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Ecological effects of microplastics on microorganism characteristics in sediments of the Daihai Lakeshore, China

Journal of Freshwater Ecology 2022 9 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 35 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Zhichao Wang, Zhichao Wang, Zhichao Wang, Fan Yang Zhichao Wang, Wenlu Li, Wenlu Li, Weiping Li, Fan Yang Wenlu Li, Weiping Li, Wenhuan Yang, Wenhuan Yang, Wenhuan Yang, Weiping Li, Weiping Li, Wenhuan Yang, Wenhuan Yang, Wenhuan Yang, Wenhuan Yang, Wenhuan Yang, Wenhuan Yang, Wenhuan Yang, Wenhuan Yang, Wenhuan Yang, Weiping Li, Wenhuan Yang, Jianlin Yang, Weiping Li, Wenhuan Yang, Wenhuan Yang, Fan Yang Jianlin Yang, Jianlin Yang, Jianlin Yang, Wenhuan Yang, Wenhuan Yang, Jianlin Yang, Jianlin Yang, Weiping Li, Jianlin Yang, Jianlin Yang, Fan Yang Wenhuan Yang, Weiping Li, Fan Yang

Summary

Researchers investigated the ecological effects of microplastics on sediment microorganisms along the Daihai Lakeshore in China, using Pearson correlation analysis and KEGG functional pathway analysis to link microplastic characteristics to microbial community structure. They found that small microplastic particles under 0.5 mm and sediment physicochemical properties were positively correlated with dominant microorganism abundance, and that higher microplastic contamination was associated with elevated DNA repair-related metabolic pathways.

Microplastics are contaminants of emerging concern. In particular, research on the ecological effects of microplastics on microorganisms has attracted widespread attention. In this study, the role of characteristics of microplastics and environmental factors on microorganisms in sediments along the Daihai Lakeshore were investigated. Microscopic identification of microplastics revealed that the most common characteristics of microplastics were fiber, black color and particle size <0.5 mm. The results of Pearson correlation analysis verified that the characteristics of microplastics with particle size <0.5 mm and the main physicochemical characteristics of the sediments (pH, salinity) were positively correlated with the abundance of dominant microorganisms (P < 0.05). In addition, Kyoto Encyclopedia of Genes and Genomes (KEGG) functional pathway analysis that the proportion of functional metabolic pathways related to DNA replication, recombination and reparation was higher in the sampling sites with higher microplastics abundance. This study will provide valuable information for assessing the microbial ecological effects of microplastics contamination in sediments.

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