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| Toxic effects of polyethylene microplastics to the intestinal microbiota of Litopenaeus vannamei |
| Received:January 16, 2025 |
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| KeyWord:polyethylene;microplastics;Litopenaeus vannamei;intestinal microbiota;toxic effect |
| Author Name | Affiliation | E-mail | | PAN Yifeng | Shanwei Marine Industry Institute, Shanwei 516600, China
Shanwei Institute of Technology, Shanwei 516600, China | | | LIU Xiaojie | College of Life Science and Technology, Jinan University, Guangzhou 510632, China | | | HUANG Xianpei | Shanwei Marine Industry Institute, Shanwei 516600, China
College of Life Science and Technology, Jinan University, Guangzhou 510632, China
Shanwei Institute of Technology, Shanwei 516600, China | xianpeihuang@163.com | | ZHAO Haiming | Shanwei Marine Industry Institute, Shanwei 516600, China
College of Life Science and Technology, Jinan University, Guangzhou 510632, China | zhaohm99@jnu.edu.cn | | MO Cehui | Shanwei Marine Industry Institute, Shanwei 516600, China
College of Life Science and Technology, Jinan University, Guangzhou 510632, China | |
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| Abstract: |
| To elucidate the ecotoxicological influences of microplastics（MPs） on aquaculture organisms, metagenomic analysis was employed to explore the toxic effects of polyethylene microparticles（PE-MPs）on the intestinal microbiota of Litopenaeus vannamei. The results indicated that as the concentration of PE-MPs increased, the total nitrogen concentration in the aquaculture water progressively rose, while the pH and salinity levels gradually declined. The intestinal microbiota of L. vannamei was dominated by bacteria（99.98%）, with a minor presence of bacteriophages and fungi. The composition and community structure of the intestinal microbiota of L. vannamei were significantly changed by PE-MPs contamination. Eight strains, including Donghicola eburneusa, were identified as potential biomarkers indicative of PE-MPs contamination. Metabolic pathways accounted for the highest proportion（>75%）in the intestinal microbiota′ s functional pathways. Significant changes were caused in the functional pathways of the intestinal microbiota by PE-MPs contamination. Among them, the relative abundance of five pathways such as amino acid metabolism increased significantly, and the relative abundances of terpene and ketone metabolic pathways decreased significantly. |
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