Putative degraders of low-density polyethylene-derived compounds are ubiquitous members of plastic-associated bacterial communities in the marine environment
Autor: | Marta M. Varela, Jesse P. Harrison, Meinhard Simon, Teresa M. Langer, Gerhard J. Herndl, Paula Polania Zenner, Maria Pinto |
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Jazyk: | angličtina |
Rok vydání: | 2020 |
Předmět: |
Water mass
North Atlantic Ocean marine environment Oceans and Seas Microbial metabolism chemistry Microbiology Marine microbial communities 03 medical and health sciences Northern Adriatic Sea Seawater Phaeobacter Psychrobacter Ecology Evolution Behavior and Systematics Research Articles 030304 developmental biology LDPE enrichment experiments Plastic debris affecting oceans 0303 health sciences Pacific Ocean biology Bacteria 030306 microbiology Roseovarius Microbiota Roseobacter Biodegradation biology.organism_classification Low-density polyethylene Biodegradation Environmental Polyethylene Environmental chemistry plastics Ocean pollution compounds ecology Plastics Research Article |
Zdroj: | e-IEO. Repositorio Institucional Digital de Acceso Abierto del Instituto Español de Oceanografía instname Environmental Microbiology |
Popis: | Research article It remains unknown whether and to what extent marine prokaryotic communities are capable of degrading plastic in the ocean. To address this knowledge gap, we combined enrichment experiments employing low-density polyethylene (LDPE) as the sole carbon source with a comparison of bacterial communities on plastic debris in the Pacific, the North Atlantic and the northern Adriatic Sea. A total of 35 operational taxonomic units (OTUs) were enriched in the LDPE-laboratory incubations after 1 year, of which 20 were present with relative abundances > 0.5% in at least one plastic sample collected from the environment. From these, OTUs classified as Cognatiyoonia, Psychrobacter, Roseovarius and Roseobacter were found in the communities of plastics collected at all oceanic sites. Additionally, OTUs classified as Roseobacter, Pseudophaeobacter, Phaeobacter, Marinovum and Cognatiyoonia, also enriched in the LDPE-laboratory incubations, were enriched on LDPE communities compared to the ones associated to glass and polypropylene in in-situ incubations in the northern Adriatic Sea after 1 month of incubation. Some of these enriched OTUs were also related to known alkane and hydrocarbon degraders. Collectively, these results demonstrate that there are prokaryotes capable of surviving with LDPE as the sole carbon source living on plastics in relatively high abundances in different water masses of the global ocean. Austrian Academy of Sciences, Austrian Sciences Fund, University of Viena, German Federal Ministry of Education and Science (BacGeoPac project (03G0248A) and IEO (RADPROF project) 5,843 |
Databáze: | OpenAIRE |
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