Exploring the interaction between polystyrene nanoplastics and Allium cepa during germination: Internalization in root cells, induction of toxicity and oxidative stress

Giorgetti, Lucia; Spanò, Carmelina; Muccifora, Simonetta; Bottega, Stefania; Barbieri, Francesco; Bellani, Lorenza; Castiglione, Monica Ruffini

doi:10.1016/j.plaphy.2020.02.014

Cited by 285 publications

(122 citation statements)

References 45 publications

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“…Microscopic observations of particle accumulation in seed and root surfaces suggested that the inhibition of water and nutrient uptake was one of the main mechanism altering germination and plant development. [87,90,82,126] However, this hypothesis was not verified by nutrient or water content measurements. On the opposite, Lian et al found an increase of seed vigor and seedling length in wheat seeds exposed to PS nanoparticles that was accompanied by an increase in water uptake.…”

Section: Toxicity Mechanismsmentioning

confidence: 92%

“…[83] And, Taylor et al found the accumulation of micro and nano spheres of PS in the root cap of A. thaliana and Triticum aestivum, but no evidence of uptake or negative effects. [85] Dose-dependent decreases in mitotic index have been reported in A. cepa [82,89] and in V. faba [90] seedlings exposed to PS nanoparticles. In the case of A. cepa, the presence of nanoplastics inside cells interfering with some organelles was reported for the first time.…”

Section: Toxicity Mechanismsmentioning

confidence: 97%

“…In terrestrial plants, evidence of cell internalization in A. cepa exposed to nanoPS has been obtained from TEM images. [82]…”

Section: Electron Based Microscopymentioning

confidence: 99%

Section: Toxicity Mechanismsmentioning

confidence: 99%

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A Critical Review on the Impacts of Nanoplastics and Microplastics on Aquatic and Terrestrial Photosynthetic Organisms

Larue

Sarret

Castillo‐Michel

et al. 2021

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132

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Microplastic and nanoplastic contamination is widespread and affects aquatic and terrestrial ecosystems. Photosynthetic organisms are present in both media, they are primary producers, sink for CO2, and they represent a major point of entry in the food chain. Here, the current knowledge on the fate and impacts of microplastics and nanoplastics in interaction with these organisms has been reviewed. As a general trend, plastic characteristics (smaller size and positive charge) play a crucial role in their toxicity towards photosynthetic organisms. Plastic leachates (containing additives) represent also a major source of toxicity, and some harmful compounds such as phthalate esters have been shown to accumulate in plants and generate a risk for the consumers. Adsorption of plastic particles has been evidenced for each type of photosynthetic organism, and uptake and translocation in terrestrial plants was evidenced for nanoplastics, leading to concerns for trophic chain contamination. The available techniques for the detection of microplastics and nanoplastics and their secondary products in biological samples and media are also listed. Finally, the current gaps of knowledge, specific challenges, and future research directions were also discussed.

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Section: Toxicity Mechanismsmentioning

confidence: 92%

Section: Toxicity Mechanismsmentioning

confidence: 97%

“…In terrestrial plants, evidence of cell internalization in A. cepa exposed to nanoPS has been obtained from TEM images. [82]…”

Section: Electron Based Microscopymentioning

confidence: 99%

Section: Toxicity Mechanismsmentioning

confidence: 99%

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A Critical Review on the Impacts of Nanoplastics and Microplastics on Aquatic and Terrestrial Photosynthetic Organisms

Larue

Sarret

Castillo‐Michel

et al. 2021

Small

132

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“…In cucumber, the levels of photosynthetic pigments, and concentrations of soluble sugar and proline in leaf are significantly reduced by exposure to 100 nm polystyrene nanoplastics, which may be due to the effects of benzene ring resulting from the degradation of polystyrene nanoplastics 15 . In Allium cepa , cytological analysis of the root meristems revealed cytotoxicity and genotoxicity were caused by a low dose of nanoplastics exposure (0.1 g L ‐1 ), and the nanoplastics induced damage to roots could be attributed to mechanical surface contact in root external layers 16 . The toxic effects of nanoplastics to plants could be modulated by their interaction with other factors in the soil and environment, such as hazardous materials 17,18 .…”

Section: Introductionmentioning

confidence: 99%

Melatonin reduces nanoplastic uptake, translocation, and toxicity in wheat

Guo

Wang

et al. 2021

Journal of Pineal Research

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With increasing plastic production and consumption, large amounts of polystyrene nanoplastics are accumulated in soil due to improper disposal causing pollution and deleterious effects to environment. However, little information is available about how to alleviate the adverse impacts of nanoplastics on crops. In this study, the involvement of melatonin in modulating nanoplastic uptake, translocation, and toxicity in wheat plant was investigated. The results demonstrated that exogenous melatonin application reduced the nanoplastic uptake by roots and their translocation to shoots via regulating the expression of genes associated with aquaporin, including the upregulation of the TIP2‐9, PIP2, PIP3, and PIP1.2 in leaves and TIP2‐9, PIP1‐5, PIP2, and PIP1.2 in roots. Melatonin activated the ROS scavenging system to maintain a better redox homeostasis and ameliorated the negative effects of nanoplastics on carbohydrate metabolism, hence ameliorated the plant growth and enhanced the tolerance to nanoplastics toxicity. This process was closely related to the exogenous melatonin application induced melatonin accumulation in leave. These results suggest that melatonin could alleviate the adverse effects of nanoplastics on wheat, and exogenous melatonin application might be used as a promising management strategy to sustain crop production in the nanoplastic‐polluted soils.

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Toxicological Concerns of Nanomaterials in Agriculture

Rienzie

Adassooriya

2021

Nanotechnology in Plant Growth Promotion and Protection

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Exploring the interaction between polystyrene nanoplastics and Allium cepa during germination: Internalization in root cells, induction of toxicity and oxidative stress

Cited by 285 publications

References 45 publications

A Critical Review on the Impacts of Nanoplastics and Microplastics on Aquatic and Terrestrial Photosynthetic Organisms

A Critical Review on the Impacts of Nanoplastics and Microplastics on Aquatic and Terrestrial Photosynthetic Organisms

Melatonin reduces nanoplastic uptake, translocation, and toxicity in wheat

Toxicological Concerns of Nanomaterials in Agriculture

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