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

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: Aug. 11, 2023

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

Language: Английский

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Response of peanut plant and soil N-fixing bacterial communities to conventional and biodegradable microplastics

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 459, P. 132142 - 132142

Published: July 25, 2023

Language: Английский

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Polyethylene microplastics alter soil microbial community assembly and ecosystem multifunctionality

Environment International, Journal Year: 2023, Volume and Issue: 183, P. 108360 - 108360

Published: Nov. 30, 2023

Although pervasive microplastics (MPs) pollution in terrestrial ecosystems invites increasing concern, impact of MPs on soil microbial community assembly, and ecosystem functions multifunctionality received relatively little attention. Here, we manipulated a mesocosm experiment to investigate how polyethylene (PE MPs; 0, 1%, 5%, w/w) influence plant production, quality, diversity enzymology carbon (C), nitrogen (N) phosphorus (P) cycling, maize–soil continuum. Results showed that PE exerted negligible effect biomass (dry weight). The 5% caused declines the availability water, C P, whereas enhanced pH storage. activity C-cycling enzymes (α/β-1, 4-glucosidase, β-D-cellobiohydrolase) was promoted by 1% MPs, while β-1, 4-glucosidase inhibited MPs. reduced N-cycling (protease urease), increased P-cycling enzyme (alkaline phosphatase). shifted composition, number specialist species, stability networks resistance. altered with concentration decreasing dispersal limitation proportion (from 13.66 9.96%). Overall, improved concentration, α/β-1, urease, protease, ammonium-N content were most important predictors multifunctionality. These results underscore can alter assembly multifunctionality, thus development implement scalable solutions controlling become increasingly imperative sustainable agricultural production.

Language: Английский

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Research advances on production and application of algal biochar in environmental remediation

Environmental Pollution, Journal Year: 2024, Volume and Issue: 348, P. 123860 - 123860

Published: March 25, 2024

Language: Английский

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The impacts of microplastics on the cycling of carbon and nitrogen in terrestrial soil ecosystems: Progress and prospects

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 915, P. 169977 - 169977

Published: Jan. 10, 2024

Language: Английский

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Biochar relieves the toxic effects of microplastics on the root-rhizosphere soil system by altering root expression profiles and microbial diversity and functions

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 271, P. 115935 - 115935

Published: Jan. 10, 2024

The accumulation of microplastics in agricultural soil brings unexpected adverse effects on crop growth and quality, which is threatening the sustainability agriculture. Biochar an emerging amendment material interest as it can remediate pollutants. However, mechanisms underlying biochar alleviated toxic crops were largely unknown. Using a common economic crop, peanut targeted species, present study evaluated plant physiologica molecular response rhizosphere microbiome when facing microplastic contamination amendment. Transcriptome analyses conducted root treated with CK (no no addition), MP (1.5% polystyrene addition) MB microplastic+2% shell addition). results indicated that had inhibitory development bacterial diversity function. application could significantly promote expressions key genes associated antioxidant activities, lignin synthesis, nitrogen transport energy metabolism to alleviate reactive oxygen species stress, structure damage, nutrient limitation, inhibition induced by root. In addition, showed restore richness microbial communities inhibited availability regulating abundance cycling-related organic matter decomposition-related communities. Consequently, enhance promoting oxidative stress resistance, benefit microecological environment for development, thereby improved plant-soil system health microplastic-contaminated agroecosystem.

Language: Английский

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Microplastic pollution promotes soil respiration: A global‐scale meta‐analysis

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(7)

Published: July 1, 2024

Abstract Microplastic (MP) pollution likely affects global soil carbon (C) dynamics, yet it remains uncertain how and to what extent MP influences respiration. Here, we report on a meta‐analysis determine the effects of microbiome CO 2 emission. We found that significantly increased contents organic C (SOC) (21%) dissolved (DOC) (12%), activity fluorescein diacetate hydrolase (FDAse) (10%), microbial biomass (17%), but led decrease in diversity (3%). In particular, increases components further promote emission (25%) from soil, with much higher effect MPs these emissions than biomass. The could be attributed opposite vs. diversity, as accumulation recruited some functionally important bacteria provided additional substrates for specific heterotrophic microorganisms, while inhibiting growth autotrophic taxa (e.g., Chloroflexi , Cyanobacteria ). This study reveals can increase by causing shifts microbiome. These results underscore potential importance plastic terrestrial fluxes, thus climate feedbacks.

Language: Английский

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Micro/nanoplastics: Critical review of their impacts on plants, interactions with other contaminants (antibiotics, heavy metals, and polycyclic aromatic hydrocarbons), and management strategies

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 912, P. 169420 - 169420

Published: Dec. 19, 2023

Language: Английский

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Adverse effects of microplastics and nanoplastics on the reproductive system: A comprehensive review of fertility and potential harmful interactions

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 903, P. 166258 - 166258

Published: Aug. 12, 2023

In recent years, microplastics (MPs) and nanoplastics (NPs) have caused ubiquitous environmental pollution raised widespread concern about their potential toxicity to human health, especially in the reproductive system. Moreover, infertility affects >15 % of couples worldwide, birth rate is decreasing. Environmental factors are some most important causes infertility. However, little known effects MPs NPs on testes ovaries. These particles can enter body primarily via ingestion, inhalation, skin contact, target system a size-dependent manner disturb germ cell other somatic development. Our study systematically reviewed adverse plastic function offers valuable insights into different stages cells mechanisms. synergistic these carried contaminants was summarized. Given limited research scale, shift toward innovative technologies adoption multiple omics recommended for advancing related studies. Further needed explore based size, polymer type, shape, toxins, establish effective protective measures, develop precision medicine targeted damage.

Language: Английский

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Microplastics affect ecosystem multifunctionality: Increasing evidence from soil enzyme activities

Land Degradation and Development, Journal Year: 2024, Volume and Issue: 35(15), P. 4379 - 4405

Published: July 22, 2024

Abstract Microplastics (MPs) as emerging contaminants have a global occurrence, including both terrestrial and marine ecosystems. Soil enzymes contribute to maintaining ecosystem multifunctionality, for example, nutrient cycling, organic material decomposition, carbon climate regulation. Our present review highlights the impacts of MPs on soil enzyme activities, influencing factors, underlying mechanisms. Increasing findings confirm that can change activities range involved in biogeochemical cycling C N. However, current results are highly controversial. The effects vary from significant nonsignificant dependent polymer type, biodegradability, dosage, size, shape, aging degree MPs, exposure conditions. Compared traditional biodegradable generally show more pronounced effects. via different pathways. On one hand, directly structure, leading alterations activity. other create unique habitats, provide sources specific functional microbes producing enzymes, release plastic additives pollutants disturbing production these enzymes. Furthermore, alter physicochemical biological properties, availability substrates, plants fauna, regulating their functions. In conclusion, regulate pose profound impact multifunctionality.

Language: Английский

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