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Effects of microplastics and nanoplastics on agricultural plants
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This review examines the effects of microplastics and nanoplastics on agricultural plants, covering sources such as plastic mulch films, sewage sludge, and irrigation water, along with uptake mechanisms and observed physiological impacts. Micro- and nanoplastics reduce soil water-holding capacity, inhibit plant growth, cause oxidative stress, and impair seed germination; the smallest particles can enter roots and translocate to shoots via the vascular system. The presence of plastics and their additive chemicals in edible plant tissues raises concerns for both agricultural productivity and food safety.
Mikroplastika je globalno prisutna u poljoprivrednim tlima. Jednokratni plastični materijali za prekrivanje tla, primjena otpadnog mulja kao dodatka gnojivima i navodnjavanje su glavni izvori mikroplastike u poljoprivrednim tlima. Prisutnost mikroplastike u tlu uglavnom smanjuje kapacitet tla za vodu, a biljke koje rastu u tlu zagađenom mikroplastikom i nanoplastikom većinom imaju smanjen rast, dolazi do oksidacijskog stresa i smanjena im je klijavost sjemena. Mikroplastika vrlo malih dimenzija i nanoplastika mogu ulaziti u korijen i listove biljaka, akumulirati se u provodnim elementima i prenositi u druge dijelove biljke. Vršak korijena te mjesta ozljeda i odvajanja bočnog korijenja su kritična mjesta ulaska plastike u korijen. Dodatan izvor zagađenja predstavljaju aditivi prisutni u plastici koji se otpuštaju iz plastike u okoliš. Nadalje, mikroplastika može adsorbirati teške metale u tlu i smanjiti njihovu biološku dostupnost. Prisutnost mikroplastike i nanoplastike u jestivim dijelovima biljaka ukazuje na potrebu daljnjeg istraživanja njihovog učinka, ne samo na poljoprivredne prinose nego i na ljude i životinje koji konzumiraju biljke izložene plastici.
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Nanoplastics and Microplastics in Agricultural Systems: Effects on Plants and Implications for Human Consumption
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This review summarizes existing research on how nanoplastics and microplastics enter agricultural soil through irrigation, plastic mulch, and sewage sludge, then accumulate in crops that people eat. The particles can also carry other harmful substances like pesticides and heavy metals into plants, raising concerns about long-term health effects from chronic dietary exposure.
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This review examines how microplastics and nanoplastics enter plants through roots, disrupt growth and photosynthesis, and cause oxidative stress that reduces crop yields. Because these plastic particles can move through plant tissues and into edible parts, they represent a potential pathway for microplastics to enter the human food supply.
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This review examines how microplastics and nanoplastics accumulate in agricultural soils from plastic products and affect the soil-plant system. Researchers found that nanoplastics can be taken up by plant roots, cause oxidative stress, and negatively affect crop growth. The findings raise concerns about food safety since these particles may carry co-contaminants into the food chain.
Research Progress on the Mechanisms of Terrestrial Plant Uptake, Transport, and Growth Inhibition Responses to Micro (nano) Plastics
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This review synthesizes current research on how terrestrial plants take up micro- and nanoplastics from contaminated soil, finding that particles can enter through roots, accumulate in plant tissues, block root function, and trigger oxidative damage that stunts growth. These pathways mean that food crops grown in microplastic-contaminated soils could expose humans to plastic particles through the diet, in addition to the harm caused to agricultural productivity.
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