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Microplastic Associated Microorganisms: Isolation, Identification and Assessment of Biofilm-Based Degradation Potential
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Scientists found naturally occurring bacteria and fungi living on microplastics in polluted soil and water that can actually break down these tiny plastic particles over time. This matters because microplastics are showing up everywhere—including in our food, water, and bodies—and these microbe-based cleanup methods could offer a more natural, sustainable way to reduce plastic pollution before it accumulates further in our environment and, potentially, our health.
Microplastics have become major environmental contaminants because of their persistence and extensive distribution in both terrestrial and aquatic ecosystems. The present study aimed to isolate and identify microorganisms associated with microplastics and to evaluate their potential for biofilm-mediated plastic degradation. Soil and water samples were collected from plastic-polluted sites, and microplastics were extracted using density separation followed by hydrogen peroxide digestion. Fourier Transform Infrared (FTIR) spectroscopy confirmed the presence of polyolefin-based microplastics in the collected samples. Associated bacterial and fungal isolates were characterized through morphological and biochemical analyses. The biofilm-forming ability of the isolates was assessed using Congo Red Agar and tube assay methods. Furthermore, selected microbial isolates demonstrated noticeable plastic degradation potential based on weight loss measurements of treated plastic samples. The findings of this study emphasize the significant role of indigenous microorganisms in the sustainable bioremediation of microplastic pollution.
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Time-resolved colonization patterns of bacteria and fungi on polystyrene microplastics in floodplain soils
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Scientists studied how bacteria and fungi grow on tiny plastic particles (microplastics) buried in soil over several months. They found that these microbes form films on the plastic surfaces and some types can actually break down the plastic particles. This matters because microplastics are everywhere in our environment, and understanding how soil microbes interact with them could help us learn whether these plastics break down naturally or accumulate in ways that might affect our food and water.
The Role of Microorganisms In The Bioremediation of Microplasticsin Soil: Systematic Literature Review
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This review of 40 studies found that certain bacteria, fungi, and algae in soil can naturally break down microplastics into harmless simpler compounds using their own enzymes and biological processes. This matters because microplastics contaminate the soil that grows our food, and understanding how nature can clean them up could lead to safer, eco-friendly ways to reduce this pollution before it works its way into crops and, eventually, our bodies.
Isolation and Characterization of PET-Degrading Bacteria from Plastic Waste- Contaminated Soil in Western India
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Scientists found bacteria living in plastic-polluted soil in India that can actually break down PET plastic (the type used in water bottles and food packaging). This matters because PET plastic pollution is a major source of the microplastics now found in our food, water, and even our bodies — and these natural bacteria could eventually help clean up plastic waste before it breaks down into the tiny particles that pose health risks.
Harnessing microorganisms for multiscale biodegradation of microplastics and nanoplastics in terrestrial and aquatic environments
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Tiny plastic particles called microplastics and nanoplastics have spread throughout our soil and water, and scientists once thought they'd stick around forever—but this review of existing research shows certain microbes and environmental conditions (like sunlight, heat, and moisture) can actually break some of them down. This matters because it hints at future cleanup methods using bacteria, fungi, or even plants working with microbes to reduce plastic pollution before it builds up further in our food and water supplies. That said, scientists still don't fully understand how this breakdown happens or whether it's safe and scalable enough to rely on, so more research is needed before this
Bioremoval_of_PE_MPs
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Scientists tested whether a common fungus can break down polyethylene microplastics—tiny plastic particles found in water, soil, and even our bodies—and found the fungus's ability to remove them depends on the plastic's size and shape. This matters because microplastics are increasingly linked to health concerns, and finding natural, low-cost ways like fungi to clean them up from water and the environment could help reduce our overall exposure to this pollution.
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