Microplastics have rice cultivar-dependent impacts on grain yield and quality, and nitrogenous gas losses from paddy, but not on soil properties

Yi, Zhenghua; Zhang, Zhenhua; Chen, Gui; Rengel, Zed; Sun, Haijun

doi:10.1016/j.jhazmat.2022.130672

Cited by 37 publications

(6 citation statements)

References 78 publications

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“…Although microplastic had no significant influence on the cumulative N 2 O emissions, it can also be seen that PE suppressed the N 2 O emissions and that the suppressing effect in conventional rice was better than that in hybrid rice (Figure 3B). Our previous work in a fertile paddy field with excessive N input also found that microplastic could inhibit the N 2 O emission with common rice but the effect of it on hybrid rice was not significant [13]. It was confirmed that N 2 O could diffuse to the atmosphere through the rice plant aerenchyma system when the soil was flooded [44].…”

Section: Effects Of Microplastic On N 2 O Emissionmentioning

confidence: 78%

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Microplastic Has No Effect on Rice Yield and Gaseous N Emission from an Infertile Soil with High Inorganic N Inputs

Wu,

Lu,

et al. 2024

Plants

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Microplastic might affect the crop yield, nitrogen (N) use efficiency and reactive N losses from agricultural soil systems. However, evaluation of these effects in infertile soil planted with different rice cultivars is lacking. We conducted a soil column experiment to determine the influence of a typical microplastic polyethylene (PE) input into an infertile soil with 270 kg N ha−1 and planted with two rice cultivars, i.e., a common rice Nangeng 5055 (NG) and a hybrid rice Jiafengyou 6 (JFY). The results showed that JFY produced a significantly (p < 0.05) greater grain yield than NG (61.6–66.2 vs. 48.2–52.5 g pot−1) but was not influenced by PE. Overall, PE hardly changed the N use efficiency of NG and JFY. Unexpectedly, PE significantly (p < 0.05) increased the total amino acid content of NG. Compared with JFY, NG volatilized significantly (p < 0.05) more ammonia (NH3) (0.84–0.92 vs. 0.64–0.67 g N pot−1) but emitted equal nitrous oxide (N2O). PE exerted no effect on either NH3 volatilization or the N2O emission flux pattern and cumulative losses of the rice growth cycle, whether with NG or JFY. Some properties of tested soils changed after planting with different rice cultivars and incorporating with microplastic. In conclusion, the rice production, N use efficiency, NH3 volatilization and N2O emission from the N-fertilized infertile soil were pronouncedly influenced by the rice cultivar, but not the PE. However, PE influenced the grain quality of common rice and some properties of tested soils with both rice cultivars.

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Section: Effects Of Microplastic On N 2 O Emissionmentioning

confidence: 78%

“…It is widely accepted that super rice has a higher yield potential and increased N use efficiency (NUE) [11,12]. Another result also showed that the cumulative NH 3 volatilization of hybrid rice was lower than that of common rice under the same N application rate [13].…”

Section: Introductionmentioning

confidence: 99%

Microplastic Has No Effect on Rice Yield and Gaseous N Emission from an Infertile Soil with High Inorganic N Inputs

Wu,

Lu,

et al. 2024

Plants

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“…Nonetheless, intra-species responses among two rice cultivars (XS123 and Y900) were also observed in terms of rice yield under PS MP stress; such variation in rice yield was associated with the upregulation of the transcripts levels and accumulation of metabolites relating to energy expenditure pathways and metabolic accumulation pathways in XS123, thereby indicating the reprogramming of metabolites accumulation as a component of PS MP tolerance in XS123 ( Wu et al., 2022 ). Likewise, Yi et al. (2023) showed that PE MP stress did not alter rice grain yield in a common cultivar, whereas hybrid rice showed a significant reduction in the number of grains per panicle (13%) and rice grain yield (23%).…”

Section: Microplastic Effects On Plant Growthmentioning

confidence: 97%

Microplastic stress in plants: effects on plant growth and their remediations

Jia,

Liu,

Zhang

et al. 2023

Front. Plant Sci.

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Microplastic (MP) pollution is becoming a global problem due to the resilience, long-term persistence, and robustness of MPs in different ecosystems. In terrestrial ecosystems, plants are exposed to MP stress, thereby affecting overall plant growth and development. This review article has critically analyzed the effects of MP stress in plants. We found that MP stress-induced reduction in plant physical growth is accompanied by two complementary effects: (i) blockage of pores in seed coat or roots to alter water and nutrient uptake, and (ii) induction of drought due to increased soil cracking effects of MPs. Nonetheless, the reduction in physiological growth under MP stress is accompanied by four complementary effects: (i) excessive production of ROS, (ii) alteration in leaf and root ionome, (iii) impaired hormonal regulation, and (iv) decline in chlorophyll and photosynthesis. Considering that, we suggested that targeting the redox regulatory mechanisms could be beneficial in improving tolerance to MPs in plants; however, antioxidant activities are highly dependent on plant species, plant tissue, MP type, and MP dose. MP stress also indirectly reduces plant growth by altering soil productivity. However, MP-induced negative effects vary due to the presence of different surface functional groups and particle sizes. In the end, we suggested the utilization of agronomic approaches, including the application of growth regulators, biochar, and replacing plastic mulch with crop residues, crop diversification, and biological degradation, to ameliorate the effects of MP stress in plants. The efficiency of these methods is also MP-type-specific and dose-dependent.

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“…Due to the small debris that they are or have become, these MPs subsequently become a serious threat to marine fauna and flora on the one hand, and the presence of toxic substances in them has dangerous consequences on the human food chain on the other hand. Many studies reported MP presence in (i) fish [78][79][80][81][82][83][84][85] (fibres are the most common MPs from a morphological view, with 57.6-86.5% of observed particles) [78]); (ii) salt [78][79][80][81][82]84,86,87] (the presence of microplastics in salt samples has been reported, namely, 8-102 particles/kg in lake salt and 9-16 particles/kg in rock salt [78]); (iii) drinking water [78][79][80][81][82][83][84][85][86][87][88][89][90] (which ensures adequate hydration for health, maintains the dietary nutrient-to-calorie ratio, and helps bodily functions [78]), with a worldwide investigation of both bottled and tap water confirming microplastic contamination [78]; and (iv) rice [78,91] (which is the staple food for around 50% of the world population and provides more than 20% of global dietary energy in the human diet [78]), among others. In 2016, an American Chemistry Council (Trucost) study [92] estimated the damage caused by plastic waste (including macroplastics, microplastics, and nanoplastics) to oceans at USD 5 billion and to human health and ecosystems at USD 63 billion in the case of the business...…”

Section: Plastic Leakage and Marine Pollutionmentioning

confidence: 99%

An Imported Environmental Crisis: Plastic Mismanagement in Africa

Moyen Massa,

Archodoulaki

2024

Sustainability

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Plastic waste pollution is currently one of the main items on international agendas. It leads to more and more leakages and constitutes a dangerous threat to living beings and the ecosystem (toxic substances). Globally, only 9% of plastic waste is recycled, while 22% of it is mismanaged. A large part of this waste ends up legally or illegally in Africa. This article uses the available data on plastic waste to shed light on the situation in Africa. Particular attention is paid to imports of plastics and the recycling sector, as well as ways to combat improper dumping and to prevent/reduce marine pollution (microplastics). The roles and responsibilities of actors and institutions in Africa will be discussed. It is urgent for the international community, in cooperation with the local plastic/textile industries, to establish an effective and well-structured collection system for plastic and textile waste. This will help maximize the collection rate and minimize landfills through recycling. It is also necessary to encourage both the plastic and textile industries to opt for product designs that use easily recyclable materials (eco-design), and this option is crucial.

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Microplastics have rice cultivar-dependent impacts on grain yield and quality, and nitrogenous gas losses from paddy, but not on soil properties

Cited by 37 publications

References 78 publications

Microplastic Has No Effect on Rice Yield and Gaseous N Emission from an Infertile Soil with High Inorganic N Inputs

Microplastic Has No Effect on Rice Yield and Gaseous N Emission from an Infertile Soil with High Inorganic N Inputs

Microplastic stress in plants: effects on plant growth and their remediations

An Imported Environmental Crisis: Plastic Mismanagement in Africa

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