海洋科学2024，Vol.48Issue(6)：33-42,10.DOI:10.11759/hykx20220728005
微塑料对四角蛤蜊滤食、呼吸和免疫指标的影响
Effects of microplastics on filtration,respiratory,and immune indexes of Mactra veneriformis
摘要
Abstract
To determine the effects of microplastics on the physiological behavior and immune system activity of Mactra veneriformis,the effects of polystyrene(PS)exposure at different concentrations(1×104 molecules/L and 1 ×106 molecules/L)and particle sizes(1 μm and 80 nm)on the filtration rate,respiration rate,malondialdehyde(MDA)content and impacts on activities of enzymes such as catalase(CAT),superoxide dismutase(SOD),acid phosphatase(ACP),alkaline phosphatase(AKP)were investigated.The results revealed that only the low concentration group of 1 μm had a significant effect on the filtration rate;the respiration rate was significantly increased under exposure to large particles of polystyrene at high con-centrations.The activities of SOD and CAT both increased significantly in the early stages of the experiment and then de-creased.ACP activity increased significantly in the early stages and gradually decreased.The changes were not statistically significant.AKP activity changed significantly after 3 days,and the activity in the group exposed to low concentrations was higher than that of the group exposed to high concentrations.Moreover,MDA content significantly increased in the group exposed to high concentrations compared to the group exposed to low concentrations,and MDA content of the group ex-posed to small polystyrene particles increased compared to the group exposed to large particles.Different concentrations,particle sizes,and exposure times affected multiple physiological indicators.MDA content of M.veneriformis gills can be used as a reliable indicator to assess marine microplastic pollution.关键词
微塑料/四角蛤蜊/滤食率/呼吸率/免疫系统Key words
microplastics/Mactra veneriformis/filtration rate/respiration rate/immune system分类
资源环境引用本文复制引用
唐瑞锴,杨光,孙中伟,唐佳伟,王鑫,马晓娜,冯志华..微塑料对四角蛤蜊滤食、呼吸和免疫指标的影响[J].海洋科学,2024,48(6):33-42,10.基金项目
江苏省产学研合作项目(BY2020428) （BY2020428）
江苏高校优势学科建设工程项目 （）
江苏省研究生科研与实践创新计划项目(KYCX20_2882)Jiangsu Industry University Research Cooperation Project No.BY2020428 （KYCX20_2882）
Priority Academic Program Development of Jiangsu Higher Education Institutions,Postgraduate Research&Practice Innovation Pro-gram of Jiangsu Province,China,No.KYCX20_2882 （）
