Article (Scientific journals)
New insights into the functioning and structure of the PE and PP plastispheres from the Mediterranean Sea
Delacuvellerie, Alice; Géron, A; Gobert, Sylvie et al.
2022In Environmental Pollution, 295 (118678), p. 1-8
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Keywords :
Plastic debris; Functional role; biofilm; Metaproteomic analysis; Metagenome; Marine Environment
Abstract :
[en] Plastic debris are accumulating in the marine environment and aggregate microorganisms that form a new ecosystem called the plastisphere. Better understanding the plastisphere is crucial as it has self-sufficient orga- nization and carries pathogens or organisms that may be involved in the pollutant adsorption and/or plastic degradation. To date, the plastisphere is mainly described at the taxonomic level and the functioning of its microbial communities still remains poorly documented. In this work, metagenomic and metaproteomic analyzes were performed on the plastisphere of polypropylene and polyethylene plastic debris sampled on a pebble beach from the Mediterranean Sea. Our results confirmed that the plastisphere was organized as self-sufficient eco- systems containing highly active primary producers, heterotrophs and predators such as nematode. Interestingly, the chemical composition of the polymer did not impact the structure of the microbial communities but rather influenced the functions expressed. Despite the fact that the presence of hydrocarbon-degrading bacteria was observed in the metagenomes, polymer degradation metabolisms were not detected at the protein level. Finally, hydrocarbon degrader (i.e., Alcanivorax) and pathogenic bacteria (i.e., Vibrionaceae) were observed in the plas- tispheres but were not very active as no proteins involved in polymer degradation or pathogeny were detected. This work brings new insights into the functioning of the microbial plastisphere developed on plastic marine debris.
Research center :
STARESO
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
Disciplines :
Environmental sciences & ecology
Aquatic sciences & oceanology
Genetics & genetic processes
Author, co-author :
Delacuvellerie, Alice;  Université de Mons - UMONS > Proteomics and Microbiology Department
Géron, A;  University of Stirling > Division of Biological and Environmental Sciences, Faculty of Natural Sciences
Gobert, Sylvie  ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Océanographie biologique
Wattiez, Rudi;  Université de Mons - UMONS > Proteomics and Microbiology Dpt
Language :
English
Title :
New insights into the functioning and structure of the PE and PP plastispheres from the Mediterranean Sea
Publication date :
2022
Journal title :
Environmental Pollution
ISSN :
0269-7491
eISSN :
1873-6424
Publisher :
Elsevier, United Kingdom
Volume :
295
Issue :
118678
Pages :
1-8
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 18 December 2021

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