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Effects of Microplastics on Microbial Community in Zhanjiang Mangrove Sediments

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Abstract

Microplastics are easily consumed by marine animals, thereby entering the food chain and endangering animal health. However, there are few studies focusing on the effects of microplastics in mangrove sediments on microbial communities. In order to study the influence of microplastics on microorganisms, microplastics and microorganisms were extracted from Zhanjiang (Guangdong Province, China) mangrove sediments and analyzed. The results showed that there were differences in Shannon and Simpson indices of the microbial community in microplastics (p < 0.05), and there were also differences between JG30_KF_CM45 and Natranaerovirga at the genus level, indicating that microplastics may affect the diversity and composition of microorganisms in sediments. In addition, FAPROTAX function prediction analysis showed that microplastics may affect the nitrification of microbial communities. The results from this study indicate that microplastics affected the diversity and richness of microorganisms in mangrove sediments, which provides an experimental basis for the relationship between microplastics and microorganisms.

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Acknowledgements

The authors are grateful to the staff of the College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China, for their technical assistance and support in the course of the study. This research was supported by Marine Economic Development Project of Guangdong Province Special Fund for Promoting High-quality Economic Development (Contract Grant Number: GDOE2019A52) and International Science and Technology Cooperation Project of Guangdong Province (Contract grant number: 2016A050502062).

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Correspondence to Jin-Jun Chen.

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Chen, MM., Nie, FH., Qamar, A. et al. Effects of Microplastics on Microbial Community in Zhanjiang Mangrove Sediments. Bull Environ Contam Toxicol 108, 867–877 (2022). https://doi.org/10.1007/s00128-021-03429-8

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  • DOI: https://doi.org/10.1007/s00128-021-03429-8

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