Uptake, translocation, and biological impacts of micro(nano)plastics in terrestrial plants: Progress and prospects

Micro(nano)plastics are emerging environmental contaminants of concern. The prevalence of micro(nano)plastics in soils has aroused increasing interest regarding their potential effects on soil biota including terrestrial plants. With the rapid increase in published studies on plant uptake and impact...

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Bibliographic Details
Published in:Environmental research Vol. 203; p. 111867
Main Authors: Wang, Wenfeng, Yuan, Wenke, Xu, Elvis Genbo, Li, Lianzhen, Zhang, Haibo, Yang, Yuyi
Format: Journal Article
Language:English
Published: Netherlands Elsevier Inc 01-01-2022
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Summary:Micro(nano)plastics are emerging environmental contaminants of concern. The prevalence of micro(nano)plastics in soils has aroused increasing interest regarding their potential effects on soil biota including terrestrial plants. With the rapid increase in published studies on plant uptake and impacts of micro(nano)plastics, a review summarizing the current research progress and highlighting future needs is warranted. A growing body of evidence indicates that many terrestrial plants can potentially take up micro(nano)plastics via roots and translocate them to aboveground portions via the vascular system, primarily driven by the transpiration stream. Exposure to micro(nano)plastics can cause a variety of effects on the biometrical, biochemical, and physiological parameters of terrestrial plants, but the specific effects vary considerably as a function of plastic properties, plant species, and experimental conditions. The presence of micro(nano)plastics can also affect the bioavailability of other associated toxicants to terrestrial plants. Based on analysis of the available literature, this review identifies current knowledge gaps and suggests prospective lines for further research. •Up-to-date knowledge on plant uptake and impacts of micro(nano)plastics is reviewed.•Transport of micro(nano)plastics in plants is driven by the transpiration stream.•Micro(nano)plastic exposure can exert substantial but varying effects on plants.•Further mechanistic reaserch on micro(nano)plastic-plant interactions is warranted.
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ISSN:0013-9351
1096-0953
DOI:10.1016/j.envres.2021.111867