Intake of polyamide microplastics affects the behavior and metabolism of Drosophila
2022
Zhong, Lichao | Jin, Hui | Tang, Hao | Xu, Yifan | Liu, Xingyou | Shen, Jie
In this study, the effects of polyamide (PA) microplastics on Drosophila were studied by analysing their effects on feeding, fecundity, metabolism and spontaneous activity, using Drosophila as a model organism. In the 0.1 g/L and 1 g/L groups, there was an increase in the amount of food consumed by female Drosophila melanogaster and a decrease in the amount of food consumed by males in both the 0.1 g/L and 20 g/L groups. In the TG assay, males showed a significant decrease in the 10 g/L and 20 g/L groups. The male group showed a significant decrease in protein content in the 10 g/L and 20 g/L groups. Glucose content decreased in the female Drosophila 1g/L and 10 g/L groups. The highest concentration group of 20 g/L showed a decrease in glucose content in male Drosophila. Only the male Drosophila in the highest concentration group showed increased daytime activity. Egg production by females decreased significantly after feeding microplastic food. The above assays demonstrate the potential effects of PA microplastics on flies, where the consumption of food containing microplastics leads to oxidative stress and inflammation, thus affecting the nutritional metabolism of flies.
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