Article (Scientific journals)
Decoding Microbial Plastic Colonisation: Multi-Omic Insights Into the Fast-Evolving Dynamics of Early-Stage Biofilms.
Lee, Charlotte E; Messer, Lauren F; Wattiez, Ruddy et al.
2025In Proteomics, p. 202400208
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Keywords :
biofilm formation; marine biofilms; metaproteome; plastic debris; plastisphere
Abstract :
[en] Marine plastispheres represent dynamic microhabitats where microorganisms colonise plastic debris and interact. Metaproteomics has provided novel insights into the metabolic processes within these communities; however, the early metabolic interactions driving the plastisphere formation remain unclear. This study utilised metaproteomic and metagenomic approaches to explore early plastisphere formation on low-density polyethylene (LDPE) over 3 (D3) and 7 (D7) days, focusing on microbial diversity, activity and biofilm development. In total, 2948 proteins were analysed, revealing dominant proteomes from Pseudomonas and Marinomonas, with near-complete metagenome-assembled genomes (MAGs). Pseudomonas dominated at D3, whilst at D7, Marinomonas, along with Acinetobacter, Vibrio and other genera became more prevalent. Pseudomonas and Marinomonas showed high expression of reactive oxygen species (ROS) suppression proteins, associated with oxidative stress regulation, whilst granule formation, and alternative carbon utilisation enzymes, also indicated nutrient limitations. Interestingly, 13 alkanes and other xenobiotic degradation enzymes were expressed by five genera. The expression of toxins, several type VI secretion system (TVISS) proteins, and biofilm formation proteins by Pseudomonas indicated their competitive advantage against other taxa. Upregulated metabolic pathways relating to substrate transport also suggested enhanced nutrient cross-feeding within the more diverse biofilm community. These insights enhance our understanding of plastisphere ecology and its potential for biotechnological applications.
Disciplines :
Microbiology
Biochemistry, biophysics & molecular biology
Author, co-author :
Lee, Charlotte E;  Division of Biological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling, Scotland, UK
Messer, Lauren F;  Division of Biological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling, Scotland, UK
Wattiez, Ruddy  ;  Université de Mons - UMONS > Faculté des Sciences > Service de Protéomie et Microbiologie
Matallana-Surget, Sabine ;  Division of Biological and Environmental Sciences, Faculty of Natural Sciences, University of Stirling, Stirling, Scotland, UK
Language :
English
Title :
Decoding Microbial Plastic Colonisation: Multi-Omic Insights Into the Fast-Evolving Dynamics of Early-Stage Biofilms.
Publication date :
06 January 2025
Journal title :
Proteomics
ISSN :
1615-9853
eISSN :
1615-9861
Publisher :
Wiley, Germany
Pages :
e202400208
Peer reviewed :
Peer Reviewed verified by ORBi
Development Goals :
14. Life below water
6. Clean water and sanitation
Research unit :
Proteomics and Microbiology
Research institute :
R100 - Institut des Biosciences
Available on ORBi UMONS :
since 15 January 2025

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