Rapid peat accumulation favours the occurrence of both fen and bog microbial communities within a Mediterranean, free-floating peat island

Abstract The unique environment of a 4m-thick, free-floating peat island within the Posta Fibreno lake (Central Italy) was analyzed using DNA-based techniques to assess bacterial and fungal community members identity and abundance. Two depths were sampled at 41 and 279 cm from the surface, the forme...

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Autores principales:	Giuseppe Concheri, Piergiorgio Stevanato, Claudio Zaccone, William Shotyk, Valeria D’Orazio, Teodoro Miano, Pietro Piffanelli, Valeria Rizzi, Chiara Ferrandi, Andrea Squartini
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/96e3f8db5956443aa4250995ade1e9c6
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spelling	oai:doaj.org-article:96e3f8db5956443aa4250995ade1e9c62021-12-02T11:52:26ZRapid peat accumulation favours the occurrence of both fen and bog microbial communities within a Mediterranean, free-floating peat island10.1038/s41598-017-08662-y2045-2322https://doaj.org/article/96e3f8db5956443aa4250995ade1e9c62017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08662-yhttps://doaj.org/toc/2045-2322Abstract The unique environment of a 4m-thick, free-floating peat island within the Posta Fibreno lake (Central Italy) was analyzed using DNA-based techniques to assess bacterial and fungal community members identity and abundance. Two depths were sampled at 41 and 279 cm from the surface, the former corresponding to an emerged portion of Sphagnum residues accumulated less than 30 yrs ago, and the latter mainly consisting of silty peat belonging to the deeply submerged part of the island, dating back to 1520–1660 AD. The corresponding communities were very diverse, each of them dominated by a different member of the Delta-proteobacteria class for prokaryotes. Among Eukaryotes, Ascomycota prevailed in the shallow layer while Basidiomycota were abundant in the deep sample. The identity of taxa partitioning between acidic surface layer and neutral core is very reminiscent of the differences reported between bogs and fens respectively, supporting the view of Posta Fibreno as a relic transitional floating mire. Moreover, some microbial taxa show an unusual concurrent species convergence between this sub-Mediterranean site and far Nordic or circumpolar environments. This study represents the first report describing the biotic assemblages of such a peculiar environment, and provides some insights into the possible mechanisms of its evolution.Giuseppe ConcheriPiergiorgio StevanatoClaudio ZacconeWilliam ShotykValeria D’OrazioTeodoro MianoPietro PiffanelliValeria RizziChiara FerrandiAndrea SquartiniNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Giuseppe Concheri Piergiorgio Stevanato Claudio Zaccone William Shotyk Valeria D’Orazio Teodoro Miano Pietro Piffanelli Valeria Rizzi Chiara Ferrandi Andrea Squartini Rapid peat accumulation favours the occurrence of both fen and bog microbial communities within a Mediterranean, free-floating peat island
description	Abstract The unique environment of a 4m-thick, free-floating peat island within the Posta Fibreno lake (Central Italy) was analyzed using DNA-based techniques to assess bacterial and fungal community members identity and abundance. Two depths were sampled at 41 and 279 cm from the surface, the former corresponding to an emerged portion of Sphagnum residues accumulated less than 30 yrs ago, and the latter mainly consisting of silty peat belonging to the deeply submerged part of the island, dating back to 1520–1660 AD. The corresponding communities were very diverse, each of them dominated by a different member of the Delta-proteobacteria class for prokaryotes. Among Eukaryotes, Ascomycota prevailed in the shallow layer while Basidiomycota were abundant in the deep sample. The identity of taxa partitioning between acidic surface layer and neutral core is very reminiscent of the differences reported between bogs and fens respectively, supporting the view of Posta Fibreno as a relic transitional floating mire. Moreover, some microbial taxa show an unusual concurrent species convergence between this sub-Mediterranean site and far Nordic or circumpolar environments. This study represents the first report describing the biotic assemblages of such a peculiar environment, and provides some insights into the possible mechanisms of its evolution.
format	article
author	Giuseppe Concheri Piergiorgio Stevanato Claudio Zaccone William Shotyk Valeria D’Orazio Teodoro Miano Pietro Piffanelli Valeria Rizzi Chiara Ferrandi Andrea Squartini
author_facet	Giuseppe Concheri Piergiorgio Stevanato Claudio Zaccone William Shotyk Valeria D’Orazio Teodoro Miano Pietro Piffanelli Valeria Rizzi Chiara Ferrandi Andrea Squartini
author_sort	Giuseppe Concheri
title	Rapid peat accumulation favours the occurrence of both fen and bog microbial communities within a Mediterranean, free-floating peat island
title_short	Rapid peat accumulation favours the occurrence of both fen and bog microbial communities within a Mediterranean, free-floating peat island
title_full	Rapid peat accumulation favours the occurrence of both fen and bog microbial communities within a Mediterranean, free-floating peat island
title_fullStr	Rapid peat accumulation favours the occurrence of both fen and bog microbial communities within a Mediterranean, free-floating peat island
title_full_unstemmed	Rapid peat accumulation favours the occurrence of both fen and bog microbial communities within a Mediterranean, free-floating peat island
title_sort	rapid peat accumulation favours the occurrence of both fen and bog microbial communities within a mediterranean, free-floating peat island
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/96e3f8db5956443aa4250995ade1e9c6
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Rapid peat accumulation favours the occurrence of both fen and bog microbial communities within a Mediterranean, free-floating peat island

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