Journal of Zhejiang Agricultural Sciences ›› 2025, Vol. 66 ›› Issue (11): 2622-2626.DOI: 10.16178/j.issn.0528-9017.20240677

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Effect of polyethylene microplastics on the growth and contents of antioxidant substances of cherry radish

WANG Xiaoming(), NIAN Zhijuan, ZHU Jianwen, PEI Huifang, MA Guotai, ZHANG Fenqin, ZENG Xiucun()   

  1. Key Laboratory of Hexi Corridor Resources Utilization of Gansu, Resistance Research Center for Rapeseed-Maize in Hexi Corridor, Hexi University, Zhangye 734000, Gansu
  • Received:2024-08-22 Online:2025-11-11 Published:2025-12-01

Abstract:

To investigate the effects of microplastics on the growth and edible quality of cherry radish, this article used root vegetables cherry radishes as test materials to study the effects of different contents and particle sizes of polyethylene microplastics (PE-MPs) on the growth and development of seedlings, root growth, the contents of four antioxidant substances in the edible parts of roots, and the contents of two reactive oxygen. The results showed that the PE-MPs with the particle sizes of 6.5, 48 and 500 μm had no significant effect on the seed germination of cherry radish at low contents (0.5 and 1.0 g·kg-1) (p>0.05), but 0.5 g·kg-1 PE-MPs with the particle sizes of 48 and 500 μm significantly (p<0.05) decreased root vitality. 0.5 g·kg-1 PE-MPs with the particle sizes of 6.5, 48 and 500 μm significantly reduced the contents of the total polyphenol, total flavonoid, ascorbic acid, and glutathione in the edible parts of roots, on the contrary, it significantly increased ${O}_{2}^{-}$ and H2O2 contents. These results indicate that PE-MPs affect the yield and quality of cherry radish, reducing its antioxidant activity.

Key words: polyethylene microplastics, cherry radish, root, antioxidant substance, effect

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