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Updated: Aug 22, 2025

Catalytic Scavenging of Plant Reactive Oxygen Species In Vivo by Anionic Cerium Oxide Nanoparticles
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Plants oxidative response to nanoplastic.

Anna Ekner-Grzyb1, Anna Duka2,3, Tomasz Grzyb4

  • 1Department of Cell Biology, Institute of Experimental Biology, Faculty of Biology, School of Natural Sciences, Adam Mickiewicz University, Poznań, Poland.

Frontiers in Plant Science
|November 7, 2022
PubMed
Summary

Nanoplastics (NP) pollution is a growing environmental concern. This review highlights how NP impact plants, focusing on their role in inducing oxidative stress.

Keywords:
antioxidant enzymeslipid peroxidationoxidative stresspolystyrene (PS)reactive oxygen species

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Area of Science:

  • Environmental Science
  • Plant Biology
  • Toxicology

Background:

  • Plastic pollution is a significant global issue, with millions of tons produced annually.
  • Degradation of larger plastics results in microplastics (MP) and nanoplastics (NP), posing environmental risks.
  • Nanoplastics are readily absorbed by organisms and are increasingly found to be toxic to plants.

Purpose of the Study:

  • To review the impact of nanoplastics on plants.
  • To emphasize the role of nanoplastics in inducing oxidative stress in plants.
  • To explore the mechanisms of nanoplastic toxicity in the plant kingdom.

Main Methods:

  • Literature review of existing studies on nanoplastic effects on plants.
  • Analysis of research focusing on plant responses to nanoplastic exposure.
  • Examination of the biochemical pathways involved in plant oxidative stress.

Main Results:

  • Nanoplastics are taken up by plants and can cause significant damage.
  • Exposure to nanoplastics triggers an increase in reactive oxygen species (ROS) in plants.
  • Excessive ROS accumulation leads to cellular damage and impaired plant function.

Conclusions:

  • Nanoplastics represent a serious threat to plant health and ecosystem stability.
  • Oxidative stress is a key mechanism through which nanoplastics exert toxicity in plants.
  • Further research is needed to fully understand and mitigate the impact of nanoplastic pollution on agriculture and natural flora.