Deciphering biodiversity and interactions between bacteria and microeukaryotes within epilithic biofilms from the Loue River, France

Abstract Epilithic river biofilms are complex matrix-enclosed communities harboring a great diversity of prokaryotic and eukaryotic microorganisms. Interactions between these communities and the relative impacts of environmental factors on their compositions are poorly understood. In this study, we...

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Autores principales:	Anouk Zancarini, Isidora Echenique-Subiabre, Didier Debroas, Najwa Taïb, Catherine Quiblier, Jean-François Humbert
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f6bd15806251475c9b7750aa4ef3bea6
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spelling	oai:doaj.org-article:f6bd15806251475c9b7750aa4ef3bea62021-12-02T11:52:33ZDeciphering biodiversity and interactions between bacteria and microeukaryotes within epilithic biofilms from the Loue River, France10.1038/s41598-017-04016-w2045-2322https://doaj.org/article/f6bd15806251475c9b7750aa4ef3bea62017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04016-whttps://doaj.org/toc/2045-2322Abstract Epilithic river biofilms are complex matrix-enclosed communities harboring a great diversity of prokaryotic and eukaryotic microorganisms. Interactions between these communities and the relative impacts of environmental factors on their compositions are poorly understood. In this study, we assessed the spatio-temporal variation in the diversity and composition of bacterial and microeukaryotic communities within biofilms in a French river. Significant changes were found in the composition of these microbial communities over the sampling period and between the upstream and downstream stations. In addition, the beta diversity of the bacterial community tended to decrease along the river, mostly as a result of turnover. These changes could be caused by the different water temperatures and geological and hydrological river contexts at the sampling sites (from karst landscape to river plain). Finally, our network analysis showed multiple correlations among dominant OTUs. Among them, negative correlations between Rhodobacteraceae and two other dominant groups of photosynthetic microorganisms (cyanobacteria and diatoms) were particularly interesting, which raises the question of what environmental factors trigger the changes occurring in benthic microbial photosynthetic communities.Anouk ZancariniIsidora Echenique-SubiabreDidier DebroasNajwa TaïbCatherine QuiblierJean-François HumbertNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-13 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Anouk Zancarini Isidora Echenique-Subiabre Didier Debroas Najwa Taïb Catherine Quiblier Jean-François Humbert Deciphering biodiversity and interactions between bacteria and microeukaryotes within epilithic biofilms from the Loue River, France
description	Abstract Epilithic river biofilms are complex matrix-enclosed communities harboring a great diversity of prokaryotic and eukaryotic microorganisms. Interactions between these communities and the relative impacts of environmental factors on their compositions are poorly understood. In this study, we assessed the spatio-temporal variation in the diversity and composition of bacterial and microeukaryotic communities within biofilms in a French river. Significant changes were found in the composition of these microbial communities over the sampling period and between the upstream and downstream stations. In addition, the beta diversity of the bacterial community tended to decrease along the river, mostly as a result of turnover. These changes could be caused by the different water temperatures and geological and hydrological river contexts at the sampling sites (from karst landscape to river plain). Finally, our network analysis showed multiple correlations among dominant OTUs. Among them, negative correlations between Rhodobacteraceae and two other dominant groups of photosynthetic microorganisms (cyanobacteria and diatoms) were particularly interesting, which raises the question of what environmental factors trigger the changes occurring in benthic microbial photosynthetic communities.
format	article
author	Anouk Zancarini Isidora Echenique-Subiabre Didier Debroas Najwa Taïb Catherine Quiblier Jean-François Humbert
author_facet	Anouk Zancarini Isidora Echenique-Subiabre Didier Debroas Najwa Taïb Catherine Quiblier Jean-François Humbert
author_sort	Anouk Zancarini
title	Deciphering biodiversity and interactions between bacteria and microeukaryotes within epilithic biofilms from the Loue River, France
title_short	Deciphering biodiversity and interactions between bacteria and microeukaryotes within epilithic biofilms from the Loue River, France
title_full	Deciphering biodiversity and interactions between bacteria and microeukaryotes within epilithic biofilms from the Loue River, France
title_fullStr	Deciphering biodiversity and interactions between bacteria and microeukaryotes within epilithic biofilms from the Loue River, France
title_full_unstemmed	Deciphering biodiversity and interactions between bacteria and microeukaryotes within epilithic biofilms from the Loue River, France
title_sort	deciphering biodiversity and interactions between bacteria and microeukaryotes within epilithic biofilms from the loue river, france
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/f6bd15806251475c9b7750aa4ef3bea6
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Deciphering biodiversity and interactions between bacteria and microeukaryotes within epilithic biofilms from the Loue River, France

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