Biofilms of Pseudomonas and Lysinibacillus Marine Strains on High-Density Polyethylene

Environmental pollution by plastic debris is estimated on a scale of 100 million metric tons, portion which fragmented into micro- and nanoplastics. These fragments are often colonized bacterial species in marine environments, possibly contributing to the biodegradation such materials. However, further investigations necessary determine impact abiotic polymer weathering biofilm adhesion, as well specific formation strategies employed isolates. Here, we evaluate deep-sea sediment isolates for extracellular matrix production, degradation ability. Our study focuses high-density polyethylene (HDPE) their high durability environmental persistence, subjecting prior colonization. Marine identified Pseudomonas sp. Lysinibacillus exhibited decreasing weathered HDPE, especially over first 24 h incubation. This effect was countered increased likely improving cell adhesion surfaces roughened degradation. were contrasted with reference aeruginosa strain, displayed levels non-weathered HDPE lower production Furthermore, our results suggest that an increase biomass correlated changes structure, indicating these strains have potential fragments. Therefore, this work provides detailed account bacteria-plastic interactions represent crucial steps environments.