Microplastic risk assessment and toxicity in plants: a review

Qiu, Guankai; Wang, Quanying; Wang, Tianye; Zhang, Shaoqing; Song, Ningning; Yang, Xiutao; Zeng, Ying; Sun, Zhenghao; Wu, Guangfeng; Yu, Hongwen

doi:10.1007/s10311-023-01665-4

Cited by 15 publications

(3 citation statements)

References 93 publications

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“…Studies on the impact of MPs on plant growth and development have yielded conflicting results. These effects can range from suppression to promotion. ,, In our study, the effects of PBS MPs and PE MPs on the biomass of soybean plants varied, particularly in red soil, with PBS MPs showing more negative effects than PE MPs. This is consistent with earlier studies showing that BMPs are more harmful to the growth of wheat, pakchoi, and Arabidopsis than PE. − These contradictory findings are the result of several causes.…”

Section: Discussionmentioning

confidence: 63%

Biodegradable Microplastic-Driven Change in Soil pH Affects Soybean Rhizosphere Microbial N Transformation Processes

Wang,

Liu,

Zeb

et al. 2024

J. Agric. Food Chem.

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The potential impacts of biodegradable and nonbiodegradable microplastics (MPs) on rhizosphere microbial nitrogen (N) transformation processes remain ambiguous. Here, we systematically investigated how biodegradable (polybutylene succinate, PBS) MPs and nonbiodegradable (polyethylene, PE) MPs affect microbial N processes by determining rhizosphere soil indicators of typical Glycine max (soybean)-soil (i.e., red and brown soils) systems. Our results show that MPs altered soil pH and dissolved organic carbon in MP/soil type-dependent manners. Notably, soybean growth displayed greater sensitivity to 1% (w/w) PBS MP exposure in red soil than that in brown soil since 1% PBS acidified the red soil and impeded nutrient uptake by plants. In the rhizosphere, 1% PBS negatively impacted microbial community composition and diversity, weakened microbial N processes (mainly denitrification and ammonification), and disrupted rhizosphere metabolism. Overall, it is suggested that biodegradable MPs, compared to nonbiodegradable MPs, can more significantly influence the ecological function of the plant−soil system.

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Section: Discussionmentioning

confidence: 63%

Biodegradable Microplastic-Driven Change in Soil pH Affects Soybean Rhizosphere Microbial N Transformation Processes

Wang,

Liu,

Zeb

et al. 2024

J. Agric. Food Chem.

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“…6 However, current empirical evidence regarding the response of plants to MPs is still insufficient for further ecological risk assessments of MPs. 7 The impacts of MPs on terrestrial plants as a consequence need to be urgently explored, especially on edible plants.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, terrestrial emissions can be regarded as the main source of MPs, including the extensive application of sewage sludge as a fertilizer or plastic mulching to agricultural soil, which results in not only greater accumulation of MPs in farmland but also disturbance of soil biophysical properties. , In recent years, a handful of studies have reported that MPs potentially affect the plant performance . However, current empirical evidence regarding the response of plants to MPs is still insufficient for further ecological risk assessments of MPs . The impacts of MPs on terrestrial plants as a consequence need to be urgently explored, especially on edible plants.…”

Section: Introductionmentioning

confidence: 99%

Effects of Microplastics on Endophytes in Different Niches of Chinese Flowering Cabbage (Brassica campestris)

Chai,

Yin,

Xiao

et al. 2024

J. Agric. Food Chem.

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Microplastics (MPs) are present in soil as emerging contaminants and pose a threat to soil as well as plants. Here, the effects of MPs on Chinese flowering cabbage from a microbiology perspective were explored. MP size and concentration significantly affected endophytic communities of plant root and petiole (p < 0.05). Under MP treatments, the root, petiole, and leaf exhibited a substantial abundance of pathogenic biomarkers, such as Pseudomonas, Burkholderia, Ralstonia, and Escherichia, resulting in the slow growth and morbidity of the plant. Difference analysis of metabolic pathways revealed that MPs significantly upregulated the pathogenic metabolic pathways (p < 0.05), and the presence of Vibrio infectious and pathogenic metabolic pathways was detected in all three niches of the plant. Moreover, MPs significantly inhibited the contents of carotenoids, iron, vitamin C, and calcium in edible niches of the plant (p < 0.05), and most of the high-abundant biomarkers were negatively correlated with their nutritional qualities.

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Decreased Sulfamethoxazole Uptake in Lettuce (Lactuca sativa L.) due to Transpiration Inhibition by Polypropylene Microplastics

Li,

Liu,

Cai

et al. 2024

Ecotoxicology and Environmental Safety

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Microplastic risk assessment and toxicity in plants: a review

Cited by 15 publications

References 93 publications

Biodegradable Microplastic-Driven Change in Soil pH Affects Soybean Rhizosphere Microbial N Transformation Processes

Biodegradable Microplastic-Driven Change in Soil pH Affects Soybean Rhizosphere Microbial N Transformation Processes

Effects of Microplastics on Endophytes in Different Niches of Chinese Flowering Cabbage (Brassica campestris)

Decreased Sulfamethoxazole Uptake in Lettuce (Lactuca sativa L.) due to Transpiration Inhibition by Polypropylene Microplastics

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