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Identification Of The Microplastic Accumulation Potential in Lemna Minor Plant
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Researchers incubated common duckweed (Lemna minor) in Citarum River water for 14 days and found peak microplastic absorption between days 5–7, with the plant removing up to 6% of particles per gram of biomass and preferentially accumulating fiber-shaped particles in the 1–3 mm size range.
Microplastics are plastic particles smaller than 5 mm that pollute soil, water, and living organisms, and can carry toxic substances into environment. Therefore, efficient methods are needed to remove microplastics from the environment. Lemna minor is a small, fast-growing aquatic plant that is tolerant of pollution and is believed to be capable of absorbing microplastics from water bodies. This study aims to examine the potential of Lemna minor to absorb microplastics using water samples from the Citarum River, which contains microplastics with specific characteristics. The research focuses on analyzing microplastic accumulation, absorption efficiency, plant growth, characteristics of absorbed microplastics, and recommendations for ideal absorption conditions. The plants were incubated in the water samples for 14 days, with a 3-day acclimatization period to ensure optimal environmental adaptation. Observations were conducted periodically on days 1, 3, 5, 7, and 14 to measure microplastic accumulation and biomass changes. Results showed that the most effective absorption occurred between days 5 and 7, with a removal rate reaching 6% per gram of plant biomass (with 15 g biomass). Additionally, the plants exhibited rapid growth until day 7, with a growth rate of 25%. The most absorbed microplastics were fiber-shaped (87%), blue in color (54.5%), and sized 1001–3000 μm.
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Long-term interactions between microplastics and floating macrophyte Lemna minor: The potential for phytoremediation of microplastics in the aquatic environment
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Researchers studied whether the floating aquatic plant Lemna minor could be used to remove microplastics from water through a 12-week experiment. The plant tolerated high concentrations of polyethylene microplastics without significant health effects after an initial adjustment period, and the particles adhered readily to the plant biomass. The findings suggest that duckweed-based systems could offer a nature-based approach for capturing microplastics from contaminated waterways.
Phytoremediation potential of Lemna minor for removal of microplastics from aquatic environment
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Researchers investigated how the aquatic plant duckweed (Lemna minor) interacts with polyethylene microplastics, finding that the plant physically binds microplastics to its surface over time. The findings suggest duckweed has potential as a low-cost phytoremediation tool for removing microplastics from contaminated water.
The Response of Duckweed Lemna minor to Microplastics and Its Potential Use as a Bioindicator of Microplastic Pollution
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Researchers tested duckweed Lemna minor as a bioindicator for freshwater microplastic pollution by exposing it to polyethylene microbeads, tire wear particles, PET fibers, and natural particles. Polyethylene microbeads adhered to duckweed at 10 times the rate of other particles and reduced root length, suggesting duckweed could serve as a practical monitor for the dominant polyethylene microplastics in freshwater.
Polyethylene microplastics adhere to Lemna minor (L.), yet have no effects on plant growth or feeding by Gammarus duebeni (Lillj.)
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Researchers found that polyethylene microplastics readily adhered to all surfaces of the duckweed species Lemna minor but did not affect the plant's photosynthetic efficiency or growth over seven days. When microplastic-coated duckweed was fed to the freshwater amphipod Gammarus duebeni, the animals showed no changes in feeding behavior. The study suggests that aquatic plants may serve as vectors for microplastic transfer through freshwater food webs, even without being directly harmed.
Effects of Microplastic Contamination on the Aquatic Plant Lemna minuta (Least Duckweed)
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Researchers tested the effects of microplastic contamination on the aquatic plant Lemna minuta, commonly known as least duckweed. The study found that exposure to microplastics affected plant growth and caused biochemical changes including altered chlorophyll levels over a 28-day period. The results suggest that microplastics can interfere with freshwater plant health, potentially disrupting aquatic ecosystems.
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