Gradual effects of gradient concentrations of perfluorooctane sulfonate on the antioxidant ability and gut microbiota of red claw crayfish ( Cherax quadricarinatus )
文献类型： 外文期刊
作者： Zhu, Chenxi 2 ; Lv, Weiwei 3 ; Hong, Shuang 1 ; Han, Mingming 2 ; Song, Weiguo 1 ; Liu, Chengbin 1 ; Yao, Chunxia 1 ; Jiang, Qichen 2 ;
作者机构： 1.Shanghai Acad Agr Sci, Inst Agrifood Stand & Testing Technol, Shanghai 201403, Peoples R China
2.Univ Sains Malaysia, Sch Humanities, Geog, Minden 11800, Penang, Malaysia
3.Shanghai Acad Agr Sci, Ecoenvironm Protect Res Inst, Shanghai 201403, Peoples R China
4.Freshwater Fisheries Res Inst Jiangsu Prov, 79 Chating East St, Nanjing 210017, Peoples R China
5.Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201306, Peoples R China
关键词： Gut microbes; PFOS; Antioxidant response; Cherax quadricarinatus
期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：9.8； 五年影响因子：9.6 ）
ISSN： 0048-9697
年卷期： 2024 年 931 卷
页码：
收录情况： SCI
摘要： Perfluorooctane sulfonate (PFOS) is a typical persistent organic pollutant that is characterized by environmental persistence, bioaccumulation, and toxicity. In this study, we investigated the gut microbial response of the red claw crayfish Cherax quadricarinatus after 28 days of exposure to 0 ng/L, 1 ng/L, 10 mu g/L, or 10 mg/L of PFOS as a stressor. We measured oxidative stress-related enzyme activities and expression of molecules related to detoxification mechanisms to evaluate the toxic effects of PFOS. We found that PFOS disturbed microbial homeostasis in the gut of C. quadricarinatus, resulting in increased abundance of the pathogen Shewanella and decreased abundance of the beneficial bacterium Lactobacillus. The latter especially disturbed amino acid transport and carbohydrate transport. We also found that the activities of glutathione S-transferase and glutathione peroxidase were positively correlated with the expression levels of cytochrome P450 genes ( GST1-1 , GSTP , GSTK1 , HPGDS , UGT5 ), which are products of PFOS-induced oxidative stress and play an antioxidant role in the body. The results of this study provided valuable ecotoxicological data to better understand the biological fate and effects of PFOS in C. quadricarinatus .
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