Comparison of Short- and Long-Term Toxicity of Microplastics with Different Chemical Constituents on Button Polyps. (Protopalythoa sp.),ACS Earth and Space Chemistry

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Comparison of Short- and Long-Term Toxicity of Microplastics with Different Chemical Constituents on Button Polyps. (Protopalythoa sp.)
ACS Earth and Space Chemistry ( IF 2.9 ) Pub Date : 2020-12-16 , DOI: 10.1021/acsearthspacechem.0c00213
Shiqi Jiang ₁ , Yuanyuan Zhang _{2,

3} , Limin Feng ₁ , Lei He ₁ , Chunxia Zhou _{1,

2} , Pengzhi Hong _{1,

2} , Shengli Sun ₁ , Hui Zhao ₁ , Yan-Qiu Liang ₁ , Lei Ren ₁ , Yueqin Zhang ₁ , Jinjun Chen ₁ , Chengyong Li _{1,

2,

3}

Affiliation

To date, several studies have investigated the influence of micoplastics (MPs) on scleractinian coral. However, research of MPs on button polyps (Protopalythoa sp.) is still in its infancy. This study aimed to assess the toxic effects induced by the presence of three types of MPs, namely, poly(vinyl chloride) (PVC), polyethylene (PE), and poly(methyl methacrylate) (PMMA), on button polyps (Protopalythoa sp.) after short (96 h)- and long (28 day)-term exposure. The results showed that MPs can adhere to the coral surface and enter the coral body, which causes coral to secrete mucus and lose symbiotic zooxanthellae. Moreover, the chlorophyll content of coral and the levels of several metabolic-related enzymes including glutathione (GSH), superoxide dismutase (SOD), lipid peroxide (LPO), glutathione S-transferase (GST), and alkaline phosphatase (AKP) were measured. The results indicate type- and time-dependent cytotoxic effects of MPs. On short-term exposure, the MPs cause the corals to produce a mass of peroxides, which also initiate their immune and detoxification systems. After long-term exposure, the immunocompetence, photosynthetic efficiency, and oxidation resistance of corals were damaged to varying degrees by MPs.

中文翻译：

不同化学成分对纽扣息肉的微塑料的短期和长期毒性的比较。（Protopalythoa sp。）

迄今为止，已有几项研究调查了微塑性（MPs）对巩膜珊瑚的影响。但是，关于纽扣息肉（Protopalythoa sp。）的国会议员的研究仍处于起步阶段。这项研究旨在评估由三种类型的MP引起的对纽扣息肉的毒性作用，即聚氯乙烯（PVC），聚乙烯（PE）和聚甲基丙烯酸甲酯（PMMA）对按钮息肉（Protopalythoa短时（96小时）和长时（28天）暴露。结果表明，MPs可以粘附在珊瑚表面并进入珊瑚体内，从而导致珊瑚分泌粘液并失去共生的黄原虫。此外，还测量了珊瑚的叶绿素含量以及包括谷胱甘肽（GSH），超氧化物歧化酶（SOD），脂质过氧化物（LPO），谷胱甘肽S-转移酶（GST）和碱性磷酸酶（AKP）在内的几种代谢相关酶的水平。。结果表明MPs的类型和时间依赖性细胞毒性作用。在短期暴露下，国会议员使珊瑚产生大量的过氧化物，这也启动了它们的免疫和排毒系统。长期暴露后，MPs破坏了珊瑚的免疫能力，光合作用效率和抗氧化性。

更新日期：2021-01-21

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