Microplastics as an emerging threat to plant and soil health in agroecosystems

Zhou, Jie; Wen, Yuan; Marshall, Miles R.; Zhao, Jie; Gui, Heng; Yang, Yadong; Zeng, Zhaohai; Jones, Davey L.; Zang, Huadong

doi:10.1016/j.scitotenv.2021.147444

Cited by 206 publications

(54 citation statements)

References 94 publications

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“…Likewise, in a study, after the exposure of polystyrene NPs (20 nm) to rice, a substantial distribution of PS was found in the roots' intercellular spaces [27]. Moreover, nano-polystyrene (50 nm) was found in different compartments of the primary roots of onion after exposure for 72 h, reflecting that nano-polystyrene is capable of penetrating a variety of biological barriers and, finally, entering root cells [39].…”

Section: Mechanism Of Mp Uptake In Plantsmentioning

confidence: 90%

“…MPs are recorded to modify soil characteristics, such as bulk density, water-holding capacity, and soil structures. Depending on the type of MPs, the qualities of the soil are affected to varying degrees [27]. The other major concern has been raised by the omnipresence of MPs i.e., in the soil, MPs can combine with other pollutants (organic pollutants, heavy metals, antibiotics, etc.)…”

Section: Mechanism Of Mp Uptake In Plantsmentioning

confidence: 99%

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Microplastic Pollution: An Emerging Threat to Terrestrial Plants and Insights into Its Remediation Strategies

Kumari

Rajput

Mandzhieva

et al. 2022

Plants

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Microplastics (MPs) are ubiquitous and constitute a global hazard to the environment because of their robustness, resilience, and long-term presence in the ecosystem. For now, the majority of research has primarily focused on marine and freshwater ecosystems, with just a small amount of attention towards the terrestrial ecosystems. Although terrestrial ecosystems are recognized as the origins and routes for MPs to reach the sea, there is a paucity of knowledge about these ecological compartments, which is necessary for conducting effective ecological risk assessments. Moreover, because of their high persistence and widespread usage in agriculture, agribusiness, and allied sectors, the presence of MPs in arable soils is undoubtedly an undeniable and severe concern. Consequently, in the recent decade, the potential risk of MPs in food production, as well as their impact on plant growth and development, has received a great deal of interest. Thus, a thorough understanding of the fate and risks MPs, as well as prospective removal procedures for safe and viable agricultural operations in real-world circumstances, are urgently needed. Therefore, the current review is proposed to highlight the potential sources and interactions of MPs with agroecosystems and plants, along with their remediation strategies.

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Section: Mechanism Of Mp Uptake In Plantsmentioning

confidence: 90%

Section: Mechanism Of Mp Uptake In Plantsmentioning

confidence: 99%

Microplastic Pollution: An Emerging Threat to Terrestrial Plants and Insights into Its Remediation Strategies

Kumari

Rajput

Mandzhieva

et al. 2022

Plants

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“…These chemical additives easily leach into the soil, resulting in adverse effects on plant growth. These adverse effects increase as the adsorption capacity of MPs increases, depending on the shape, polymer structure, degradation, additives, concentration and location of MPs (Lozano and Rillig, 2020;Zhou et al, 2021b;Okeke et al, 2022).…”

Section: Direct Toxicity Of Contaminants Present In Microplastic(s)mentioning

confidence: 99%

Microplastics as an Emerging Environmental Pollutant in Agricultural Soils: Effects on Ecosystems and Human Health

Zhang

Tan

et al. 2022

Front. Environ. Sci.

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Microplastics are <5 mm in size, made up of diverse chemical components, and come from multiple sources. Due to extensive use and unreasonable disposal of plastics, microplastics have become a global environmental issue and have aroused widespread concern about their potential ecological risks. This review introduces the sources, distribution and migration of microplastics in agricultural soil ecosystems. The effects of microplastics on soil physicochemical properties and nutrient cycling are also discussed. Microplastics can alter a series of key soil biogeochemical processes by changing their characteristics, resulting in multiple effects on the activities and functions of soil microorganisms. The effects of microplastics on soil animals and plants, the combined effects of microplastics and coexisting pollutants (organic pollutants and heavy metals), and their potential risks to human health are also discussed. Finally, prevention and control strategies of microplastic pollution in agricultural soil ecosystems are put forward, and knowledge gaps and future research suggestions about microplastic pollution are given. This review improves the understanding of environmental behavior of microplastics in agricultural soil ecosystems, and provides a theoretical reference for a better assessment of the ecological and environmental risks of microplastics.

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“…Degradation of herbicides involves both biotic transformation processes‐mediated by microorganism or plants and abiotic processes such as chemical and photochemical reactions (Arias‐Estévez et al, 2008; Bento et al, 2016; Fenner et al, 2013). As microplastics can influence the soil's physicochemical properties (de Souza Machado et al, 2018; Zhou, Wen, et al, 2021), it is expected that microplastics may have multiple effects on soil microbial activity and functioning (Zang et al, 2020; Zhou, Gui, et al, 2021), thereby influencing herbicide degradation and persistence in agroecosystems (Steinmetz et al, 2016; Yang et al, 2018). Moreover, many herbicides are known to easily sorb to microplastics such as polyethylene (PE) which are widely used in agriculture (Gong et al, 2019; Hüffer et al, 2019), which could reduce their bioavailability and further influence herbicide degradation and movement.…”

Section: Introductionmentioning

confidence: 99%

Simazine degradation in agroecosystems: Will it be affected by the type and amount of microplastic pollution?

et al. 2022

Self Cite

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Plastics and herbicides represent two of the most extensive and persistent anthropogenic contaminants entering agroecosystems. The synergistic interaction of these pollutants on soil health, however, remains poorly understood. For the first time, we investigated the behavior of a common selective triazine herbicide (simazine) in soil containing 0%, 1%, 5%, 10%, and 20% (w/w) of two commonly found microplastics, namely polyethylene (PE) and polyvinyl chloride (PVC). The mineralization of 14 Clabeled simazine in soil decreased with the presence of both PE and PVC as indicated by the lower total 14 CO 2 loss. Consequently, the half-life of simazine increased in the presence of microplastics, although there was little difference between microplastic types. The ratio of fungi-to-bacteria in the soil increased by 9%-18% after 1% of microplastics addition, while enzyme activities involved in C-cycling decreased by 20%-46% in soil amended with PVC relative to the control. Further, enzyme activities were negatively correlated with the half-life of simazine when added with PVC.Therefore, we ascribe the repression in simazine degradation to changes in microbial community structure (increased fungi-to-bacteria ratio) and reduced enzyme activities. Overall, microplastics accumulation in soil decreases herbicide breakdown resulting in herbicide residuals remaining, which in turn, may increase their risk of reaching ground or surface waters.

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Microplastics as an emerging threat to plant and soil health in agroecosystems

Cited by 206 publications

References 94 publications

Microplastic Pollution: An Emerging Threat to Terrestrial Plants and Insights into Its Remediation Strategies

Microplastic Pollution: An Emerging Threat to Terrestrial Plants and Insights into Its Remediation Strategies

Microplastics as an Emerging Environmental Pollutant in Agricultural Soils: Effects on Ecosystems and Human Health

Simazine degradation in agroecosystems: Will it be affected by the type and amount of microplastic pollution?

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