期刊
MARINE POLLUTION BULLETIN
卷 179, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2022.113660
关键词
Hydrocarbonoclastic bacteria; Pathogenic bacteria; 16S rRNA amplicon sequencing; Biofilm; Plastic debris
资金
- Fund for Scientific Research (F.R.S-FNRS) [FC 23347]
- Region SUD Provence-Alpes-Cote-d'Azur [DEB 19-405 DU]
- SUEZ
- Novamont
- La Fondation Club Med
- UKRI Natural Environment Research Council (NERC) as part as the NRF-NERC-SEAP-2020 grant call 'Understanding the Impact of Plastic Pollution on Marine Ecosystems in Southeast Asia (South East Asia Plastics (SEAP))'
- NRF [NRF-SEAP-2020-0001]
- NERC [NE/V009621/1]
Plastics accumulate in the polluted Mediterranean Sea, forming the plastisphere. The composition of microbial community on plastic is influenced by the sampling site and polymer chemical composition. Enrichment cultures show the presence of plastic-degrading microorganisms with potential role in plastic degradation.
Plastics accumulate in the environment and the Mediterranean Sea is one of the most polluted sea in the world. The plastic surface is rapidly colonized by microorganisms, forming the plastisphere. Our unique sampling supplied 107 plastic pieces from 22 geographical sites from four aquatic ecosystems (river, estuary, harbor and inshore) in the south of France in order to better understand the parameters which influence biofilm composition. In parallel, 48 enrichment cultures were performed to investigate the presence of plastic degrading-bacteria in the plastisphere. In this context, we showed that the most important drivers of microbial community structure were the sampling site followed by the polymer chemical composition. The study of pathogenic genus distribution highlighted that only 11% of our plastic samples contained higher proportions of Vibrio compared to the natural environment. Finally, results of the enrichment cultures showed a selection of hydrocarbon-degrading microorganisms suggesting their potential role in the plastic degradation.
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