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

被引：7

作者：

Beccaccioli, Marzia ^{[1
]}

Moricca, Claudia ^{[1
]}

Faino, Luigi ^{[1
]}

Reale, Rita ^{[2
]}

Mineo, Mario ^{[1
]}

Reverberi, Massimo ^{[1
]}

机构：

[1] Sapienza Univ Rome, Dept Environm Biol, Rome, Italy

[2] A Galli Acad, Chem Appl Restorat, Via Petrarca, Como, Italy

来源：

FRONTIERS IN MICROBIOLOGY | 2023年 / 14卷

关键词：

wood biodegradation; amplicon sequencing; erosion bacteria; archeological waterlogged wood; Neolithic; GEN; NOV; RHODOSPIRILLACEAE; FUTURE;

D O I：

10.3389/fmicb.2023.1129983

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

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.

引用

页数：10

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