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May 4, 2026AgricultureOpen Access

How Microplastics Influence the Microbial Communities of Periphytic Biofilm Between the Paddy Soil and Water Interface: A Microcosm Study

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Authors

YDYufei DongNanjing Forestry UniversityCHCongying HanNanjing Forestry UniversitySPShuai PanNanjing Forestry University

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Implication

Microcosm study shows that microplastics alter microbial community characteristics in periphytic biofilms, suggesting bioindicators for pollution.

Key Points

  • To investigate the impact of different types of microplastics on the community composition of periphytic biofilms in paddy ecosystems.
  • Microcosm study examining three types of microplastics (PAN, PE, PET) with high-throughput sequencing.
  • Measurement of biomass, chlorophyll-a content, and community structure of periphytic biofilms.
  • Co-occurrence network analysis to assess connectivity and modularity of microbial communities.
  • All microplastics significantly increased biomass (maximum increase of 331.9% with PAN) and chlorophyll-a content (maximum increase of 128.6%).
  • PAN and PET increased the relative abundance of Cyanobacteria and Proteobacteria, while PE unique increased Bacteroidota and Blastocladiomycota.
  • PET decreased functional potential for natural polymer degradation, while PE increased potential for plastic degradation and nitrate reduction.

Cite This Study

Dong et al. (2026) studied this question.

synapsesocial.com/papers/69f837233ed186a73998135ehttps://doi.org/10.3390/agriculture16090968
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