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Multi-omics reveals microplastics disrupt nitrogen assimilation in hydrophytes
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Researchers used multi-omics approaches to investigate how microplastics and nanoplastics disrupt nitrogen assimilation pathways in hydrophytes, finding that plastic particle exposure impairs the nutrient removal function these aquatic plants provide in eutrophic water bodies.
Hydrophytes mitigate water eutrophication; however, microplastics (MPs) and nanoplastics (NPs) may affect nutrient removal.
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Nanoplastics reshape nitrogen cycling in submerged macrophyte systems: A metagenomic perspective
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Scientists found that tiny plastic particles (nanoplastics) can mess with how water plants and their bacteria clean up nitrogen pollution in aquatic ecosystems—low levels of plastic slightly helped, but higher levels disrupted the microbial communities that keep waterways healthy. This matters because these aquatic systems help filter our water supplies, and this study adds to growing evidence that nanoplastic pollution—the same tiny particles increasingly found in human blood and organs—can disrupt natural processes we depend on, even before we fully understand the direct effects on our own bodies.
Negative impacts of nanoplastics on the purification function of submerged plants in constructed wetlands: Responses of oxidative stress and metabolic processes
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Researchers exposed a submerged aquatic plant commonly used in constructed wetlands to polystyrene nanoplastics and measured the impacts on growth, photosynthesis, and metabolism. They found that nanoplastics were absorbed and transported throughout the plant, reducing growth by up to 73 percent and disrupting key metabolic pathways including the citric acid cycle. The study suggests that nanoplastic accumulation in wetland plants could compromise their ability to purify water.
The effects of polypropylene microplastics on the removal of nitrogen and phosphorus from water by Acorus calamus, Iris tectorum and functional microorganisms
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Researchers investigated how polypropylene microplastics affect the ability of aquatic plants and their associated microorganisms to remove nitrogen and phosphorus from water. They found that microplastic stress reduced the nutrient absorption capacity of the plants and altered the microbial communities responsible for nitrogen and phosphorus cycling. The study suggests that microplastic pollution may undermine the effectiveness of wetland-based water purification systems.
Impact of nanoplastics uptake on modulation of plant metabolism and stress responses: a multi-omics perspective on remediation and tolerance mechanisms
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Researchers reviewed how nanoplastics accumulate in plant tissues and disrupt metabolism, finding that these particles impair nutrient uptake, trigger reactive oxygen species overproduction, and alter gene and protein expression, while multi-omics approaches are revealing the molecular stress-response networks that plants use to tolerate or remediate nanoplastic contamination.
The effects of Micro/Nano-plastics exposure on plants and their toxic mechanisms: A review from multi-omics perspectives.
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A multi-omics review of micro/nanoplastic effects on plants found that plastic exposure disrupts gene expression, protein function, and metabolic pathways across multiple plant systems, with potential consequences for crop yield and agricultural food safety.
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