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Metatranscriptomics of microbial biofilm succession on HDPE foil: uncovering plastic-degrading potential in soil communities
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This study used metatranscriptomics to profile gene expression in microbial biofilms colonizing high-density polyethylene (HDPE) plastic in soil over time, investigating whether naturally occurring soil microbial communities harbor the genetic machinery to biodegrade petrochemical-based plastic.
In this study, we address the underlying patterns of gene expression during biofilm development in a PE-associated plastisphere in soil and address the pressing question of whether natural microbial communities have the potential to biodegrade petrochemical-based plastic in the soil environment.
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Metatranscriptomics of microbial biofilm succession on HDPE foil: uncovering plastic-degrading potential in soil communities
AI summary Read the abstract
Using genetic analysis, researchers examined which microbial genes are active on polyethylene plastic surfaces in landfill soil versus undisturbed forest soil. They found that both communities carry genes capable of degrading plastic, with plastic-degrading enzymes being most active during early biofilm formation. The discovery that even undisturbed soils harbor plastic-degrading microbes is promising for bioremediation strategies, though the slow rate of natural breakdown means microplastics still persist in soils for very long periods.
Metatranscriptome profile of agricultural microbial communities enriched for plastitrophy
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Researchers used metatranscriptomic profiling of agricultural soil microbial communities enriched via a Winogradsky column with polyethylene and then minimal media with low-density polyethylene to identify novel plastic-degrading microorganisms and candidate enzymes for plastitrophic metabolism.
Microbial consortiums of putative degraders of low-density polyethylene-associated compounds in the ocean
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Researchers used metagenomics to identify microbial communities forming biofilms on polyethylene plastic in the ocean. The study found taxonomically diverse consortia that may contain organisms with polyethylene biodegradation potential, advancing understanding of the ocean plastisphere.
Microbial communities associated with plastic mulch debris in agricultural soils
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Researchers characterized microbial communities colonizing agricultural plastic mulch debris in soil using both culture-dependent and high-throughput sequencing methods. The plastic surfaces harbored distinct microbial communities compared to surrounding soil. Understanding which microbes colonize agricultural plastic debris is important for assessing biodegradation potential and the ecological role of the plastisphere in farmland.
The Terrestrial Plastisphere: Diversity and Polymer-Colonizing Potential of Plastic-Associated Microbial Communities in Soil
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Soil-buried plastic debris harbored microbial communities clearly distinct from surrounding bulk soil and from aquatic plastisphere communities, with a core set of plastic-colonizing taxa including Proteobacteria and Actinobacteria detected across both polymer types tested, suggesting that terrestrial plastisphere colonization follows predictable ecological rules.
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