Particle size-dependent biomolecular footprints of interactive microplastics in maize

Pehlivan, Necla; Gedik, Kenan

doi:10.1016/j.envpol.2021.116772

Cited by 79 publications

(10 citation statements)

References 63 publications

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“…Qi et al found that 1% (w/w) low density PE (LDPE)-MPs (∼50 μm) significantly decreased the root biomass of wheat plants, but only a slight non-significant decrease in shoot biomass, consistent with our findings. Significant negative effects were observed by Pehlivan et al; root and shoot length of maize were significantly decreased in the 150–212 and 75–150 μm MP mixture (PET, PP, PE, PVC, and PS) treatment groups. Neutral effects were found by Meng et al and Wang et al, in which they found the presence of PE-MPs in soil had no significant impact on the growth of common bean and maize, respectively.…”

Section: Resultsmentioning

confidence: 87%

Comparison of Growth and Quality between Hydroponically Grown and Soil-Grown Lettuce under the Stress of Microplastics

Lei

Engeseth

2022

ACS EST Water

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There is growing concern of microplastics (MPs) contamination in farmlands and freshwater systems. This research investigated the impact of polyethylene (PE)-MPs (22–48 μm) on Romaine lettuce under a 30-day exposure at 50, 250, and 1000 (mg/kg or mg/L) in soil or hydroponic conditions. Growth parameters (plant height, root length, and fresh weight of shoots and roots) of hydroponic lettuce were lower with two lower doses of PE-MP treatments, but not affected by the highest dose. The growth parameters of soil-grown lettuce decreased by all PE-MP treatments. Moisture content was decreased by PE-MPs in hydroponic lettuce but increased in soil-grown lettuce. Ash followed an opposite trend to moisture. Ascorbic acid was lower in both groups of lettuce. Chlorophylls, total phenolics, and antioxidant capacity were increased in hydroponic lettuce but decreased in soil-grown lettuce. Lettuce firmness increased in both groups, which positively correlated to the increased lignin in plant cell walls. All PE-MP-treated lettuce experienced greater weight loss and accelerated color change during the 30-day storage at 4 °C, suggesting a shortened shelf life. Findings indicate that plant growth and quality were affected by the MP dose, growth systems, and their interactions, which should raise awareness of the risks of MPs in different agroecosystems.

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Section: Resultsmentioning

confidence: 87%

Comparison of Growth and Quality between Hydroponically Grown and Soil-Grown Lettuce under the Stress of Microplastics

Lei

Engeseth

2022

ACS EST Water

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“…Additionally, polystyrene treatment can raise the level of reactive oxygen and lower anti-oxidase activity, leading to extremely substantial oxidative stress. Pehlivan and Gedik (2021) reported that to develop a predictive, allencompassing model, the morpho-physiological and molecular responses in maize seedlings exposed to the most common MP types (PP, PET, PVC, PS, and PE) with varying particle sizes (75-150 mm and 150-212 m) and combinations (PP+PET+PVC+PS + PE and mix) were examined. The accumulation of endogenous H2O2 along with the biochemical imbalance at lower sized (75-150 mm) MPs in particular at the MP mix, which included cell membrane instability, fewer photosynthetic pigments, and a conjectural restriction on the photosynthetic capacity, demonstrated that the larger the particle size, the better the ability of cells to repair damage under MP-caused xenobiotic stress.…”

Section: ________________________________________________mentioning

confidence: 99%

The Effect of Microplastic Pollution on Soil, Plants and Soil Microbes and Its Remediation

Elbasiouny

Mustafa²,

Zedan³

et al. 2022

Egypt.J. Soil Sci.

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Microplastic pollution is one of the major environmental problems that have recently increased. Some researchers consider it the second largest global environmental problem, and some describe it as we live in a world full of plastic. Microplastic pollution has many negative effects on terrestrial and marine organisms and various environmental elements, and the problem gets worse when microplastics and its degradation derivativesare transferred to food chains and then to humans, which negatively affects their health. This problem has been widely addressed in aquatic and marine ecosystems, but there is still a gap of knowledge in studying the impact of microplastic on soil, soil microbes(largely responsible for its fertility), and plants). Therefore, this review aims to highlight this. Also, it aims to focus on the treatment methods and the potential effect of biochar (because of its unique properties) on the treatment of microplastic pollution. Hence, this review could contribute to reducing the scientific gap on the effects of microplastics on terrestrial ecosystems.

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“…46,47) The exposure of plants to MPs can also have effects on the chlorophyll contents of plants. 48,49) For example, the chlorophyll contents and soluble sugar of cucumber were significantly decreased after exposure to 100 nm PS 49) , and the leaf chlorophyll content of maize was decreased after exposure to HDPE. 50)…”

Section: Effect Of Types Of Mps On Plant Growthmentioning

confidence: 99%

Effect of Microplastics on the Germination and Growth of Terrestrial Plants

Hasan¹,

Jho²

2022

J Korean Soc Environ Eng

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Objectives : The human beings of our globe are heavily reliant on the use of plastic products on a daily basis. Microplastics (MPs) are tiny particles that are formed as a result of plastic degradation. MPs can be found in terrestrial environment, but previous studies focused on the effects of MPs on marine environment and there are less studies on the effects of MPs on terrestrial environment. In particular, there is still a relatively limited number of studies on the effects of MPs on terrestrial plants. Therefore, this review paper aims to examine previous studies on the effect of MPs on the germination and growth of terrestrial plants.Methods : This review summarized the previous findings on the effect of MPs on the germination and growth of terrestrial plants in order to identify the research gaps and trends on the effects of MPs on terrestrial plants.Results and Discussion : Previous studies on the effect of MPs on the germination and growth of terrestrial plants were reviewed and the observations were summarized to find the gaps in this field of research. Previous studies showed that MPs can change soil properties and these changes can be different depending on the shape and size of MPs. MPs can also release chemicals such as phthalates and heavy metals that might have toxic effects on terrestrial plants. Different forms, types, and sizes of MPs were used in previous studies to study the effects on seed germination and growth of different plants. Most studies reported that MPs have negative effects on seed germination and plant growth (e.g., biomass, chlorophyll contents). Smaller MPs tend to have more significant effects than larger MPs. The changes in the soil properties due to MPs can change microbial community structures and this, in turn, may affect the soil-plant interaction.Conclusion : This study summarizes what have been reported in the previous studies on the effect of MPs on seed germination and growth of terrestrial plants. MPs are likely to affect seed germination and plant growth negatively, and this will eventually lead to reduction in food production and food quality. Owing to the various types, forms, and sizes of MPs that could be present in the terrestrial environment as well as the chemicals that could be released from MPs, there is much to explore to better understand the effect of MPs on terrestrial plants and the underlying mechanisms of such effects.

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Particle size-dependent biomolecular footprints of interactive microplastics in maize

Cited by 79 publications

References 63 publications

Comparison of Growth and Quality between Hydroponically Grown and Soil-Grown Lettuce under the Stress of Microplastics

Comparison of Growth and Quality between Hydroponically Grown and Soil-Grown Lettuce under the Stress of Microplastics

The Effect of Microplastic Pollution on Soil, Plants and Soil Microbes and Its Remediation

Effect of Microplastics on the Germination and Growth of Terrestrial Plants

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