Proliferation of purple sulphur bacteria at the sediment surface affects intertidal mat diversity and functionality.

There is a relative absence of studies dealing with mats of purple sulphur bacteria in the intertidal zone. These bacteria display an array of metabolic pathways that allow them to disperse and develop under a wide variety of conditions, making these mats important in terms of ecosystem processes an...

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Autores principales:	Cédric Hubas, Bruno Jesus, Mickael Ruivo, Tarik Meziane, Najet Thiney, Dominique Davoult, Nicolas Spilmont, David M Paterson, Christian Jeanthon
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a4ab597706264869bd6d152815ce3b8e
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spelling	oai:doaj.org-article:a4ab597706264869bd6d152815ce3b8e2021-11-18T08:43:17ZProliferation of purple sulphur bacteria at the sediment surface affects intertidal mat diversity and functionality.1932-620310.1371/journal.pone.0082329https://doaj.org/article/a4ab597706264869bd6d152815ce3b8e2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24340018/?tool=EBIhttps://doaj.org/toc/1932-6203There is a relative absence of studies dealing with mats of purple sulphur bacteria in the intertidal zone. These bacteria display an array of metabolic pathways that allow them to disperse and develop under a wide variety of conditions, making these mats important in terms of ecosystem processes and functions. Mass blooms of purple sulphur bacteria develop during summer on sediments in the intertidal zone especially on macroalgal deposits. The microbial composition of different types of mats differentially affected by the development of purple sulphur bacteria was examined, at low tide, using a set of biochemical markers (fatty acids, pigments) and composition was assessed against their influence on ecosystem functions (sediment cohesiveness, CO2 fixation). We demonstrated that proliferation of purple sulphur bacteria has a major impact on intertidal mats diversity and functions. Indeed, assemblages dominated by purple sulphur bacteria (Chromatiaceae) were efficient exopolymer producers and their biostabilisation potential was significant. In addition, the massive growth of purple sulphur bacteria resulted in a net CO2 degassing whereas diatom dominated biofilms represented a net CO2 sink.Cédric HubasBruno JesusMickael RuivoTarik MezianeNajet ThineyDominique DavoultNicolas SpilmontDavid M PatersonChristian JeanthonPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 12, p e82329 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Cédric Hubas Bruno Jesus Mickael Ruivo Tarik Meziane Najet Thiney Dominique Davoult Nicolas Spilmont David M Paterson Christian Jeanthon Proliferation of purple sulphur bacteria at the sediment surface affects intertidal mat diversity and functionality.
description	There is a relative absence of studies dealing with mats of purple sulphur bacteria in the intertidal zone. These bacteria display an array of metabolic pathways that allow them to disperse and develop under a wide variety of conditions, making these mats important in terms of ecosystem processes and functions. Mass blooms of purple sulphur bacteria develop during summer on sediments in the intertidal zone especially on macroalgal deposits. The microbial composition of different types of mats differentially affected by the development of purple sulphur bacteria was examined, at low tide, using a set of biochemical markers (fatty acids, pigments) and composition was assessed against their influence on ecosystem functions (sediment cohesiveness, CO2 fixation). We demonstrated that proliferation of purple sulphur bacteria has a major impact on intertidal mats diversity and functions. Indeed, assemblages dominated by purple sulphur bacteria (Chromatiaceae) were efficient exopolymer producers and their biostabilisation potential was significant. In addition, the massive growth of purple sulphur bacteria resulted in a net CO2 degassing whereas diatom dominated biofilms represented a net CO2 sink.
format	article
author	Cédric Hubas Bruno Jesus Mickael Ruivo Tarik Meziane Najet Thiney Dominique Davoult Nicolas Spilmont David M Paterson Christian Jeanthon
author_facet	Cédric Hubas Bruno Jesus Mickael Ruivo Tarik Meziane Najet Thiney Dominique Davoult Nicolas Spilmont David M Paterson Christian Jeanthon
author_sort	Cédric Hubas
title	Proliferation of purple sulphur bacteria at the sediment surface affects intertidal mat diversity and functionality.
title_short	Proliferation of purple sulphur bacteria at the sediment surface affects intertidal mat diversity and functionality.
title_full	Proliferation of purple sulphur bacteria at the sediment surface affects intertidal mat diversity and functionality.
title_fullStr	Proliferation of purple sulphur bacteria at the sediment surface affects intertidal mat diversity and functionality.
title_full_unstemmed	Proliferation of purple sulphur bacteria at the sediment surface affects intertidal mat diversity and functionality.
title_sort	proliferation of purple sulphur bacteria at the sediment surface affects intertidal mat diversity and functionality.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/a4ab597706264869bd6d152815ce3b8e
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Proliferation of purple sulphur bacteria at the sediment surface affects intertidal mat diversity and functionality.

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