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A polyethylene surrogate for microbial community enrichment and characterization
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Researchers developed a method to enrich and characterize microbial communities capable of biodegrading a polyethylene surrogate, enabling study of potential polyethylene degradation over much shorter timescales than direct polyethylene experiments would allow, and using the approach to isolate several candidate degrading microbial communities.
Plastic pollution is a vast and increasing problem that has permeated the environment, affecting all aspects of the global food web. Plastics and microplastics have spread to soil, water bodies, and even the atmosphere due to decades of use in a wide range of applications. Plastics include a variety of materials with different properties and chemical characteristics, with polyethylene being a dominant fraction. Polyethylene is also an extremely persistent compound with slow rates of photodegradation or biodegradation. In this study, we developed a method to isolate communities of microbes capable of biodegrading a polyethylene surrogate. This method allows us to study potential polyethylene degradation over much shorter time periods. Using this method, we enriched several communities of microbes that can degrade the polyethylene surrogate within weeks. We also identified specific bacterial strains with a higher propensity to degrade compounds similar to polyethylene. We provide a description of the method, the variability and efficacy of four different communities, and key strains from these communities. This method should serve as a straightforward and adaptable tool for studying polyethylene biodegradation.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.