Endolithic Fungal Species Markers for Harshest Conditions in the McMurdo Dry Valleys, Antarctica
The microbial communities that inhabit lithic niches inside sandstone in the Antarctic McMurdo Dry Valleys of life’s limits on Earth. The cryptoendolithic communities survive in these ice-free areas that have the lowest temperatures on Earth coupled with strong thermal fluctuations, extreme aridity,...
Published in: | Life |
---|---|
Main Authors: | , , , , , |
Format: | Text |
Language: | English |
Published: |
Multidisciplinary Digital Publishing Institute
2020
|
Subjects: | |
Online Access: | https://doi.org/10.3390/life10020013 |
id |
ftmdpi:oai:mdpi.com:/2075-1729/10/2/13/ |
---|---|
record_format |
openpolar |
spelling |
ftmdpi:oai:mdpi.com:/2075-1729/10/2/13/ 2023-08-20T04:00:06+02:00 Endolithic Fungal Species Markers for Harshest Conditions in the McMurdo Dry Valleys, Antarctica Claudia Coleine Nuttapon Pombubpa Laura Zucconi Silvano Onofri Jason E. Stajich Laura Selbmann agris 2020-02-06 application/pdf https://doi.org/10.3390/life10020013 EN eng Multidisciplinary Digital Publishing Institute Origin of Life https://dx.doi.org/10.3390/life10020013 https://creativecommons.org/licenses/by/4.0/ Life; Volume 10; Issue 2; Pages: 13 Antarctica cryptoendolithic communities McMurdo Dry Valleys ITS metabarcoding fungi marker species Text 2020 ftmdpi https://doi.org/10.3390/life10020013 2023-07-31T23:05:05Z The microbial communities that inhabit lithic niches inside sandstone in the Antarctic McMurdo Dry Valleys of life’s limits on Earth. The cryptoendolithic communities survive in these ice-free areas that have the lowest temperatures on Earth coupled with strong thermal fluctuations, extreme aridity, oligotrophy and high levels of solar and UV radiation. In this study, based on DNA metabarcoding, targeting the fungal Internal Transcribed Spacer region 1 (ITS1) and multivariate statistical analyses, we supply the first comprehensive overview onto the fungal diversity and composition of these communities sampled over a broad geographic area of the Antarctic hyper-arid cold desert. Six locations with surfaces that experience variable sun exposure were sampled to compare communities from a common area across a gradient of environmental pressure. The Operational Taxonomic Units (OTUs) identified were primarily members of the Ascomycota phylum, comprised mostly of the Lecanoromycetes and Dothideomycetes classes. The fungal species Friedmanniomyces endolithicus, endemic to Antarctica, was found to be a marker species to the harshest conditions occurring in the shady, south exposed rock surfaces. Analysis of community composition showed that sun exposure was an environmental property that explained community diversity and structured endolithic colonization. Text Antarc* Antarctic Antarctica McMurdo Dry Valleys MDPI Open Access Publishing Antarctic The Antarctic McMurdo Dry Valleys Life 10 2 13 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
Antarctica cryptoendolithic communities McMurdo Dry Valleys ITS metabarcoding fungi marker species |
spellingShingle |
Antarctica cryptoendolithic communities McMurdo Dry Valleys ITS metabarcoding fungi marker species Claudia Coleine Nuttapon Pombubpa Laura Zucconi Silvano Onofri Jason E. Stajich Laura Selbmann Endolithic Fungal Species Markers for Harshest Conditions in the McMurdo Dry Valleys, Antarctica |
topic_facet |
Antarctica cryptoendolithic communities McMurdo Dry Valleys ITS metabarcoding fungi marker species |
description |
The microbial communities that inhabit lithic niches inside sandstone in the Antarctic McMurdo Dry Valleys of life’s limits on Earth. The cryptoendolithic communities survive in these ice-free areas that have the lowest temperatures on Earth coupled with strong thermal fluctuations, extreme aridity, oligotrophy and high levels of solar and UV radiation. In this study, based on DNA metabarcoding, targeting the fungal Internal Transcribed Spacer region 1 (ITS1) and multivariate statistical analyses, we supply the first comprehensive overview onto the fungal diversity and composition of these communities sampled over a broad geographic area of the Antarctic hyper-arid cold desert. Six locations with surfaces that experience variable sun exposure were sampled to compare communities from a common area across a gradient of environmental pressure. The Operational Taxonomic Units (OTUs) identified were primarily members of the Ascomycota phylum, comprised mostly of the Lecanoromycetes and Dothideomycetes classes. The fungal species Friedmanniomyces endolithicus, endemic to Antarctica, was found to be a marker species to the harshest conditions occurring in the shady, south exposed rock surfaces. Analysis of community composition showed that sun exposure was an environmental property that explained community diversity and structured endolithic colonization. |
format |
Text |
author |
Claudia Coleine Nuttapon Pombubpa Laura Zucconi Silvano Onofri Jason E. Stajich Laura Selbmann |
author_facet |
Claudia Coleine Nuttapon Pombubpa Laura Zucconi Silvano Onofri Jason E. Stajich Laura Selbmann |
author_sort |
Claudia Coleine |
title |
Endolithic Fungal Species Markers for Harshest Conditions in the McMurdo Dry Valleys, Antarctica |
title_short |
Endolithic Fungal Species Markers for Harshest Conditions in the McMurdo Dry Valleys, Antarctica |
title_full |
Endolithic Fungal Species Markers for Harshest Conditions in the McMurdo Dry Valleys, Antarctica |
title_fullStr |
Endolithic Fungal Species Markers for Harshest Conditions in the McMurdo Dry Valleys, Antarctica |
title_full_unstemmed |
Endolithic Fungal Species Markers for Harshest Conditions in the McMurdo Dry Valleys, Antarctica |
title_sort |
endolithic fungal species markers for harshest conditions in the mcmurdo dry valleys, antarctica |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2020 |
url |
https://doi.org/10.3390/life10020013 |
op_coverage |
agris |
geographic |
Antarctic The Antarctic McMurdo Dry Valleys |
geographic_facet |
Antarctic The Antarctic McMurdo Dry Valleys |
genre |
Antarc* Antarctic Antarctica McMurdo Dry Valleys |
genre_facet |
Antarc* Antarctic Antarctica McMurdo Dry Valleys |
op_source |
Life; Volume 10; Issue 2; Pages: 13 |
op_relation |
Origin of Life https://dx.doi.org/10.3390/life10020013 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/life10020013 |
container_title |
Life |
container_volume |
10 |
container_issue |
2 |
container_start_page |
13 |
_version_ |
1774716673452933120 |