Project description:Plastic film is a widely used material in facility agricultural production, and microplastics derived from its long-term residue and degradation can exert adverse effects on crop growth and development. Nano-titania (Nano-TiO2), as a novel nano-fertilizer, shows promising regulatory potential in alleviating microplastic phytotoxicity and improving crop stress tolerance.
Project description:Although the biodegradation of biodegradable plastics in soil and compost is well-studied, there is little knowledge on the metabolic mechanisms of synthetic polymers degradation by marine microorganisms. Here, we present a multiomics study to elucidate the biodegradation mechanism of a commercial aromatic-aliphatic copolyester film by a marine microbial enrichment culture. The plastic film and each monomer can be used as sole carbon source. Our analysis showed that the consortium synergistically degrades the polymer, different degradation steps being performed by different members of the community. Analysis of gene expression and translation profiles revealed that the relevant degradation processes in the marine consortium are closely related to poly(ethylene terephthalate) biodegradation from terrestrial microbes. Although there are multiple genes and organisms with the potential to perform a degradation step, only a few of these are active during biodegradation. Our results elucidate the potential of marine microorganisms to mineralize biodegradable plastic polymers and describe the mechanisms of labor division within the community to get maximum energetic yield from a complex synthetic substrate.
2020-09-25 | PXD018391 | Pride
Project description:microbial diversity of plastic film mulching land
