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Plastics select for distinct early colonizing microbial populations with reproducible traits across environmental gradients.
Bos, Ryan P; Kaul, Drishti; Zettler, Erik R; Hoffman, Jeffrey M; Dupont, Christopher L; Amaral-Zettler, Linda A; Mincer, Tracy J.
Afiliación
  • Bos RP; Harbor Branch Oceanographic Institute, Florida Atlantic University, Fort Pierce, Florida, USA.
  • Kaul D; Environmental Sustainability, J. Craig Venter Institute, La Jolla, California, USA.
  • Zettler ER; Department of Marine Microbiology and Biogeochemistry, NIOZ Royal Netherlands Institute for Sea Research, Texel, The Netherlands.
  • Hoffman JM; Environmental Sustainability, J. Craig Venter Institute, La Jolla, California, USA.
  • Dupont CL; Environmental Sustainability, J. Craig Venter Institute, La Jolla, California, USA.
  • Amaral-Zettler LA; Department of Marine Microbiology and Biogeochemistry, NIOZ Royal Netherlands Institute for Sea Research, Texel, The Netherlands.
  • Mincer TJ; Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands.
Environ Microbiol ; 25(12): 2761-2775, 2023 Dec.
Article en En | MEDLINE | ID: mdl-37132662
Little is known about early plastic biofilm assemblage dynamics and successional changes over time. By incubating virgin microplastics along oceanic transects and comparing adhered microbial communities with those of naturally occurring plastic litter at the same locations, we constructed gene catalogues to contrast the metabolic differences between early and mature biofilm communities. Early colonization incubations were reproducibly dominated by Alteromonadaceae and harboured significantly higher proportions of genes associated with adhesion, biofilm formation, chemotaxis, hydrocarbon degradation and motility. Comparative genomic analyses among the Alteromonadaceae metagenome assembled genomes (MAGs) highlighted the importance of the mannose-sensitive hemagglutinin (MSHA) operon, recognized as a key factor for intestinal colonization, for early colonization of hydrophobic plastic surfaces. Synteny alignments of MSHA also demonstrated positive selection for mshA alleles across all MAGs, suggesting that mshA provides a competitive advantage for surface colonization and nutrient acquisition. Large-scale genomic characteristics of early colonizers varied little, despite environmental variability. Mature plastic biofilms were composed of predominantly Rhodobacteraceae and displayed significantly higher proportions of carbohydrate hydrolysis enzymes and genes for photosynthesis and secondary metabolism. Our metagenomic analyses provide insight into early biofilm formation on plastics in the ocean and how early colonizers self-assemble, compared to mature, phylogenetically and metabolically diverse biofilms.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plásticos / Microbiota Idioma: En Revista: Environ Microbiol Asunto de la revista: MICROBIOLOGIA / SAUDE AMBIENTAL Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
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XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plásticos / Microbiota Idioma: En Revista: Environ Microbiol Asunto de la revista: MICROBIOLOGIA / SAUDE AMBIENTAL Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido