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61,005 resultsShowing papers similar to First Evidence of Microplastic in the Roots of Eichhornia Crassipes (mart.) Solms (1883) at the Delmiro Gouveia Paulo Afonso Reservoir – Ba - Submedio São Francisco
ClearProposal of Invader Pontederia crassipes as a Savior of Micro and Macro Size Plastic Pollution
This study was the first to evaluate microplastic and macroplastic capture potential of the invasive water hyacinth, finding 3,691 particles in the roots of 12 specimens, with fragments dominating. The results suggest this widely distributed invasive plant may passively accumulate plastic particles from aquatic environments.
Tracing and trapping micro- and nanoplastics: Untapped mitigation potential of aquatic plants?
Researchers used fluorescently labeled polystyrene particles to trace microplastic and nanoplastic uptake in three aquatic plant species, finding that nanoplastics concentrated primarily in roots via apoplastic transport with bioconcentration factors up to 306, suggesting floating plants like water hyacinth may be useful for removing plastic from contaminated water.
Plastic plants: Water hyacinths as driver of plastic transport in tropical rivers
Researchers studied how water hyacinth plants act as drivers of plastic transport in tropical freshwater rivers, finding that the floating plants aggregate and carry large quantities of plastic debris. Understanding this mechanism is important for predicting and intercepting plastic before it reaches the ocean as microplastics.
Phytoremediation of microplastics by water hyacinth
Researchers found that water hyacinth, a fast-growing floating plant, can remove 55-69% of microplastics from contaminated water within 48 hours through root adsorption. The plant's massive root surface area traps plastic particles, while a special structure in the stem prevents the plastics from reaching the leaves. This study offers a promising natural, low-cost approach to cleaning microplastics from waterways.
A Field Guide for Monitoring Riverine Macroplastic Entrapment in Water Hyacinths
Researchers developed a field guide for monitoring macroplastic entrapment in water hyacinths in rivers, providing standardized methods to quantify how floating aquatic vegetation aggregates and transports plastic debris — an understudied pathway in river plastic budgets.
Water hyacinths retain river plastics
Researchers investigated how water hyacinths, an invasive aquatic plant common in tropical rivers, interact with floating plastic debris. They found that dense water hyacinth patches efficiently trap surface plastics, potentially influencing whether plastic waste reaches the ocean. The study suggests that while water hyacinths are typically considered a nuisance species, they may play an unintended role in retaining river plastics.
A field guide for monitoring riverine macroplastic entrapment in water hyacinths
Researchers developed a field guide for monitoring how floating water hyacinths trap and transport plastic debris in rivers, providing a practical tool for studying plastic transport pathways. Water hyacinths may act as important accumulators of plastic litter that would otherwise reach the ocean as microplastics.
The retention of plastic particles by macrophytes in the Amazon River, Brazil
Researchers investigated whether aquatic macrophytes in the Amazon River system retain floating plastic particles, measuring the accumulation of plastic debris in plant biomass along riverbanks. The study suggests that riparian macrophytes may act as a natural but limited sink for plastic litter.
Insight into the absorption and migration of polystyrene nanoplastics in Eichhornia crassipes and related photosynthetic responses
Researchers studied how water hyacinth plants absorb and transport polystyrene nanoplastics of different sizes. Smaller nanoplastics (20 nm) penetrated deeper into root tissue and migrated to leaves, while larger ones (200 nm) mostly stayed in the roots. Both sizes impaired photosynthesis, suggesting that nanoplastic pollution in waterways can harm aquatic plants that play important roles in water purification.
Eco-environmental responses of Eichhornia crassipes rhizobacteria community to co-stress of per(poly)fluoroalkyl substances and microplastics
Researchers studied how the combined presence of microplastics and PFAS chemicals affects the bacterial communities living on water hyacinth roots. They found that these pollutants significantly altered the composition and diversity of root-associated bacteria, with different plastic types and chemical combinations producing distinct microbial shifts. The findings suggest that co-contamination by microplastics and PFAS could disrupt the beneficial microbial communities that aquatic plants depend on for healthy growth.
Anthropogenic microparticles accumulation in small-bodied seagrass meadows: The case of tropical estuarine species in Brazil
Researchers assessed the accumulation of anthropogenic microparticles in small-bodied seagrass meadows in a tropical estuary in Brazil. The study found microparticles in 80% of samples, predominantly fibers, suggesting that seagrass meadows may act as traps for microplastic pollution in coastal environments, with implications for the organisms that depend on these habitats.
Macrophytes: A Temporary Sink for Microplastics in Transitional Water Systems
Researchers found microplastics in 94% of macrophyte samples from two northern Adriatic lagoons, with contamination levels ranging from 0.16 to 330 items/g fresh weight showing a site-specific rather than species-specific pattern, and exopolysaccharides on macrophyte surfaces acting as glue to trap plastic particles.
Comprehensive Analysis of Microplastic Abundance in Macrophytes, Macrophyte-Associated Sediments, and Water in Tropical Coastal Lagoons in Sri Lanka
Researchers examined how much microplastic accumulates in aquatic plants (macrophytes) in a tropical coastal lagoon in Sri Lanka, finding that seaweeds like Gracilaria contained up to 9 microplastic particles per gram of wet weight. Fragments dominated in plant tissues while fibers were more common in sediment and water, with PET identified as a key polymer. The study underscores that macrophytes are not just passive bystanders — they actively trap microplastics, making them important indicators of coastal plastic pollution.
Microplastics in sediments from urban and suburban rivers: Influence of sediment properties
Researchers measured microplastic concentrations in sediments from 12 sites across three Vietnamese rivers in the Red River Delta during dry and rainy seasons, finding concentrations ranging from 1,600 to 94,300 items per kg dry weight. Fiber-dominated microplastic contamination was strongly influenced by sediment properties including grain size and organic carbon content.
Application of Water Hyacinth Biomass (Eichhornia crassipes) as an Adsorbent for Methylene Blue Dye from Aqueous Medium: Kinetic and Isothermal Study
This review synthesizes current knowledge on microplastic pollution in freshwater lakes globally, covering sources, distribution patterns, and ecological impacts. Urban and agricultural runoff are identified as major input pathways, with fibrous particles dominating most lake samples.
New Method of Fabricating Carbon Materials via Uptake of Nanoplastics into Eichhornia crassipes for Enhancing Supercapacitance
Researchers used water hyacinth plants that had absorbed polystyrene nanoplastics as a raw material to produce high-performance carbon electrodes for energy storage. While the study is primarily about materials engineering, it demonstrates a novel approach to removing nanoplastics from water using plants and converting the contaminated biomass into a useful product, potentially addressing two environmental problems at once.
Aquatic vascular plants – A forgotten piece of nature in microplastic research
Aquatic vascular plants accumulate microplastics on their surfaces through electrostatic attraction, leaf morphology, and periphyton, and these retained particles can be easily ingested by herbivores. The authors argue that plants are an overlooked but important pathway by which microplastics enter freshwater food webs, and deserve more research attention.
Unraveling microplastic pollution patterns in sediments of a river system: The combined impacts of seasonal changes and waterway differences
Microplastic concentrations in Saigon River and tributary sediments ranged from 140 to 1,200 items/kg, with fiber particles dominant; rainy season flows from tributaries elevated microplastic levels, while the main river showed more dilution effects.
Microplastics retention by reeds in freshwater environment
Researchers sampled microplastics in sediment and plant tissue from reed beds in a freshwater environment, finding that reeds retained significantly more microplastics than adjacent open water sediments, suggesting that emergent vegetation may act as a natural microplastic sink.
Environmental Sustainability Implications of Microplastic Accumulation in Riverbank Vegetation of the Niger, Omambala, and Idemili Rivers
Researchers examined microplastic accumulation in riverbank vegetation along the Niger, Omambala, and Idemili Rivers, assessing the environmental sustainability implications of plastic contamination in freshwater plant communities.
Aquatic plants entrap different size of plastics in indoor flume experiments
Researchers found that aquatic plants effectively entrap plastics in riverine environments, with plant species and plastic particle size influencing retention rates, suggesting vegetation plays an important role in limiting downstream plastic transport.
Microplastics in Freshwater River in Rio de Janeiro and Its Role as a Source of Microplastic Pollution in Guanabara Bay, SE Brazil
Researchers found widespread microplastic contamination in three rivers flowing into Guanabara Bay, Brazil, with an average of 3,651 particles per cubic meter dominated by fibers, identifying these freshwater systems as major sources of coastal microplastic pollution.
Aquatic Plant Mediates Microplastic Bioavailability in Herbivorous Freshwater Fish
Researchers found that aquatic plants mediate microplastic bioavailability to herbivorous freshwater fish, detecting microplastics in 82% of Nile tilapia and Redbelly tilapia sampled from an urban lake in Kumamoto, Japan, and linking ingestion pathways to plant consumption.
Microplastic contamination in the highly polluted Tietê River (São Paulo, Brazil): an unsustainable human-nature relationship
Researchers analyzed microplastic contamination in the Tiete River downstream of Sao Paulo, one of the most polluted rivers in Brazil. They found microplastics in both water and sediment samples across wet and dry seasons, with fibers and fragments being the dominant types. The study confirms that heavily urbanized areas are major sources of microplastic pollution that contaminates downstream river ecosystems.