文献类型：期刊文献

英文题名：Effects of acute microplastic exposure on physiological parameters in Tubastrea aurea corals

作者：Liao, Baolin[1];Wang, Junjie[1];Xiao, Baohua[1];Yang, Xiaodong[1,2];Xie, Ziqiang[1];Li, Dongdong[1];Li, Chengyong[1,2]

机构：[1]Guangdong Ocean Univ, Shenzhen Inst, Shenzhen 518114, Guangdong, Peoples R China;[2]Guangdong Ocean Univ, Sch Chem & Environm, Zhanjiang 524088, Peoples R China

年份：2021

卷号：165

外文期刊名：MARINE POLLUTION BULLETIN

收录：SCI-EXPANDED(收录号：WOS:000636284000005)、、EI(收录号：20210809972439)、Scopus(收录号：2-s2.0-85101128734)、WOS

基金：The authors were grateful to all of the laboratory members for their continuous technical advice and helpful discussions. The study was funded by the Guangdong Oceanic and Fishery Administration (project number: A201708D06) , China Guangdong MEPP Fund (project number: GDOE [2019] A01) , Shenzhen Science and Technology R&D Fund (project number: KJYY20180213182720347) , Shenzhen Science and Technology R&D Fund (project number: JCYJ20200109144803833) , Shenzhen Science and Technology R&D Fund (project number: KCXFZ202002011011057) , Guangdong Key Area R & D Program Project (Project number:2020B1111030002) and China Guangdong OEDP Fund (project number: GDNRC [2020] 040) .

语种：英文

外文关键词：Microplastics; Tubastrea aurea; Antioxidant capacity; Immune system; Calcification; Energy metabolism

外文摘要：Pollution of marine environments with microplastic particles has increased rapidly during the last few decades and its impact on marine lives have recently gained attention in both public and scientific community. Scleractinian corals are the foundation species of coral reef ecosystems that are greatly affected by the microplastics (MPs), yet little is known about the effects of microplastics on the coral azooxanthellate. In the present study, effects of the exposure and ingestion of polyvinyl chloride (PVC), polyethylene (PE), polyethylene terephthalate (PET), and polyamide 66 (PA66) were studied on the physiological responses of Tubastrea aurea. Our results shows that coral ingested microplastics in four treatment groups and the exposure of microplastics inhibited the antioxidant capacity, immune system, calcification and energy metabolism of the coral Tubastrea aurea. Superoxide dismutase (SOD), catalase (CAT), alkaline phosphatase (AKP), and total antioxidant capacity (TAC) were reduced by 29.4%, 35.5%, 73.9%, and 52.2% in the corals exposed to PVC, respectively. PET microplastics impacted more severely on pyruvate kinase (PK), Na, K-ATPase (Na, K-ATP), Ca-ATPase (Ca-ATP), Mg-ATPase (Mg-ATP), Ca-Mg-ATPase (Ca, Mg-ATP), and glutathione (GSH). Activity of these enzymes decreases to 89.6%, 66.7%, 63.6%, 60.4%, 48.4%, and 50.5% respectively. We anticipate that this work will provide important preliminary data for better understanding the effects of MPs on stony corals azooxanthellate.