Jae Woo Jung , Qikun Xing , Ji-Sook Park , Charles Yarish , Jang Kyun Kim
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引用次数: 0
摘要
本研究旨在探讨纳米塑料（NPs）对土鳖虫（Grateloupia turuturu）和软骨鱼（Chondrus ocellatus）的生长、光合作用、氧化应激和抗氧化酶的影响。G. turuturu 和 C. ocellatus 表面特征的差异可能会影响塑料在其表面的附着。在 5 种不同的 NP 浓度（0、20、200、2000、20000 ng/L）下培养海藻样品 21 天。纳米塑料在 C. ocellatus 表面的累积量高于 G. turuturu。最高浓度的纳米粒子（20000 ng/L）抑制了 C. ocellatus 的生长和光合作用活性。在相同浓度下，氧化应激导致抗氧化酶活性增加。在所有测试浓度下，G. turuturu 都不受 NPs 的影响。根据这些结果，纳米塑料的毒性效应可能具有物种特异性。毒性取决于大型藻类在其表面积累纳米塑料的能力。
Physiological responses of Grateloupia turuturu and Chondrus ocellatus to nano-plastics
The objective of this study is to investigate the effect of nano-plastics (NPs) on the growth, photosynthesis, oxidative stress and antioxidant enzymes in Grateloupia turuturu and Chondrus ocellatus. Difference of surface characteristics between G. turuturu and C. ocellatus may affect adherence of plastics to their surface. The seaweed samples were cultivated at 5 different NP concentrations (0, 20, 200, 2000, 20000 ng/L) for 21 days. The accumulation of nano-plastics on surface of C. ocellatus was higher than that of G. turuturu. The highest concentration of NPs (20000 ng/L) inhibited the growth and photosynthesis activity of C. ocellatus. At the same concentrations, oxidative stress was caused with increase of antioxidant enzyme activities. G. turuturu was not affected by NPs at all tested concentrations. Based on these results, toxic effects of nano-plastics may be species specific. Toxicity is dependent on the capacity of macroalgae to accumulate nano-plastics on their surface.
期刊介绍：
Marine Environmental Research publishes original research papers on chemical, physical, and biological interactions in the oceans and coastal waters. The journal serves as a forum for new information on biology, chemistry, and toxicology and syntheses that advance understanding of marine environmental processes.
Submission of multidisciplinary studies is encouraged. Studies that utilize experimental approaches to clarify the roles of anthropogenic and natural causes of changes in marine ecosystems are especially welcome, as are those studies that represent new developments of a theoretical or conceptual aspect of marine science. All papers published in this journal are reviewed by qualified peers prior to acceptance and publication. Examples of topics considered to be appropriate for the journal include, but are not limited to, the following:
– The extent, persistence, and consequences of change and the recovery from such change in natural marine systems
– The biochemical, physiological, and ecological consequences of contaminants to marine organisms and ecosystems
– The biogeochemistry of naturally occurring and anthropogenic substances
– Models that describe and predict the above processes
– Monitoring studies, to the extent that their results provide new information on functional processes
– Methodological papers describing improved quantitative techniques for the marine sciences.
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