Synergistic biodegradation of aromatic-aliphatic copolyester plastic by a marine microbial consortium

Ingrid E. Meyer-Cifuentes, Johannes Werner, Nico Jehmlich, Sabine E. Will, Meina Neumann-Schaal and Başak Öztürk ()
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Ingrid E. Meyer-Cifuentes: Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures
Johannes Werner: Leibniz Institute of Baltic Sea Research
Nico Jehmlich: Helmholtz-Centre for Environmental Research-UFZ
Sabine E. Will: Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures
Meina Neumann-Schaal: Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures
Başak Öztürk: Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures

Nature Communications, 2020, vol. 11, issue 1, 1-13

Abstract: Abstract The degradation of synthetic polymers by marine microorganisms is not as well understood as the degradation of plastics in soil and compost. Here, we use metagenomics, metatranscriptomics and metaproteomics to study the biodegradation of an aromatic-aliphatic copolyester blend by a marine microbial enrichment culture. The culture can use the plastic film as the sole carbon source, reaching maximum conversion to CO2 and biomass in around 15 days. The consortium degrades the polymer synergistically, with different degradation steps being performed by different community members. We identify six putative PETase-like enzymes and four putative MHETase-like enzymes, with the potential to degrade aliphatic-aromatic polymers and their degradation products, respectively. Our results show that, although there are multiple genes and organisms with the potential to perform each degradation step, only a few are active during biodegradation.

Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-19583-2

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DOI: 10.1038/s41467-020-19583-2

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