| 潘一峰,刘晓洁,黄献培,赵海明,莫测辉.聚乙烯微粒对凡纳滨对虾肠道菌群的毒性效应[J].农业环境科学学报,2025,44(3):849-858. |
| 聚乙烯微粒对凡纳滨对虾肠道菌群的毒性效应 |
| Toxic effects of polyethylene microplastics to the intestinal microbiota of Litopenaeus vannamei |
| 投稿时间：2025-01-16 |
| DOI：10.11654/jaes.2025-0054 |
| 中文关键词: 聚乙烯 微塑料 凡纳滨对虾 肠道菌群 毒性效应 |
| 英文关键词: polyethylene microplastics Litopenaeus vannamei intestinal microbiota toxic effect |
| 基金项目:广东省普通高校青年创新人才项目（2019GKQNCX117）；汕尾职业技术学院高层次人才科研启动专项（SKQD2021B-028） |
| 作者 | 单位 | E-mail | | 潘一峰 | 汕尾市海洋产业研究院, 广东 汕尾 516600
汕尾职业技术学院, 广东 汕尾 516600 | | | 刘晓洁 | 暨南大学生命科学技术学院, 广州 510632 | | | 黄献培 | 汕尾市海洋产业研究院, 广东 汕尾 516600
暨南大学生命科学技术学院, 广州 510632
汕尾职业技术学院, 广东 汕尾 516600 | xianpeihuang@163.com | | 赵海明 | 汕尾市海洋产业研究院, 广东 汕尾 516600
暨南大学生命科学技术学院, 广州 510632 | zhaohm99@jnu.edu.cn | | 莫测辉 | 汕尾市海洋产业研究院, 广东 汕尾 516600
暨南大学生命科学技术学院, 广州 510632 | |
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| 中文摘要: |
| 为查明养殖环境中微塑料（MPs）对水产养殖生物的生态毒性效应，利用宏基因组测序技术探究聚乙烯微粒（PE-MPs）对凡纳滨对虾肠道菌群的毒性效应。结果表明：随 PE-MPs的污染浓度增加，养殖水体总氮浓度逐渐上升，而 pH 值和盐度逐渐降低。凡纳滨对虾肠道菌群以细菌（99.98%）为主，还有少量噬菌体和真菌。PE-MPs 污染显著改变了凡纳滨对虾肠道菌群的组成和群落结构特征；Donghicolaeburneusa等 8个菌株均可作为聚乙烯污染凡纳滨对虾肠道菌群的生物标记物。凡纳滨对虾肠道菌群功能通路中代谢作用占比最高（>75%），PE-MPs污染造成凡纳滨对虾肠道菌群功能通路的显著改变，其中氨基酸代谢等5个通路的相对丰度显著上升，萜类和酮类化合物代谢通路的相对丰度显著下降。 |
| 英文摘要: |
| 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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