Nanoplastics and antibiotics are among the most abundant chemical pollutants of soils, but their interplay with global warming remains poorly understood. Moreover, little is known about the gut microbiome of soil fauna and how it might respond to warming and these pollutants. By exposing ecotoxicological model F. candida to either polystyrene or colistin, at 20 and 22 ℃ for two months, Ferrín et al. (Article: 240269) report that warming is a major driver modulating the impacts of the nanoplastics and antibiotic. Surprisingly, Gram-negative bacteria targeted by colistin were not globally affected. And at genus-level, Wolbachia controlled the compositional shifts under nanoplastic addition, potentially driving the response of the gut microbiome. Ferrín et al. illustrate how the gut microbiomes of springtails are sensitive communities responsive to xenobiotics and provide evidence of the need to combine multiple factors of global change operating simultaneously if we are to understand the responses of communities of soil arthropods and their microbiomes.
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