The Neolithic site “La Marmotta”: DNA metabarcoding to identify the microbial deterioration of waterlogged archeological wood

IntroductionThe evaluation of biological degradation of waterlogged archeological wood is crucial to choose the conservative and protective treatments to be applied to the wooden material. The waterlogged environmental conditions are characterized by oxygen scarcity, only allowing the growth of adap...

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Main Authors: Marzia Beccaccioli, Claudia Moricca, Luigi Faino, Rita Reale, Mario Mineo, Massimo Reverberi
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-03-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2023.1129983/full
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author Marzia Beccaccioli
Claudia Moricca
Luigi Faino
Rita Reale
Mario Mineo
Massimo Reverberi
author_facet Marzia Beccaccioli
Claudia Moricca
Luigi Faino
Rita Reale
Mario Mineo
Massimo Reverberi
author_sort Marzia Beccaccioli
collection DOAJ
description IntroductionThe evaluation of biological degradation of waterlogged archeological wood is crucial to choose the conservative and protective treatments to be applied to the wooden material. The waterlogged environmental conditions are characterized by oxygen scarcity, only allowing the growth of adapted microbes capable to degrade the organic wooden material, mainly erosion bacteria and soft-rot fungi. In this work, we characterized and evaluated the biodegradation state and the microbial communities of wooden fragments preserved in storage tanks. These were preserved by waterlogging within the Neolithic village “La Marmotta,” currently found under the Bracciano Lake (Lazio, Italy).MethodsThe waterlogged wood samples were first identified taxonomically with an optical microscope, also allowing an evaluation of their preservation state. The microbial community was then evaluated through the sequencing of Internal Transcribed Spacer sequences for fungi and 16S for bacteria with the Oxford Nanopore Technologies (ONT) MinION platform.ResultsThe identified microbial community appears to be consistent with the waterlogged samples, as many bacteria attributable to the erosion of wood and ligninolytic fungi have been sequenced.DiscussionThe reported results highlight the first use of targeted metabarcoding by ONT applied to study the biodeterioration of waterlogged archeological wood.
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spelling doaj.art-57c141cbccea4526831ed6a314062fe42023-03-23T06:47:21ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2023-03-011410.3389/fmicb.2023.11299831129983The Neolithic site “La Marmotta”: DNA metabarcoding to identify the microbial deterioration of waterlogged archeological woodMarzia Beccaccioli0Claudia Moricca1Luigi Faino2Rita Reale3Mario Mineo4Massimo Reverberi5Department of Environmental Biology, “Sapienza” University of Rome, Rome, ItalyDepartment of Environmental Biology, “Sapienza” University of Rome, Rome, ItalyDepartment of Environmental Biology, “Sapienza” University of Rome, Rome, ItalyChemistry Applied to Restoration, A. Galli Academy, Via Petrarca, Como, ItalyDepartment of Environmental Biology, “Sapienza” University of Rome, Rome, ItalyDepartment of Environmental Biology, “Sapienza” University of Rome, Rome, ItalyIntroductionThe evaluation of biological degradation of waterlogged archeological wood is crucial to choose the conservative and protective treatments to be applied to the wooden material. The waterlogged environmental conditions are characterized by oxygen scarcity, only allowing the growth of adapted microbes capable to degrade the organic wooden material, mainly erosion bacteria and soft-rot fungi. In this work, we characterized and evaluated the biodegradation state and the microbial communities of wooden fragments preserved in storage tanks. These were preserved by waterlogging within the Neolithic village “La Marmotta,” currently found under the Bracciano Lake (Lazio, Italy).MethodsThe waterlogged wood samples were first identified taxonomically with an optical microscope, also allowing an evaluation of their preservation state. The microbial community was then evaluated through the sequencing of Internal Transcribed Spacer sequences for fungi and 16S for bacteria with the Oxford Nanopore Technologies (ONT) MinION platform.ResultsThe identified microbial community appears to be consistent with the waterlogged samples, as many bacteria attributable to the erosion of wood and ligninolytic fungi have been sequenced.DiscussionThe reported results highlight the first use of targeted metabarcoding by ONT applied to study the biodeterioration of waterlogged archeological wood.https://www.frontiersin.org/articles/10.3389/fmicb.2023.1129983/fullwood biodegradationamplicon sequencingerosion bacteriaarcheological waterlogged woodNeolithic
spellingShingle Marzia Beccaccioli
Claudia Moricca
Luigi Faino
Rita Reale
Mario Mineo
Massimo Reverberi
The Neolithic site “La Marmotta”: DNA metabarcoding to identify the microbial deterioration of waterlogged archeological wood
Frontiers in Microbiology
wood biodegradation
amplicon sequencing
erosion bacteria
archeological waterlogged wood
Neolithic
title The Neolithic site “La Marmotta”: DNA metabarcoding to identify the microbial deterioration of waterlogged archeological wood
title_full The Neolithic site “La Marmotta”: DNA metabarcoding to identify the microbial deterioration of waterlogged archeological wood
title_fullStr The Neolithic site “La Marmotta”: DNA metabarcoding to identify the microbial deterioration of waterlogged archeological wood
title_full_unstemmed The Neolithic site “La Marmotta”: DNA metabarcoding to identify the microbial deterioration of waterlogged archeological wood
title_short The Neolithic site “La Marmotta”: DNA metabarcoding to identify the microbial deterioration of waterlogged archeological wood
title_sort neolithic site la marmotta dna metabarcoding to identify the microbial deterioration of waterlogged archeological wood
topic wood biodegradation
amplicon sequencing
erosion bacteria
archeological waterlogged wood
Neolithic
url https://www.frontiersin.org/articles/10.3389/fmicb.2023.1129983/full
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