Antarctic Cryptoendolithic Fungal Communities Are Highly Adapted and Dominated by Lecanoromycetes and Dothideomycetes
Endolithic growth is one of the most spectacular microbial adaptations to extreme environmental constraints and the predominant life-form in the ice-free areas of Continental Antarctica. Although Antarctic endolithic microbial communities are known to host among the most resistant and extreme-adapte...
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ftdoajarticles:oai:doaj.org/article:f75bdb204c8c4f29a0ca4b530062211c 2023-05-15T14:05:04+02:00 Antarctic Cryptoendolithic Fungal Communities Are Highly Adapted and Dominated by Lecanoromycetes and Dothideomycetes Claudia Coleine Jason E. Stajich Laura Zucconi Silvano Onofri Nuttapon Pombubpa Eleonora Egidi Ashley Franks Pietro Buzzini Laura Selbmann 2018-06-01T00:00:00Z https://doi.org/10.3389/fmicb.2018.01392 https://doaj.org/article/f75bdb204c8c4f29a0ca4b530062211c EN eng Frontiers Media S.A. https://www.frontiersin.org/article/10.3389/fmicb.2018.01392/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2018.01392 https://doaj.org/article/f75bdb204c8c4f29a0ca4b530062211c Frontiers in Microbiology, Vol 9 (2018) Antarctica endolithic communities extremophiles fungi ITS meta-barcoding Microbiology QR1-502 article 2018 ftdoajarticles https://doi.org/10.3389/fmicb.2018.01392 2022-12-31T05:20:18Z Endolithic growth is one of the most spectacular microbial adaptations to extreme environmental constraints and the predominant life-form in the ice-free areas of Continental Antarctica. Although Antarctic endolithic microbial communities are known to host among the most resistant and extreme-adapted organisms, our knowledge on microbial diversity and composition in this peculiar niche is still limited. In this study, we investigated the diversity and structure of the fungal assemblage in the cryptoendolithic communities inhabiting sandstone using a meta-barcoding approach targeting the fungal Internal Transcribed Sequence region 1 (ITS1). Samples were collected from 14 sites in the Victoria Land, along an altitudinal gradient ranging from 1,000 to 3,300 m a.s.l. and from 29 to 96 km distance to coast. Our study revealed a clear dominance of a ‘core’ group of fungal taxa consistently present across all the samples, mainly composed of lichen-forming and Dothideomycetous fungi. Pareto-Lorenz curves indicated a very high degree of specialization (F0 approximately 95%), suggesting these communities are highly adapted but have limited ability to recover after perturbations. Overall, both fungal community biodiversity and composition did not show any correlation with the considered abiotic parameters, potentially due to strong fluctuations of environmental conditions at local scales. Article in Journal/Newspaper Antarc* Antarctic Antarctica Victoria Land Directory of Open Access Journals: DOAJ Articles Antarctic Victoria Land Frontiers in Microbiology 9 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctica endolithic communities extremophiles fungi ITS meta-barcoding Microbiology QR1-502 |
spellingShingle |
Antarctica endolithic communities extremophiles fungi ITS meta-barcoding Microbiology QR1-502 Claudia Coleine Jason E. Stajich Laura Zucconi Silvano Onofri Nuttapon Pombubpa Eleonora Egidi Ashley Franks Pietro Buzzini Laura Selbmann Antarctic Cryptoendolithic Fungal Communities Are Highly Adapted and Dominated by Lecanoromycetes and Dothideomycetes |
topic_facet |
Antarctica endolithic communities extremophiles fungi ITS meta-barcoding Microbiology QR1-502 |
description |
Endolithic growth is one of the most spectacular microbial adaptations to extreme environmental constraints and the predominant life-form in the ice-free areas of Continental Antarctica. Although Antarctic endolithic microbial communities are known to host among the most resistant and extreme-adapted organisms, our knowledge on microbial diversity and composition in this peculiar niche is still limited. In this study, we investigated the diversity and structure of the fungal assemblage in the cryptoendolithic communities inhabiting sandstone using a meta-barcoding approach targeting the fungal Internal Transcribed Sequence region 1 (ITS1). Samples were collected from 14 sites in the Victoria Land, along an altitudinal gradient ranging from 1,000 to 3,300 m a.s.l. and from 29 to 96 km distance to coast. Our study revealed a clear dominance of a ‘core’ group of fungal taxa consistently present across all the samples, mainly composed of lichen-forming and Dothideomycetous fungi. Pareto-Lorenz curves indicated a very high degree of specialization (F0 approximately 95%), suggesting these communities are highly adapted but have limited ability to recover after perturbations. Overall, both fungal community biodiversity and composition did not show any correlation with the considered abiotic parameters, potentially due to strong fluctuations of environmental conditions at local scales. |
format |
Article in Journal/Newspaper |
author |
Claudia Coleine Jason E. Stajich Laura Zucconi Silvano Onofri Nuttapon Pombubpa Eleonora Egidi Ashley Franks Pietro Buzzini Laura Selbmann |
author_facet |
Claudia Coleine Jason E. Stajich Laura Zucconi Silvano Onofri Nuttapon Pombubpa Eleonora Egidi Ashley Franks Pietro Buzzini Laura Selbmann |
author_sort |
Claudia Coleine |
title |
Antarctic Cryptoendolithic Fungal Communities Are Highly Adapted and Dominated by Lecanoromycetes and Dothideomycetes |
title_short |
Antarctic Cryptoendolithic Fungal Communities Are Highly Adapted and Dominated by Lecanoromycetes and Dothideomycetes |
title_full |
Antarctic Cryptoendolithic Fungal Communities Are Highly Adapted and Dominated by Lecanoromycetes and Dothideomycetes |
title_fullStr |
Antarctic Cryptoendolithic Fungal Communities Are Highly Adapted and Dominated by Lecanoromycetes and Dothideomycetes |
title_full_unstemmed |
Antarctic Cryptoendolithic Fungal Communities Are Highly Adapted and Dominated by Lecanoromycetes and Dothideomycetes |
title_sort |
antarctic cryptoendolithic fungal communities are highly adapted and dominated by lecanoromycetes and dothideomycetes |
publisher |
Frontiers Media S.A. |
publishDate |
2018 |
url |
https://doi.org/10.3389/fmicb.2018.01392 https://doaj.org/article/f75bdb204c8c4f29a0ca4b530062211c |
geographic |
Antarctic Victoria Land |
geographic_facet |
Antarctic Victoria Land |
genre |
Antarc* Antarctic Antarctica Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Victoria Land |
op_source |
Frontiers in Microbiology, Vol 9 (2018) |
op_relation |
https://www.frontiersin.org/article/10.3389/fmicb.2018.01392/full https://doaj.org/toc/1664-302X 1664-302X doi:10.3389/fmicb.2018.01392 https://doaj.org/article/f75bdb204c8c4f29a0ca4b530062211c |
op_doi |
https://doi.org/10.3389/fmicb.2018.01392 |
container_title |
Frontiers in Microbiology |
container_volume |
9 |
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1766276711431798784 |