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

doi:10.16178/j.issn.0528-9017.20240677

Abstract

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

CLC Number:

S631.1

WANG Xiaoming, NIAN Zhijuan, ZHU Jianwen, PEI Huifang, MA Guotai, ZHANG Fenqin, ZENG Xiucun. Effect of polyethylene microplastics on the growth and contents of antioxidant substances of cherry radish[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(11): 2622-2626.

Figures/Tables 5

References 21

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PE-MPs 粒径/μm	PE-MPs含量/ (g·kg^-1)	发芽率/ %	发芽势	发芽指数	活力指数
6.5	0	100±0 a	55.00±5.00 a	9.48±0.27 a	130.09±8.96 a
	0.5	100±0 a	53.33±5.77 a	9.44±0.32 a	129.33±10.36 a
	1.0	100±0 a	51.67±2.89 a	9.33±0.32 a	126.50±10.32 a
	5.0	100±0 a	43.33±2.89 b	8.69±0.23 b	101.74±9.91 b
	10.0	100±0 a	33.33±2.89 c	6.07±0.48 c	82.11±11.40 c
48	0	100±0 a	55.00±5.00 a	9.48±0.27 a	130.09±8.96 a
	0.5	100±0 a	48.33±2.89 a	9.52±0.27 a	127.45±10.70 a
	1.0	100±0 a	51.67±2.89 a	9.19±0.13 a	125.50±10.08 a
	5.0	100±0 a	46.67±2.89 ab	8.06±0.41 b	88.44±7.94 b
	10.0	100±0 a	43.33±2.89 b	7.68±0.35 b	86.92±6.26 b
500	0	100±0 a	55.00±5.00 a	9.48±0.27 a	130.09±8.96 a
	0.5	100±0 a	55.00±5.00 a	9.40±0.14 a	127.22±11.29 a
	1.0	100±0 a	53.33±2.89 a	9.46±0.40 a	127.73±8.10 a
	5.0	100±0 a	46.00±2.00 b	8.55±0.31 b	93.08±6.16 b
	10.0	100±0 a	45.00±0.00 b	8.07±0.33 b	90.56±9.01 b

PE-MPs 粒径/μm	PE-MPs含量/ (g·kg^-1)	发芽率/ %	发芽势	发芽指数	活力指数
6.5	0	100±0 a	55.00±5.00 a	9.48±0.27 a	130.09±8.96 a
	0.5	100±0 a	53.33±5.77 a	9.44±0.32 a	129.33±10.36 a
	1.0	100±0 a	51.67±2.89 a	9.33±0.32 a	126.50±10.32 a
	5.0	100±0 a	43.33±2.89 b	8.69±0.23 b	101.74±9.91 b
	10.0	100±0 a	33.33±2.89 c	6.07±0.48 c	82.11±11.40 c
48	0	100±0 a	55.00±5.00 a	9.48±0.27 a	130.09±8.96 a
	0.5	100±0 a	48.33±2.89 a	9.52±0.27 a	127.45±10.70 a
	1.0	100±0 a	51.67±2.89 a	9.19±0.13 a	125.50±10.08 a
	5.0	100±0 a	46.67±2.89 ab	8.06±0.41 b	88.44±7.94 b
	10.0	100±0 a	43.33±2.89 b	7.68±0.35 b	86.92±6.26 b
500	0	100±0 a	55.00±5.00 a	9.48±0.27 a	130.09±8.96 a
	0.5	100±0 a	55.00±5.00 a	9.40±0.14 a	127.22±11.29 a
	1.0	100±0 a	53.33±2.89 a	9.46±0.40 a	127.73±8.10 a
	5.0	100±0 a	46.00±2.00 b	8.55±0.31 b	93.08±6.16 b
	10.0	100±0 a	45.00±0.00 b	8.07±0.33 b	90.56±9.01 b

PE-MPs粒径/μm	总多酚含量	总黄酮含量	抗坏血酸含量	谷胱甘肽含量
CK	1 173.72±77.35 a	327.93±15.98 a	16.64±1.20 a	175.44±13.24 a
6.5	796.83±67.16 c	260.87±33.74 b	11.00±0.89 c	113.76±10.75 d
48	866.71±52.89 c	281.93±15.29 b	11.39±0.97 c	136.13±9.96 c
500	1 093.59±101.26 b	289.67±16.65 b	12.23±1.12 b	150.23±10.21 b

PE-MPs粒径/μm	总多酚含量	总黄酮含量	抗坏血酸含量	谷胱甘肽含量
CK	1 173.72±77.35 a	327.93±15.98 a	16.64±1.20 a	175.44±13.24 a
6.5	796.83±67.16 c	260.87±33.74 b	11.00±0.89 c	113.76±10.75 d
48	866.71±52.89 c	281.93±15.29 b	11.39±0.97 c	136.13±9.96 c
500	1 093.59±101.26 b	289.67±16.65 b	12.23±1.12 b	150.23±10.21 b

PE-MPs粒径/μm	${O}_{2}^{-}$含量	H₂O₂含量
CK	1.89±0.17 c	120.29±9.17 c
6.5	2.33±0.18 a	155.00±13.34 a
48	2.18±0.21 b	140.43±12.94 b
500	2.15±0.17 b	138.29±11.76 b