Effects of nanoplastics on the gut microbiota of Pacific white shrimp Litopenaeus vannamei
文献类型： 外文期刊
作者： Zhu, Chenxi 1 ; Li, Yiming 2 ; Liu, Guoxing 3 ; Abdullah, Anisah Lee 1 ; Jiang, Qichen 3 ;
作者机构： 1.Univ Sains Malaysia, Sch Humanities, Geog, Gelugor, Penang, Malaysia
2.Chinese Acad Fisheries Sci, Fishery Machinery & Instrument Res Inst, Shanghai, Peoples R China
3.Freshwater Fisheries Res Inst Jiangsu Prov, Nanjing, Peoples R China
4.Low Temp Germplasm Bank Important Econ Fish Freshw, Nanjing, Peoples R China
关键词： Nanoplastics; Litopenaeus vannamei; Gut microbes
期刊名称：PEERJ （ 影响因子：2.7； 五年影响因子：3.1 ）
ISSN： 2167-8359
年卷期： 2024 年 12 卷
页码：
收录情况： SCI
摘要： Nanoplastics (NPs) are an abundant, long-lasting, and widespread type of environmental pollution that is of increasing concern because of the serious threats they might pose to ecosystems and species. Identifying the ecological effects of plastic pollution requires understanding the effects of NPs on aquatic organisms. Here, we used the Pacific white shrimp (Litopenaeus vannamei) as a model species to investigate whether ingestion of polystyrene NPs affects gut microbes and leads to metabolic changes in L. vannamei. The abundance of Proteobacteria increased and that of Bacteroidota decreased after NPs treatment. Specifically, Vibrio spp., photobacterium spp., Xanthomarina spp., and Acinetobacter spp. increased in abundance, whereas Sulfitobacter spp. and Pseudoalteromonas spp. decreased. Histological observations showed that L. vannamei exposed to NP displayed a significantly lower intestinal fold height and damaged intestinal structures compared with the control group. Exposure to NPs also stimulated alkaline phosphatase, lysozyme, and acid phosphatase activity, resulting in an immune response in L. vannamei. In addition, the content of triglycerides, total cholesterol, and glucose were significantly altered after NP exposure. These results provided significant ecotoxicological data that can be used to better understand the biological fate and effects of NPs in L. vannamei.
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