Lifting the veil on arid-to-hyperarid Antarctic soil microbiomes: a tale of two oases
Abstract Background Resident soil microbiota play key roles in sustaining the core ecosystem processes of terrestrial Antarctica, often involving unique taxa with novel functional traits. However, the full scope of biodiversity and the niche-neutral processes underlying these communities remain uncl...
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ftdoajarticles:oai:doaj.org/article:d3fe1db577044017b36f3637e5b2100e 2023-05-15T13:58:37+02:00 Lifting the veil on arid-to-hyperarid Antarctic soil microbiomes: a tale of two oases Eden Zhang Loïc M. Thibaut Aleks Terauds Mark Raven Mark M. Tanaka Josie van Dorst Sin Yin Wong Sally Crane Belinda C. Ferrari 2020-03-01T00:00:00Z https://doi.org/10.1186/s40168-020-00809-w https://doaj.org/article/d3fe1db577044017b36f3637e5b2100e EN eng BMC http://link.springer.com/article/10.1186/s40168-020-00809-w https://doaj.org/toc/2049-2618 doi:10.1186/s40168-020-00809-w 2049-2618 https://doaj.org/article/d3fe1db577044017b36f3637e5b2100e Microbiome, Vol 8, Iss 1, Pp 1-12 (2020) Antarctica Soil Microbiome Bacteria Eukarya Archaea Conservation Ecology Microbial ecology QR100-130 article 2020 ftdoajarticles https://doi.org/10.1186/s40168-020-00809-w 2022-12-31T11:37:51Z Abstract Background Resident soil microbiota play key roles in sustaining the core ecosystem processes of terrestrial Antarctica, often involving unique taxa with novel functional traits. However, the full scope of biodiversity and the niche-neutral processes underlying these communities remain unclear. In this study, we combine multivariate analyses, co-occurrence networks and fitted species abundance distributions on an extensive set of bacterial, micro-eukaryote and archaeal amplicon sequencing data to unravel soil microbiome patterns of nine sites across two east Antarctic regions, the Vestfold Hills and Windmill Islands. To our knowledge, this is the first microbial biodiversity report on the hyperarid Vestfold Hills soil environment. Results Our findings reveal distinct regional differences in phylogenetic composition, abundance and richness amongst microbial taxa. Actinobacteria dominated soils in both regions, yet Bacteroidetes were more abundant in the Vestfold Hills compared to the Windmill Islands, which contained a high abundance of novel phyla. However, intra-region comparisons demonstrate greater homogeneity of soil microbial communities and measured environmental parameters between sites at the Vestfold Hills. Community richness is largely driven by a variable suite of parameters but robust associations between co-existing members highlight potential interactions and sharing of niche space by diverse taxa from all three microbial domains of life examined. Overall, non-neutral processes appear to structure the polar soil microbiomes studied here, with niche partitioning being particularly strong for bacterial communities at the Windmill Islands. Eukaryotic and archaeal communities reveal weaker niche-driven signatures accompanied by multimodality, suggesting the emergence of neutrality. Conclusion We provide new information on assemblage patterns, environmental drivers and non-random occurrences for Antarctic soil microbiomes, particularly the Vestfold Hills, where basic diversity, ecology and life ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Windmill Islands Directory of Open Access Journals: DOAJ Articles Antarctic Vestfold Hills Vestfold Windmill Islands ENVELOPE(110.417,110.417,-66.350,-66.350) Microbiome 8 1 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctica Soil Microbiome Bacteria Eukarya Archaea Conservation Ecology Microbial ecology QR100-130 |
spellingShingle |
Antarctica Soil Microbiome Bacteria Eukarya Archaea Conservation Ecology Microbial ecology QR100-130 Eden Zhang Loïc M. Thibaut Aleks Terauds Mark Raven Mark M. Tanaka Josie van Dorst Sin Yin Wong Sally Crane Belinda C. Ferrari Lifting the veil on arid-to-hyperarid Antarctic soil microbiomes: a tale of two oases |
topic_facet |
Antarctica Soil Microbiome Bacteria Eukarya Archaea Conservation Ecology Microbial ecology QR100-130 |
description |
Abstract Background Resident soil microbiota play key roles in sustaining the core ecosystem processes of terrestrial Antarctica, often involving unique taxa with novel functional traits. However, the full scope of biodiversity and the niche-neutral processes underlying these communities remain unclear. In this study, we combine multivariate analyses, co-occurrence networks and fitted species abundance distributions on an extensive set of bacterial, micro-eukaryote and archaeal amplicon sequencing data to unravel soil microbiome patterns of nine sites across two east Antarctic regions, the Vestfold Hills and Windmill Islands. To our knowledge, this is the first microbial biodiversity report on the hyperarid Vestfold Hills soil environment. Results Our findings reveal distinct regional differences in phylogenetic composition, abundance and richness amongst microbial taxa. Actinobacteria dominated soils in both regions, yet Bacteroidetes were more abundant in the Vestfold Hills compared to the Windmill Islands, which contained a high abundance of novel phyla. However, intra-region comparisons demonstrate greater homogeneity of soil microbial communities and measured environmental parameters between sites at the Vestfold Hills. Community richness is largely driven by a variable suite of parameters but robust associations between co-existing members highlight potential interactions and sharing of niche space by diverse taxa from all three microbial domains of life examined. Overall, non-neutral processes appear to structure the polar soil microbiomes studied here, with niche partitioning being particularly strong for bacterial communities at the Windmill Islands. Eukaryotic and archaeal communities reveal weaker niche-driven signatures accompanied by multimodality, suggesting the emergence of neutrality. Conclusion We provide new information on assemblage patterns, environmental drivers and non-random occurrences for Antarctic soil microbiomes, particularly the Vestfold Hills, where basic diversity, ecology and life ... |
format |
Article in Journal/Newspaper |
author |
Eden Zhang Loïc M. Thibaut Aleks Terauds Mark Raven Mark M. Tanaka Josie van Dorst Sin Yin Wong Sally Crane Belinda C. Ferrari |
author_facet |
Eden Zhang Loïc M. Thibaut Aleks Terauds Mark Raven Mark M. Tanaka Josie van Dorst Sin Yin Wong Sally Crane Belinda C. Ferrari |
author_sort |
Eden Zhang |
title |
Lifting the veil on arid-to-hyperarid Antarctic soil microbiomes: a tale of two oases |
title_short |
Lifting the veil on arid-to-hyperarid Antarctic soil microbiomes: a tale of two oases |
title_full |
Lifting the veil on arid-to-hyperarid Antarctic soil microbiomes: a tale of two oases |
title_fullStr |
Lifting the veil on arid-to-hyperarid Antarctic soil microbiomes: a tale of two oases |
title_full_unstemmed |
Lifting the veil on arid-to-hyperarid Antarctic soil microbiomes: a tale of two oases |
title_sort |
lifting the veil on arid-to-hyperarid antarctic soil microbiomes: a tale of two oases |
publisher |
BMC |
publishDate |
2020 |
url |
https://doi.org/10.1186/s40168-020-00809-w https://doaj.org/article/d3fe1db577044017b36f3637e5b2100e |
long_lat |
ENVELOPE(110.417,110.417,-66.350,-66.350) |
geographic |
Antarctic Vestfold Hills Vestfold Windmill Islands |
geographic_facet |
Antarctic Vestfold Hills Vestfold Windmill Islands |
genre |
Antarc* Antarctic Antarctica Windmill Islands |
genre_facet |
Antarc* Antarctic Antarctica Windmill Islands |
op_source |
Microbiome, Vol 8, Iss 1, Pp 1-12 (2020) |
op_relation |
http://link.springer.com/article/10.1186/s40168-020-00809-w https://doaj.org/toc/2049-2618 doi:10.1186/s40168-020-00809-w 2049-2618 https://doaj.org/article/d3fe1db577044017b36f3637e5b2100e |
op_doi |
https://doi.org/10.1186/s40168-020-00809-w |
container_title |
Microbiome |
container_volume |
8 |
container_issue |
1 |
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1766266982374572032 |