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Impact of polyethylene microplastics on coral Goniopora columna causing oxidative stress and histopathology damages

The Science of The Total Environment 2022 51 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 55 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Chiu‐Wen Chen, Ya‐Ting Chen, Chiu‐Wen Chen, De‐Sing Ding, De‐Sing Ding, Yee Cheng Lim, Chiu‐Wen Chen, Yee Cheng Lim, Ya‐Ting Chen, Chiu‐Wen Chen, Chiu‐Wen Chen, De‐Sing Ding, De‐Sing Ding, De‐Sing Ding, Shuchen Hsieh, Chiu‐Wen Chen, Yee Cheng Lim, Chiu‐Wen Chen, Ya‐Ting Chen, Cheng-Di Dong, De‐Sing Ding, De‐Sing Ding, De‐Sing Ding, Chiu‐Wen Chen, Chiu‐Wen Chen, Yee Cheng Lim, Chiu‐Wen Chen, Yee Cheng Lim, Chiu‐Wen Chen, Chiu‐Wen Chen, De‐Sing Ding, Chiu‐Wen Chen, De‐Sing Ding, Chiu‐Wen Chen, Shuchen Hsieh, Reeta Rani Singhania, Yee Cheng Lim, Chiu‐Wen Chen, Yee Cheng Lim, Cheng–Di Dong Yee Cheng Lim, Yee Cheng Lim, Yee Cheng Lim, Yee Cheng Lim, Yee Cheng Lim, Reeta Rani Singhania, Cheng-Di Dong, Ya‐Ting Chen, Ya‐Ting Chen, Ya‐Ting Chen, Chiu‐Wen Chen, Chiu‐Wen Chen, Reeta Rani Singhania, Reeta Rani Singhania, Cheng–Di Dong, Yee Cheng Lim, Chiu‐Wen Chen, Cheng–Di Dong Cheng–Di Dong De‐Sing Ding, De‐Sing Ding, Cheng-Di Dong, Cheng–Di Dong, Yee Cheng Lim, Shuchen Hsieh, Cheng–Di Dong, Shuchen Hsieh, Cheng–Di Dong, Yee Cheng Lim, Cheng–Di Dong, Chiu‐Wen Chen, Cheng–Di Dong Chiu‐Wen Chen, Shuchen Hsieh, Shuchen Hsieh, Shuchen Hsieh, Chiu‐Wen Chen, Shuchen Hsieh, Cheng–Di Dong, Shuchen Hsieh, Chiu‐Wen Chen, Shuchen Hsieh, Reeta Rani Singhania, Shu-Ling Hsieh, Reeta Rani Singhania, Cheng–Di Dong, Cheng–Di Dong, Cheng–Di Dong, Chiu‐Wen Chen, Chiu‐Wen Chen, Chiu‐Wen Chen, Cheng–Di Dong Cheng–Di Dong Cheng–Di Dong Cheng–Di Dong Cheng–Di Dong Chiu‐Wen Chen, Chiu‐Wen Chen, Chiu‐Wen Chen, Shu‐Ling Hsieh, Shu‐Ling Hsieh, Cheng–Di Dong Reeta Rani Singhania, Ya‐Ting Chen, Cheng-Di Dong, Cheng–Di Dong Cheng-Di Dong, Cheng–Di Dong, Cheng–Di Dong, Shu-Ling Hsieh, Cheng-Di Dong, Cheng–Di Dong Cheng–Di Dong, Cheng–Di Dong Cheng–Di Dong Cheng–Di Dong, Cheng–Di Dong, Cheng–Di Dong, Cheng-Di Dong, Cheng-Di Dong, Cheng–Di Dong, Cheng-Di Dong, Shu‐Ling Hsieh, Cheng–Di Dong Shu‐Ling Hsieh, Shu-Ling Hsieh, Cheng-Di Dong, Cheng-Di Dong, Cheng–Di Dong

Summary

Researchers exposed the coral Goniopora columna to different concentrations of polyethylene microplastics over seven days. They found that the microplastics accumulated on and inside the corals, reduced polyp length, disrupted zooxanthellae density, and triggered oxidative stress as indicated by changes in antioxidant enzyme activity and increased tissue damage. The findings suggest that microplastic pollution poses a significant threat to coral health through both physical and biochemical pathways.

Polymers

In recent years, the increase of microplastics in the sea exerted a negative impact on coral health. This study has been undertaken to analyze the impact of microplastics on corals. Here, Goniopora columna was exposed to different concentrations of polyethylene microplastics (PE-MP). The daily polyps length and adaptability were recorded. Analysis of the zooxanthellae density and antioxidant activity of coral was done after 1, 3, 5 and 7 days. Further tissue morphology and accumulation of PE-MP were analyzed. The results showed that PE-MP at different concentrations can be adsorbed on the surface of corals and enter inside corals after 7 days. PE-MP at different concentrations reduced polyps length, adaptability and cause the changes in the density of zooxanthellae to be the reason for unbalancing of corals. PE-MP at different concentrations reduced the superoxide dismutase (SOD) activity after exposure to 1 day. PE-MP increased the catalase (CAT) activity at 100 mg/L after exposure; even after reducing the concentration has the same effect. PE-MP at various concentrations increased the glutathione peroxidase (GPx) activity after exposure to 5 and 7 days. It also increased the glutathione transferase (GST) and glutathione (GSH) activity after exposure to 5 and 7 days. PE-MP at different concentrations increased the malondialdehyde (MDA) content after exposure from 1 to 7 days. Analysis of tissue morphology and tissue accumulation shows that different concentrations of PE-MP cause mesenteric atrophy, vacuole, and accumulation in the coral mesenteric. These results indicate that the PE-MP can impact the antioxidant system and hampers the function of enzymes responsible for detoxification of G. columna, increase lipid peroxide content and also cause tissue damage through accumulating in the coral mesenteric.

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