Enzymatic Stress Responses of Coreius guichenoti to Microplastics with Different Particle Sizes
文献类型： 外文期刊
作者： Wu, Wenqiong 1 ; Qiu, Junqiang 1 ; Lin, Yue 1 ; Li, Xike 1 ; Li, Wenjuan 1 ; Ma, Keyi 3 ; Duan, Yuanliang 4 ; Fu, Yuanshuai 1 ;
作者机构： 1.Shanghai Ocean Univ, Key Lab Freshwater Aquat Genet Resources, Minist Agr & Rural Affairs, Shanghai 201306, Peoples R China
2.Shanghai Ocean Univ, Key Lab Explorat & Utilizat Aquat Genet Resources, Minist Educ, Shanghai 201306, Peoples R China
3.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Key Lab East China Sea Fishery Resources Exploitat, Minist Agr & Rural Affairs, Shanghai 200090, Peoples R China
4.Sichuan Acad Agr Sci, Fisheries Res Inst, Chengdu 611731, Peoples R China
关键词： Coreius guichenoti; stress response; stress related enzyme; digestive enzyme; microplastics
期刊名称：TOXICS （ 影响因子：4.6； 五年影响因子：4.8 ）
ISSN：
年卷期： 2023 年 11 卷 12 期
页码：
收录情况： SCI
摘要： The wild population resources of Coreius guichenoti have sharply declined in recent decades, and any negative factors may have a significant impact on their survival. In this study, the enzymatic stress responses of C. guichenoti to 25 and 48 mu m polyethylene fragments were explored for the first time. This was achieved by evaluating the changes in physiological and biochemical indicators of the species in response to the environmental stimuli of microplastics. In this study, we observed an early stress response in the external tissues of C. guichenoti following exposure to microplastics. The TP content in skin and muscle and the MDA content in skin, gill and muscle initially showed a significant increase. The skin, gill, and muscle exhibited greater stress responses to M5 particles, whereas M3 particles caused a greater response in the intestine and especially the liver. After the removal of microplastic exposure, the stress state of the C. guichenoti would be alleviated in a short period, but it could not fully recover to the pre-exposure level. In summary, microplastics pose a significant threat to C. guichenoti. While their negative effects can be alleviated by the removal of microplastics exposure, full recovery does not occur in a short period. Continuous monitoring of microplastics in natural waters and targeted aquatic ecological restoration are essential to ensure the normal growth and reproduction of the wild population of C. guichenoti.
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