The combination of microplastics and glyphosate affects the microbiome of soil inhabitant Enchytraeus crypticus

文献类型： 外文期刊

第一作者： Yang, Huihui

作者： Yang, Huihui;Qin, Guoyan;Zhang, Ziyao;Chen, Bingfeng;Lei, Chaotang;Liu, Meng;Cui, Rui;Sun, Liwei;Lu, Tao;Qian, Haifeng;Yang, Huihui;Tang, Tao;Zheng, Guogang;Zhang, Qi;Qian, Haifeng;Xia, Shengjie;Peijnenburg, W. J. G. M.

作者机构：

关键词： Microplastic; Glyphosate; Synergistic effect; Soil fauna; Gut microbiome

期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：11.3； 五年影响因子：12.4 ）

ISSN： 0304-3894

年卷期： 2025 年 489 卷

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收录情况： SCI

摘要： Microplastics and pesticides are emerging contaminants that threaten soil ecosystems, yet their combined effects on soil health and soil fauna remain poorly understood. In this study, we constructed a microcosm to assess the individual and combined effects of microplastics and glyphosate on soil physicochemical properties, microbial communities, and the gut microbiome of soil invertebrates (Enchytraeus crypticus). Biodegradable polylactic acid (PLA) and conventional polyethylene terephthalate (PET) were introduced at environmentally relevant concentrations. Our results revealed that PLA had a stronger disruptive effect on soil microbial communities than PET, altering microbial diversity and functional composition. Glyphosate, in contrast, primarily influenced the gut microbiome of E. crypticus, reducing microbial diversity and inducing oxidative stress. Combined exposure to microplastics and glyphosate significantly intensified oxidative stress but did not amplify microbial dysbiosis beyond the effects of microplastics alone. Compare to PET, PLA combined with glyphosate had the most pro- nounced effects on both soil and gut microbiomes, suggesting that biodegradable microplastics may pose greater ecological risks than conventional microplastics when used alongside pesticides. These findings underscore the need for a reassessment of biodegradable plastic use in agriculture and highlight the complex interactions be- tween microplastics and pesticides in shaping soil ecosystem health.

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