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Environmental Risks of Plastisphere Viruses: Carrier Effects, Virus–Host Interactions, and Mechanisms of Resistance Dissemination
Original title: Environmental Risks of Plastisphere Viruses: Carrier Effects, Virus–Host Interactions, and Mechanisms of Resistance Dissemination
Summary
Tiny plastic particles floating in water and soil quickly get coated with slimy biofilms that can attract and concentrate viruses, potentially turning microplastics into rafts that help spread disease-causing germs and antibiotic-resistant genes. This review pulls together existing research on the topic, and while the evidence so far is mostly based on indirect genetic analysis rather than direct proof, it raises an important flag: microplastic pollution might be doing more than just littering our environment—it could be helping harmful viruses travel and share dangerous traits. More hands-on lab testing is needed to confirm how big a real-world health risk
Once microplastics enter environmental systems, they rapidly develop plastisphere biofilms that provide a distinct interface for viral attachment, enrichment, and transport. Compared with bacterial communities in the plastisphere, the occurrence and ecological roles of viruses have received much less systematic attention. This review therefore examines the basis of viral enrichment in the plastisphere, the characteristics of plastisphere viral communities, and their major environmental risks. Current evidence suggests that plastisphere viruses may contribute to pathogen transmission, resistance dissemination, and ecological functional disturbance through a progression from surface retention to virus-host interaction within biofilms. However, most available evidence still relies on metagenomic association analyses, whereas direct validation through infection assays, host tracking, and functional experiments remains limited.