Foliar uptake and leaf-to-root translocation of nanoplastics with different coating charge in maize plants

Sun, Haifeng; Lei, Chunli; Xu, Jianhong; Li, Ruilong

doi:10.1016/j.jhazmat.2021.125854

Cited by 198 publications

(105 citation statements)

References 51 publications

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“…Another possible pathway for plastic entry into the plant leaf is through the stomata via foliar application [180]. Sun et al [46] revealed that stomatal uptake is one possible pathway for NPs into the leaves and then moves to the vasculature. Micro-fluorescent PS NPs had a high rate in the stems and a low rate in the root of the maize plant, and fluorescence microscope imaging analysis also indicates a high occurrence of PS NPs in and around the vascular system of the stem.…”

Section: Transport Of Plastic In Root Tissuementioning

confidence: 99%

“…In maize (Zea mays), two, five, and seven days' exposure of foliar application of PS NPs (PS-NH 2 and PS-COOH), positively charged NPs PS (PS-NH 2 ) particles with a concentration of 1 mg L −1 , had inhibitory effects on maize growth. Negatively charged PS NP (PS-COOH) particles with a concentration of 1 mg L −1 reduced the fresh leaf weight of seedlings by 8% as compared to the control [46]. It can be predicted that PS charge also plays a major role and differently charged particles cause different effects on plant growth.…”

Section: Effects Of Mps and Nps On Plant Physiologymentioning

confidence: 99%

“…MPs and NPs have both positive and negative concentration-dependent effects on plant photosynthetic indicators and chlorophyll contents. For example, through foliar application PS NPs (PS-NH 2 and PS-COOH) on maize (Zea mays) at different days (two, five, and seven), PS-NH 2 had significant effects (24-27%) on plant photosynthetic activities in maize leaves as compared to PS-COOH after a seven-day exposure [46]. Similar results were reported in lettuce (Lactuca sativa) after exposure to 23-nanometer PE MPs for 28 days [184].…”

Section: Effects Of Mps and Nps On Plant Physiologymentioning

confidence: 99%

“…Despite the potential entry of these emerging contaminants into the agricultural system, information on the impacts of MPs and NPs on soil biota, especially plants, is currently very scarce. As far as we know, only three studies have documented the effects of MPs and NPs on non-vascular plants [37][38][39] and only ten studies regarding the vascular plant have just been reported in the scientific literature [40][41][42][43][44][45][46][47][48][49]. Current literature detected the impact of MPs and NPs on bio-mass production and plant growth [49][50][51][52][53].…”

Section: Introductionmentioning

confidence: 99%

“…Current literature detected the impact of MPs and NPs on bio-mass production and plant growth [49][50][51][52][53]. Detailed studies of NPs on wheat (Triticum aestivum) and broad beans (Vicia faba) have been published by Lian et al [54] and Jiang et al [48], respectively; moreover, two recent studies have investigated the effect of foliar application of NPs on the lettuce (Lactuca sativa) and maize (Zea mays) plants [46,47], which briefly discuss the toxic effects on plants.…”

Section: Introductionmentioning

confidence: 99%

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Uptake and Accumulation of Nano/Microplastics in Plants: A Critical Review

et al. 2021

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The ubiquitous presence of microplastics (MPs) and nanoplastics (NPs) in the environment is an undeniable and serious concern due to their higher persistence and extensive use in agricultural production. This review highlights the sources and fate of MPs and NPs in soil and their uptake, translocation, and physiological effects in the plant system. We provide the current snapshot of the latest reported studies with the majority of literature spanning the last five years. We draw attention to the potential risk of MPs and NPs in modern agriculture and their effects on plant growth and development. We also highlight their uptake and transport pathways in roots and leaves via different exposure methods in plants. Conclusively, agricultural practices, climate changes (wet weather and heavy rainfall), and soil organisms play a major role in transporting MPs and NPs in soil. NPs are more prone to enter plant cell walls as compared to MPs. Furthermore, transpiration pull is the dominant factor in the plant uptake and translocation of plastic particles. MPs have negligible negative effects on plant physiological and biochemical indicators. Overall, there is a dire need to establish long-term studies for a better understanding of their fate and associated risks mechanisms in realistic environment scenarios for safe agricultural functions.

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Section: Transport Of Plastic In Root Tissuementioning

confidence: 99%

Section: Effects Of Mps and Nps On Plant Physiologymentioning

confidence: 99%

Section: Effects Of Mps and Nps On Plant Physiologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Uptake and Accumulation of Nano/Microplastics in Plants: A Critical Review

et al. 2021

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Microplastics and Nanoplastics in Terrestrial Systems

Nigina,

Sajith,

Nair

2024

Toxic Effects of Micro‐ and Nanoplastics

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Evidence and Impacts of Nanoplastic Accumulation on Crop Grains

Jiang

Wang

et al. 2022

Advanced Science

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Nanoplastics are emerging pollutants of global concern. Agricultural soil is becoming a primary sink for nanoplastics generated from plastic debris. The uptake and accumulation of nanoplastics by crops contaminate the food chain and pose unexpected risks to human health. However, whether nanoplastics can enter grains and their impact on the grains of crop grown in contaminated soil is still unknown. Here, the translocation of polystyrene nanoplastics (PS-NPs) in crops, including peanut (Arachis hypogaea L.) and rice (Oryza sativa L.) is investigated. It is demonstrated PS-NPs translocation from the root and accumulation in the grains at the maturation stage. The treatment with PS-NPs (250 mg kg −1 ) increases the empty-shell numbers of rice grain by 35.45%, thereby decreasing the seed-setting rate of rice by 3.02%, and also decreases the average seed weight of peanuts by 3.45%. Moreover, PS-NPs exerted adverse effects on nutritional quality, such as decreasing the content of mineral elements, amino acids, and unsaturated fatty acids. To the knowledge, this is the first report of the presence of nanoplastics in the grains of crop plants grown in soil containing nanoplastics, and the results highlight the impact of nanoplastics on the yield and nutritional quality of crop grains.

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Foliar uptake and leaf-to-root translocation of nanoplastics with different coating charge in maize plants

Cited by 198 publications

References 51 publications

Uptake and Accumulation of Nano/Microplastics in Plants: A Critical Review

Uptake and Accumulation of Nano/Microplastics in Plants: A Critical Review

Microplastics and Nanoplastics in Terrestrial Systems

Evidence and Impacts of Nanoplastic Accumulation on Crop Grains

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