways of the tricarboxylic acid cycle，amino acids，and glycolysis in zebrafish were markedly altered. The metabolic functions of zebrafish larvae were changed by all PS microplastics，resulting in toxic effects on zebrafish，and the functional group modification of microplastics may have further enhanced these toxicities. Compared to that in the control，exposure to PS—NH2 significantly reduced the diversity of microbial communities in zebrafish larvae and increased the proportion of Proteobacteria in the composition，leading to an imbalance of the bacterial community in zebrafish and thus disrupting the metabolic functions in the fish. Therefore，the functional modifications of microplastics may significantly alter the related stresses on aquatic organisms，leading to unpredictable ecological risks. © 2024 Science Press. All rights reserved.

引用

页码：1859 / 1868

页数：9

共 53 条

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