Cast from the Past? Microbial Diversity of a Neolithic Stone Circle

We studied the microbial diversity colonizing limestone rock pools at a Neolithic Monument (Arbor Low, Derbyshire, England). Five pools were analyzed: four located at the megaliths of the stone circle and one pool placed at the megalith at the Gib Hill burial mound 300 m distant. Samples were taken...

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Main Authors: Mercedes Martín-Cereceda, Amaya de Cos-Gandoy, Richard A. J. Williams, David Elliott, Andrea Serrano-Bellón, Blanca Pérez-Uz, Abel Sanchez-Jimenez
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Microorganisms
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Online Access:https://www.mdpi.com/2076-2607/12/11/2338
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author Mercedes Martín-Cereceda
Amaya de Cos-Gandoy
Richard A. J. Williams
David Elliott
Andrea Serrano-Bellón
Blanca Pérez-Uz
Abel Sanchez-Jimenez
author_facet Mercedes Martín-Cereceda
Amaya de Cos-Gandoy
Richard A. J. Williams
David Elliott
Andrea Serrano-Bellón
Blanca Pérez-Uz
Abel Sanchez-Jimenez
author_sort Mercedes Martín-Cereceda
collection DOAJ
description We studied the microbial diversity colonizing limestone rock pools at a Neolithic Monument (Arbor Low, Derbyshire, England). Five pools were analyzed: four located at the megaliths of the stone circle and one pool placed at the megalith at the Gib Hill burial mound 300 m distant. Samples were taken from rock pool walls and sediments, and investigated through molecular metabarcoding. The microbiome consisted of 23 phyla of bacteria (831 OTUs), 4 phyla of archaea (19 OTUs), and 27 phyla of microbial eukarya (596 OTUs). For bacteria, there were statistically significant differences in wall versus sediment populations, but not between pools. For archaea and eukarya, significant differences were found only between pools. The most abundant bacterial phylum in walls was Cyanobacteriota, and Pseudomonadota in sediments. For archaea and microbial eukarya, the dominant phyla were Euryarcheota and Chlorophyta, respectively, in both wall and sediments. The distant pool (P5) showed a markedly different community structure in phyla and species, habitat discrimination, and CHN content. Species sorting and dispersal limitation are discussed as mechanisms structuring the microbiome assemblages and their spatial connectivity. The Arbor Low microbiome is composed of terrestrial representatives common in extreme environments. The high presence of Cyanobacteriota and Chlorophyta in the Arbor Low stones is troubling, as these microorganisms can induce mechanical disruption by penetrating the limestone matrix through endolithic/chasmoendolithic growth. Future research should focus on the metabolic traits of strains to ascertain their implication in bioweathering and/or biomineralization.
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spelling doaj-art-cb3a94c8702a4c3b9b0f4129c714c5e22025-08-20T02:05:06ZengMDPI AGMicroorganisms2076-26072024-11-011211233810.3390/microorganisms12112338Cast from the Past? Microbial Diversity of a Neolithic Stone CircleMercedes Martín-Cereceda0Amaya de Cos-Gandoy1Richard A. J. Williams2David Elliott3Andrea Serrano-Bellón4Blanca Pérez-Uz5Abel Sanchez-Jimenez6Department of Genetics, Physiology and Microbiology, Faculty of Biology, Complutense University of Madrid, 28040 Madrid, SpainDepartment of Biodiversity, Ecology and Evolution, Faculty of Biology, Complutense University of Madrid, 28040 Madrid, SpainDepartment of Genetics, Physiology and Microbiology, Faculty of Biology, Complutense University of Madrid, 28040 Madrid, SpainNature Based Solutions Research Centre, University of Derby, Derby DE22 1GB, UKDepartment of Genetics, Physiology and Microbiology, Faculty of Biology, Complutense University of Madrid, 28040 Madrid, SpainDepartment of Genetics, Physiology and Microbiology, Faculty of Biology, Complutense University of Madrid, 28040 Madrid, SpainDepartment of Biodiversity, Ecology and Evolution, Faculty of Biology, Complutense University of Madrid, 28040 Madrid, SpainWe studied the microbial diversity colonizing limestone rock pools at a Neolithic Monument (Arbor Low, Derbyshire, England). Five pools were analyzed: four located at the megaliths of the stone circle and one pool placed at the megalith at the Gib Hill burial mound 300 m distant. Samples were taken from rock pool walls and sediments, and investigated through molecular metabarcoding. The microbiome consisted of 23 phyla of bacteria (831 OTUs), 4 phyla of archaea (19 OTUs), and 27 phyla of microbial eukarya (596 OTUs). For bacteria, there were statistically significant differences in wall versus sediment populations, but not between pools. For archaea and eukarya, significant differences were found only between pools. The most abundant bacterial phylum in walls was Cyanobacteriota, and Pseudomonadota in sediments. For archaea and microbial eukarya, the dominant phyla were Euryarcheota and Chlorophyta, respectively, in both wall and sediments. The distant pool (P5) showed a markedly different community structure in phyla and species, habitat discrimination, and CHN content. Species sorting and dispersal limitation are discussed as mechanisms structuring the microbiome assemblages and their spatial connectivity. The Arbor Low microbiome is composed of terrestrial representatives common in extreme environments. The high presence of Cyanobacteriota and Chlorophyta in the Arbor Low stones is troubling, as these microorganisms can induce mechanical disruption by penetrating the limestone matrix through endolithic/chasmoendolithic growth. Future research should focus on the metabolic traits of strains to ascertain their implication in bioweathering and/or biomineralization.https://www.mdpi.com/2076-2607/12/11/2338Arbor Lowneolithic monumentmicrobiomecyanobacteriotapseudomonadotaeuryarcheota
spellingShingle Mercedes Martín-Cereceda
Amaya de Cos-Gandoy
Richard A. J. Williams
David Elliott
Andrea Serrano-Bellón
Blanca Pérez-Uz
Abel Sanchez-Jimenez
Cast from the Past? Microbial Diversity of a Neolithic Stone Circle
Microorganisms
Arbor Low
neolithic monument
microbiome
cyanobacteriota
pseudomonadota
euryarcheota
title Cast from the Past? Microbial Diversity of a Neolithic Stone Circle
title_full Cast from the Past? Microbial Diversity of a Neolithic Stone Circle
title_fullStr Cast from the Past? Microbial Diversity of a Neolithic Stone Circle
title_full_unstemmed Cast from the Past? Microbial Diversity of a Neolithic Stone Circle
title_short Cast from the Past? Microbial Diversity of a Neolithic Stone Circle
title_sort cast from the past microbial diversity of a neolithic stone circle
topic Arbor Low
neolithic monument
microbiome
cyanobacteriota
pseudomonadota
euryarcheota
url https://www.mdpi.com/2076-2607/12/11/2338
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