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Sun Exposure Shapes Functional Grouping of Fungi in Cryptoendolithic Antarctic Communities
Antarctic cryptoendolithic microbial communities dominate ice-free areas of continental Antarctica, among the harshest environments on Earth. The endolithic lifestyle is a remarkable adaptation to the exceptional environmental extremes of this area, which is considered the closest terrestrial exampl...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6027399/ https://www.ncbi.nlm.nih.gov/pubmed/29865244 http://dx.doi.org/10.3390/life8020019 |
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author | Coleine, Claudia Zucconi, Laura Onofri, Silvano Pombubpa, Nuttapon Stajich, Jason E. Selbmann, Laura |
author_facet | Coleine, Claudia Zucconi, Laura Onofri, Silvano Pombubpa, Nuttapon Stajich, Jason E. Selbmann, Laura |
author_sort | Coleine, Claudia |
collection | PubMed |
description | Antarctic cryptoendolithic microbial communities dominate ice-free areas of continental Antarctica, among the harshest environments on Earth. The endolithic lifestyle is a remarkable adaptation to the exceptional environmental extremes of this area, which is considered the closest terrestrial example to conditions on Mars. Recent efforts have attempted to elucidate composition of these extremely adapted communities, but the functionality of these microbes have remained unexplored. We have tested for interactions between measured environmental characteristics, fungal community membership, and inferred functional classification of the fungi present and found altitude and sun exposure were primary factors. Sandstone rocks were collected in Victoria Land, Antarctica along an altitudinal gradient from 834 to 3100 m a.s.l.; differently sun-exposed rocks were selected to test the influence of this parameter on endolithic settlement. Metabarcoding targeting the fungal internal transcribed spacer region 1 (ITS1) was used to catalogue the species found in these communities. Functional profile of guilds found in the samples was associated to species using FUNGuild and variation in functional groups compared across sunlight exposure and altitude. Results revealed clear dominance of lichenized and stress-tolerant fungi in endolithic communities. The main variations in composition and abundance of functional groups among sites correlated to sun exposure, but not to altitude. |
format | Online Article Text |
id | pubmed-6027399 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-60273992018-07-13 Sun Exposure Shapes Functional Grouping of Fungi in Cryptoendolithic Antarctic Communities Coleine, Claudia Zucconi, Laura Onofri, Silvano Pombubpa, Nuttapon Stajich, Jason E. Selbmann, Laura Life (Basel) Article Antarctic cryptoendolithic microbial communities dominate ice-free areas of continental Antarctica, among the harshest environments on Earth. The endolithic lifestyle is a remarkable adaptation to the exceptional environmental extremes of this area, which is considered the closest terrestrial example to conditions on Mars. Recent efforts have attempted to elucidate composition of these extremely adapted communities, but the functionality of these microbes have remained unexplored. We have tested for interactions between measured environmental characteristics, fungal community membership, and inferred functional classification of the fungi present and found altitude and sun exposure were primary factors. Sandstone rocks were collected in Victoria Land, Antarctica along an altitudinal gradient from 834 to 3100 m a.s.l.; differently sun-exposed rocks were selected to test the influence of this parameter on endolithic settlement. Metabarcoding targeting the fungal internal transcribed spacer region 1 (ITS1) was used to catalogue the species found in these communities. Functional profile of guilds found in the samples was associated to species using FUNGuild and variation in functional groups compared across sunlight exposure and altitude. Results revealed clear dominance of lichenized and stress-tolerant fungi in endolithic communities. The main variations in composition and abundance of functional groups among sites correlated to sun exposure, but not to altitude. MDPI 2018-06-02 /pmc/articles/PMC6027399/ /pubmed/29865244 http://dx.doi.org/10.3390/life8020019 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Coleine, Claudia Zucconi, Laura Onofri, Silvano Pombubpa, Nuttapon Stajich, Jason E. Selbmann, Laura Sun Exposure Shapes Functional Grouping of Fungi in Cryptoendolithic Antarctic Communities |
title | Sun Exposure Shapes Functional Grouping of Fungi in Cryptoendolithic Antarctic Communities |
title_full | Sun Exposure Shapes Functional Grouping of Fungi in Cryptoendolithic Antarctic Communities |
title_fullStr | Sun Exposure Shapes Functional Grouping of Fungi in Cryptoendolithic Antarctic Communities |
title_full_unstemmed | Sun Exposure Shapes Functional Grouping of Fungi in Cryptoendolithic Antarctic Communities |
title_short | Sun Exposure Shapes Functional Grouping of Fungi in Cryptoendolithic Antarctic Communities |
title_sort | sun exposure shapes functional grouping of fungi in cryptoendolithic antarctic communities |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6027399/ https://www.ncbi.nlm.nih.gov/pubmed/29865244 http://dx.doi.org/10.3390/life8020019 |
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