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  Sargassum differentially shapes the microbiota composition and diversity at coastal tide sites and inland storage sites on Caribbean islands

Hervé, V., Lambourdiere, J., Rene-Trouillefou, M., Devault, D. A., & Lopez, P. J. (2021). Sargassum differentially shapes the microbiota composition and diversity at coastal tide sites and inland storage sites on Caribbean islands. Frontiers in Microbiology, 12: 701155. doi:10.3389/fmicb.2021.701155.

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https://doi.org/10.3389/fmicb.2021.701155 (Publisher version)
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 Creators:
Hervé, Vincent1, 2, Author           
Lambourdiere, Josie, Author
Rene-Trouillefou, Malika, Author
Devault, Damien Alain, Author
Lopez, Pascal Jean, Author
Affiliations:
1Max Planck Institute for Terrestrial Microbiology, Max Planck Society, Karl-von-Frisch-Strasse 10, D-35043 Marburg, DE, ou_3135468              
2Institut de Recherche sur la Biologie de l’Insecte, UMR 7261, CNRS—Université de Tours, France, ou_persistent22              

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Free keywords: Sargassum epibiont macroalgae methanogenic archaea (MA) microbial communities nematodes protists sulfate-reducing bacteria (SRB) commercial or financial relationships that could be construed as a potential conflict of interest.
 Abstract: Rafts of drifting pelagic Sargassum that are circulating across the Atlantic Ocean are complex ecosystems composed of a large number of associated species. Upon massive stranding, they lead to various socio-environmental issues including the inflow of contaminants and human health concerns. In this study, we used metabarcoding approaches to examine the differences in both the eukaryotic- and prokaryotic-associated communities from Sargassum present in two islands of the Lesser Antilles, namely Guadeloupe and Martinique. We detected significant differences in microbial community structure and composition between landing Sargassum, the surrounding seawater, and Sargassum from inland storage sites. In total we identified 22,214 prokaryotic and 17,679 eukaryotic OTUs. Among them, functional prediction analyses revealed a number of prokaryotes that might contribute to organic matter decomposition, nitrogen cycling and gas production, including sulfate-reducing bacteria at coastal landing sites, and methanogenic archaea at inland storage sites. We also found that Metazoan was the most abundant group in Sargassum samples, with nematode clades that presented exclusive or specific richness and abundance patterns depending on their Sargassum substrate. Together, these molecular inventories of the micro- and meiofauna communities provide baseline information for further characterization of trophic interactions, algal organic matter decomposition and nutrient transfers at coastal and inland storage sites.

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Language(s): eng - English
 Dates: 2021-11-16
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: Other: 34777271
DOI: 10.3389/fmicb.2021.701155
ISSN: 1664-302X (Print)1664-302x
 Degree: -

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Title: Frontiers in Microbiology
  Abbreviation : Front. Microbiol.
Source Genre: Journal
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Publ. Info: Lausanne : Frontiers Media
Pages: - Volume / Issue: 12 Sequence Number: 701155 Start / End Page: - Identifier: ISSN: 1664-302X
CoNE: https://pure.mpg.de/cone/journals/resource/1664-302X