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Evidence of Plastic Biodegradation Potential by a Fungal Isolate from a Sanitary Landfill in Davao Oriental
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Scientists found a fungus living in a Philippine landfill that can actually eat into plastic bags (LDPE), creating visible cracks, holes, and damage on the plastic's surface. This matters because plastic waste—and the microplastics it breaks down into—pollutes our environment and food chain, so finding natural organisms that break down plastic could offer a cheaper, eco-friendly way to tackle plastic pollution instead of letting it linger for decades. That said, this is early-stage research, so more testing is needed before this fungus becomes a real-world waste solution.
Plastic pollution, particularly from low-density polyethylene (LDPE), remains a major environmental concern due to its resistance to natural degradation. This study aimed to isolate and characterise microorganisms associated with highly degraded LDPE plastic litter collected from the sanitary landfill in Barangay Anitap, Governor Generoso, Davao Oriental, Philippines, and to evaluate their potential to biodegrade LDPE. Five highly degraded LDPE samples were collected and used for microbial isolation. A total of 10 isolates were recovered, comprising 5 bacterial isolates (BS1–BS5) and 5 fungal isolates (FS1–FS5). Morphological characterization was performed using Nutrient Agar for bacteria and Potato Dextrose Agar for fungi. Screening assays identified fungal isolate FS3 as exhibiting the highest LDPE biodegradation potential. Visible changes in FS3-treated LDPE included surface roughening, thinning, deformation, fragmentation, and extensive fungal colonization. Stereomicroscopic examination revealed dense fungal hyphae attached to and penetrating the plastic surface. Scanning Electron Microscopy (SEM) confirmed significant surface deterioration characterized by cracks, pits, grooves, erosion patterns, and fungal penetration compared with the smooth surface of uninoculated controls. Based on morphological and microscopic characteristics, FS3 was tentatively identified as a Fusarium species, with molecular confirmation through Internal Transcribed Spacer (ITS) sequencing currently ongoing. The findings demonstrate that sanitary landfill environments harbor indigenous microorganisms capable of degrading LDPE. This study provides preliminary evidence supporting the use of landfill-derived fungi as promising biological agents for sustainable plastic waste bioremediation and environmentally friendly waste management strategies.
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Scientists found bacteria and a fungus living in dumpsite soil that can actually "eat" and break down common plastics like grocery bags and water bottles, breaking down 11-15% of the plastic material in just two weeks. This matters because these tiny organisms could one day help clean up plastic waste naturally, potentially reducing the amount of plastic (and the microplastics it breaks into) that ends up in our soil, water, and eventually our bodies. That said, this was a lab study, so more research is needed before these microbes could be used to tackle plastic pollution in the real world.
Biodegradation of Plastic by Pestalotiopsis Microspora
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Scientists have found that a certain fungus (Pestalotiopsis microspora) can actually break down plastic waste, including plastic types that normally take centuries to decompose, while also soaking up some of the carbon dioxide that contributes to climate change. This matters because plastic pollution is linked to microplastics ending up in our food, water, and even our bodies, so finding natural ways to break plastic down safely could reduce that exposure over time. The research is still early-stage, but it points to a promising, eco-friendly tool for tackling both plastic waste and greenhouse gas emissions at once.
Biodegradation of Low-Density Polyethylene and Polyethylene Terephthalate by Bacterial and Fungal Isolates from Active Dumpsites in Ogwa and Ebelle Communities of Esan Land
AI summary Read the abstract
Scientists found bacteria and a fungus living in dumpsite soil that can actually break down common plastics (like grocery bags and water bottles), eating away 11-15% of the plastic's weight in just two weeks. This matters because these plastics normally take hundreds of years to break down and often end up as microplastics in our food, water, and even our bodies—so harnessing these natural "plastic eaters" could offer a more sustainable way to clean up plastic waste before it fragments into the tiny particles linked to health concerns.
Plastic-Colonizing Fungi in the Eastern Mediterranean Sea: Community Structure and Physiological and Transcriptional Responses of Aspergillus to Pristine and Weathered PET
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Scientists found that fungi—including some types of mold—naturally colonize plastic debris floating in the Mediterranean Sea, with certain fungi actually able to break down plastic and even attach to it more after it's been weathered by sun exposure. This matters because these fungi could eventually help us develop ways to biodegrade plastic waste, but it also raises questions about whether plastic debris in the ocean is becoming a floating habitat for organisms that might affect marine food chains, since plastic-eating fungi could enter the food web that ultimately reaches our plates.
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