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Synergistic bioremediation: Fungal-bacterial partnership degrades LDPE microplastics twice as fast
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Scientists tested whether pairing a fungus and a bacterium together could break down low-density polyethylene (LDPE) plastic faster than either microorganism working alone, and found the combination degraded the plastic twice as fast as the fungus alone and four times faster than the bacterium alone. After 60 days, the co-culture achieved a 26% weight loss in the plastic, dramatically shortening its theoretical half-life from 602 days to just 134 days. This kind of microbial teamwork could be a practical, environmentally friendly strategy for cleaning up plastic pollution.
Microplastics have recently emerged as one of the most critical environmental problems. LDPE has become one of the most extensively used plastic polymers, and it has a significant potential for microplastic production. The present study used a fungal-bacterial co-culture (Bacillus velezensis EBL50 and Sarocladium strictum EBL60) to degrade microplastics. The co-culture resulted in 26.3 % weight loss after 60 days-double that of fungal mono-cultures (13.2 %) and four times that of bacterial mono-cultures (6.8 %)-reducing LDPE's half-life from 602 days (bacteria alone) to 134 days. SEM revealed significant surface erosion, while FTIR and TGA indicated structural and thermal destabilisation. GC-MS analysis revealed the presence of oxidative degradation products, indicating enzymatic degradation. The findings highlight fungal-bacterial synergism as a potent and environmentally friendly method for accelerating microplastic bioremediation.
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Degradation of polypropylene and polystyrene micro plastics using novel microbial consortia
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Researchers tested two naturally occurring microbial mixtures and found that a fungal-bacterial consortium could break down roughly 30% of polypropylene and 40% of polystyrene microplastics over 27 months, with bacteria and fungi working together through enzymatic action and surface oxidation. While the timescales and degradation rates are still far from a practical solution, the findings suggest that targeting the right combination of microbes — matched to the specific plastic type — could be the key to future biological plastic cleanup strategies.
Microbial biodegradation of polypropylene microplastics: a comparative assessment of single- and dual-species models
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Scientists found that certain bacteria can break down polypropylene—a common plastic used in food containers and packaging that sheds tiny "microplastic" particles into our environment and bodies. When two types of bacteria worked together, they broke down the plastic much faster than any single strain alone (up to 49% weight loss versus 28% or less). This research points toward a promising future tool—using bacterial teams to clean up microplastic pollution—which matters because these particles are increasingly found in our food, water, and even human tissue, with still-unclear health effects.
Microbial Consortia: Synergistic Effects on Plastic Degradation and Enzyme Production
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This review synthesizes how microbial consortia outperform single isolates in plastic biodegradation through cooperative metabolism and complementary enzymatic repertoires including laccases, cutinases, and multicopper oxidases. The authors identify cross-feeding and enzyme complementarity as key drivers of superior degradation and outline design principles for scalable consortium-based plastic bioremediation.
Synergistic functional activity of a landfill microbial consortium in a microplastic-enriched environment
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Scientists studied soil bacteria from a decades-old landfill to understand how microbes adapt to high concentrations of polyethylene and PET microplastics. They found that multiple bacterial species work together to break down these plastics, with different roles for bacteria floating freely versus those attached to plastic surfaces. While biodegradation of microplastics is possible, it is slow, and understanding these natural processes could eventually help with cleanup efforts.
Wood decay fungi show enhanced biodeterioration of low-density polyethylene in the absence of wood in culture media
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Wood decay fungi normally digest cellulose and lignin, but this study found that when wood is absent, these fungi dramatically increase their degradation of low-density polyethylene (LDPE) plastic — one fungal species achieved nearly 24% weight loss in just 45 days. This shows that fungi can adapt to use plastic as a carbon source, offering a potential biological tool for breaking down plastic waste and reducing microplastic formation in the environment.
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