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Effects of micro(nano)plastics on higher plants and the rhizosphere environment
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This review examines how micro- and nanoplastics affect higher plants and the soil environment around their roots. Researchers found that these particles can be absorbed through roots and transported to other plant tissues, causing oxidative stress and disrupting photosynthesis, metabolism, and gene expression. The study highlights that plastic pollution in soil threatens not only plant health but also the broader rhizosphere ecosystem that supports agriculture.
Microplastic/nanoplastic (MP/NP) pollution has emerged as one of the world's most serious environmental issues, with the potential for grave consequences for ecosystems and human health. This review summarizes the current literature on the impacts of MPs/NPs on higher plants to reveal their phytotoxicity. MPs/NPs can be absorbed into plant roots and then enter and translocate to other tissues by transpirational pull. The interaction between plastic particles and plants not only causes oxidative stress but also induces adverse impacts on photosynthesis, metabolism, genetic expression, and other growth parameters. Furthermore, the combination of MP/NP pollution with other contaminants makes the joint effect more complex. The phytotoxicity of MPs/NPs depends on the characteristics of the plastic particles (exposure dose, size, shape, type, age, and surface charge) and of the plants (species, tissues, and growth stage). The ecotoxicity of MPs/NPs in plant species' surrounding habitats is also discussed. MPs/NPs can alter soil characteristics such as soil structure, water holding capacity, and pH in the rhizosphere. In addition, the rhizosphere microbial community composition and diversity were observed to change in the presence of MPs/NPs. Therefore, MPs/NPs can indirectly affect plant growth by changing the soil properties and the microbial community. In addition, suggestions for future study directions were also given. In summary, this review highlights the potential effects of MPs/NPs on higher plants and the surrounding environment and calls for additional studies to be carried out on the impact of plastic particles on the ecosystem and human health.
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Microplastic/nanoplastic toxicity in plants: an imminent concern
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This review examines the growing body of research on how microplastics and nanoplastics affect terrestrial plants, from root uptake to changes in growth and gene expression. Researchers found that these particles can alter plant physiology and biochemistry at varying degrees depending on particle size and concentration. The study calls for more research on how plastic contamination in soil may ultimately affect food crop quality and human health through the food chain.
Effects of nanoplastics and compound pollutants containing nanoplastics on plants, microorganisms and rhizosphere systems: A review
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This review summarizes how nanoplastics, the tiniest plastic particles, affect plants, soil microorganisms, and the root zone where they interact. Nanoplastics can disrupt photosynthesis, alter gene activity, and reduce microbial diversity, and their harmful effects get worse when they combine with heavy metals or other pollutants. Since plant roots are a key pathway for nanoplastics to enter the food chain, these effects could ultimately impact the safety and nutritional quality of the food we eat.
Occurrence and distribution of micro/nanoplastics in soils and their phytotoxic effects: A review
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This review examined how micro- and nanoplastics distribute across different soil types and get taken up by plant roots, finding that smaller, spherical particles are absorbed more easily. Researchers found that these plastic particles accumulate in plants and trigger oxidative stress, which disrupts gene expression and metabolic pathways important for plant growth and biomass production.
Impacts of Micro/Nanoplastics on Crop Physiology and Soil Ecosystems: A Review
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This review synthesized evidence on how micro- and nanoplastics affect crop physiology and soil ecosystems, covering how plastic particles enter plants via roots, disrupt soil microbiota, and impair crop growth through oxidative stress, nutrient cycling disruption, and physical root interference. The authors found that nanoplastics pose greater plant risks than microplastics due to their ability to cross cell membranes.
Micro and nanoplastic pollution in agricultural soils: effects on rhizosphere processes and phytotoxicity
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Tiny plastic particles are building up in farm soil, even more than in the ocean, and this review of existing research shows they can disrupt the delicate root zone where plants absorb nutrients and interact with helpful microbes. This disruption can stunt plant growth and potentially affect crop quality, meaning the food we eat could be another route by which plastic pollution reaches our bodies. More research is still needed to fully understand how these plastics harm plants, but the findings signal that fixing plastic waste management in farming is an urgent priority.
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