Evaluation of antioxidant capacity and digestive enzyme activities in Mytilus galloprovincialis exposed to nanoplastics under different patterns of hypoxia

doi:10.1016/j.marenvres.2022.105849

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	Evaluation of antioxidant capacity and digestive enzyme activities in Mytilus galloprovincialis exposed to nanoplastics under different patterns of hypoxia
	Wang, Xin 4,5,6; Zhang, Qianqian 5,6; Zhang, Tianyu 4,5,6; Shao, Shengyuan 3; Wang, Qing 5,6; Dong, Zhijun 2,5,6; Zhao, Jianmin 1,2,5,6
刊名	MARINE ENVIRONMENTAL RESEARCH
	2023
卷号	183 页码:8
关键词	Hypoxia Nanoplastics Fluctuation Bivalves Oxidative stress Digestion
ISSN号	0141-1136
DOI	10.1016/j.marenvres.2022.105849
通讯作者	Zhao, Jianmin(jmzhao@yic.ac.cn)
英文摘要	In the marine environment, plastic pollution may occur simultaneously with hypoxia. However, current ecological risk assessments of nanoplastics have rarely considered the impact of additional environmental fac-tors, such as hypoxia. In this study, we investigated the effect of polystyrene nanospheres (PS-NPs) on the digestive performance (antioxidant system and digestive enzymes) of mussels Mytilus galloprovincialis under different patterns of hypoxia (normoxia, constant hypoxia, and fluctuating hypoxia). The result showed that PS -NPs caused oxidative damage in the digestive glands of mussels, while all patterns of hypoxia exacerbated this oxidative damage. Activities of four digestive enzymes (alpha-amylase, cellulase, trypsin, and lipase) were examined. Among these, the activity of the alpha-amylase was inhibited by PS-NPs, and the inhibition was aggravated by all the hypoxia patterns. The cellulase activity and trypsin activity was enhanced by PS-NPs, and the increase was further stimulated by hypoxia. Lipase activity was not affected by PS-NPs alone, but significant inhibition was detected after the coexposure to PS-NPs and hypoxia. Conclusively, the combined stress of hypoxia and nano -plastics can significantly affect the digestive performance of mussels and may alter the mussel nutrient uptake strategy. Our work has provided new insight into the ecological risk assessment of plastics under global climate change.
WOS关键词	OXIDATIVE STRESS ; POLYSTYRENE NANOPARTICLES ; MICROPLASTICS ; POLLUTION ; RESPONSES ; MUSSEL ; ACID ; TRANSFERASES ; METABOLISM ; ORGANISMS
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Toxicology
语种	英语
WOS记录号	WOS:000911740500001
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/32501]
专题	中国科学院牟平海岸带环境综合试验站
通讯作者	Zhao, Jianmin
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China 3.China Agr Univ, Yantai Inst, Yantai 264670, Shandong, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Biol Resources Utilizat, Yantai 264003, Shandong, Peoples R China 6.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Muping Coastal Environm Res Stn, Yantai 264117, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xin,Zhang, Qianqian,Zhang, Tianyu,et al. Evaluation of antioxidant capacity and digestive enzyme activities in Mytilus galloprovincialis exposed to nanoplastics under different patterns of hypoxia[J]. MARINE ENVIRONMENTAL RESEARCH,2023,183:8.
APA	Wang, Xin.,Zhang, Qianqian.,Zhang, Tianyu.,Shao, Shengyuan.,Wang, Qing.,...&Zhao, Jianmin.(2023).Evaluation of antioxidant capacity and digestive enzyme activities in Mytilus galloprovincialis exposed to nanoplastics under different patterns of hypoxia.MARINE ENVIRONMENTAL RESEARCH,183,8.
MLA	Wang, Xin,et al."Evaluation of antioxidant capacity and digestive enzyme activities in Mytilus galloprovincialis exposed to nanoplastics under different patterns of hypoxia".MARINE ENVIRONMENTAL RESEARCH 183(2023):8.