The Distribution and Identity of Edaphic Fungi in the McMurdo Dry Valleys
Contrary to earlier assumptions, molecular evidence has demonstrated the presence of diverse and localized soil bacterial communities in the McMurdo Dry Valleys of Antarctica. Meanwhile, it remains unclear whether fungal signals so far detected in Dry Valley soils using both culture-based and molecu...
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ftdoajarticles:oai:doaj.org/article:38c6b39397c947f495db4dd9601f935a 2023-10-01T03:51:12+02:00 The Distribution and Identity of Edaphic Fungi in the McMurdo Dry Valleys Lisa L. Dreesens Charles K. Lee S. Craig Cary 2014-07-01T00:00:00Z https://doi.org/10.3390/biology3030466 https://doaj.org/article/38c6b39397c947f495db4dd9601f935a EN eng MDPI AG http://www.mdpi.com/2079-7737/3/3/466 https://doaj.org/toc/2079-7737 2079-7737 doi:10.3390/biology3030466 https://doaj.org/article/38c6b39397c947f495db4dd9601f935a Biology, Vol 3, Iss 3, Pp 466-483 (2014) Antarctica fungi Dry Valleys soil biogeography microbial ecology Biology (General) QH301-705.5 article 2014 ftdoajarticles https://doi.org/10.3390/biology3030466 2023-09-03T00:43:43Z Contrary to earlier assumptions, molecular evidence has demonstrated the presence of diverse and localized soil bacterial communities in the McMurdo Dry Valleys of Antarctica. Meanwhile, it remains unclear whether fungal signals so far detected in Dry Valley soils using both culture-based and molecular techniques represent adapted and ecologically active biomass or spores transported by wind. Through a systematic and quantitative molecular survey, we identified significant heterogeneities in soil fungal communities across the Dry Valleys that robustly correlate with heterogeneities in soil physicochemical properties. Community fingerprinting analysis and 454 pyrosequencing of the fungal ribosomal intergenic spacer region revealed different levels of heterogeneity in fungal diversity within individual Dry Valleys and a surprising abundance of Chytridiomycota species, whereas previous studies suggested that Dry Valley soils were dominated by Ascomycota and Basidiomycota. Critically, we identified significant differences in fungal community composition and structure of adjacent sites with no obvious barrier to aeolian transport between them. These findings suggest that edaphic fungi of the Antarctic Dry Valleys are adapted to local environments and represent an ecologically relevant (and possibly important) heterotrophic component of the ecosystem. Article in Journal/Newspaper Antarc* Antarctic Antarctica McMurdo Dry Valleys Directory of Open Access Journals: DOAJ Articles Antarctic The Antarctic McMurdo Dry Valleys Biology 3 3 466 483 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctica fungi Dry Valleys soil biogeography microbial ecology Biology (General) QH301-705.5 |
spellingShingle |
Antarctica fungi Dry Valleys soil biogeography microbial ecology Biology (General) QH301-705.5 Lisa L. Dreesens Charles K. Lee S. Craig Cary The Distribution and Identity of Edaphic Fungi in the McMurdo Dry Valleys |
topic_facet |
Antarctica fungi Dry Valleys soil biogeography microbial ecology Biology (General) QH301-705.5 |
description |
Contrary to earlier assumptions, molecular evidence has demonstrated the presence of diverse and localized soil bacterial communities in the McMurdo Dry Valleys of Antarctica. Meanwhile, it remains unclear whether fungal signals so far detected in Dry Valley soils using both culture-based and molecular techniques represent adapted and ecologically active biomass or spores transported by wind. Through a systematic and quantitative molecular survey, we identified significant heterogeneities in soil fungal communities across the Dry Valleys that robustly correlate with heterogeneities in soil physicochemical properties. Community fingerprinting analysis and 454 pyrosequencing of the fungal ribosomal intergenic spacer region revealed different levels of heterogeneity in fungal diversity within individual Dry Valleys and a surprising abundance of Chytridiomycota species, whereas previous studies suggested that Dry Valley soils were dominated by Ascomycota and Basidiomycota. Critically, we identified significant differences in fungal community composition and structure of adjacent sites with no obvious barrier to aeolian transport between them. These findings suggest that edaphic fungi of the Antarctic Dry Valleys are adapted to local environments and represent an ecologically relevant (and possibly important) heterotrophic component of the ecosystem. |
format |
Article in Journal/Newspaper |
author |
Lisa L. Dreesens Charles K. Lee S. Craig Cary |
author_facet |
Lisa L. Dreesens Charles K. Lee S. Craig Cary |
author_sort |
Lisa L. Dreesens |
title |
The Distribution and Identity of Edaphic Fungi in the McMurdo Dry Valleys |
title_short |
The Distribution and Identity of Edaphic Fungi in the McMurdo Dry Valleys |
title_full |
The Distribution and Identity of Edaphic Fungi in the McMurdo Dry Valleys |
title_fullStr |
The Distribution and Identity of Edaphic Fungi in the McMurdo Dry Valleys |
title_full_unstemmed |
The Distribution and Identity of Edaphic Fungi in the McMurdo Dry Valleys |
title_sort |
distribution and identity of edaphic fungi in the mcmurdo dry valleys |
publisher |
MDPI AG |
publishDate |
2014 |
url |
https://doi.org/10.3390/biology3030466 https://doaj.org/article/38c6b39397c947f495db4dd9601f935a |
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 |
Biology, Vol 3, Iss 3, Pp 466-483 (2014) |
op_relation |
http://www.mdpi.com/2079-7737/3/3/466 https://doaj.org/toc/2079-7737 2079-7737 doi:10.3390/biology3030466 https://doaj.org/article/38c6b39397c947f495db4dd9601f935a |
op_doi |
https://doi.org/10.3390/biology3030466 |
container_title |
Biology |
container_volume |
3 |
container_issue |
3 |
container_start_page |
466 |
op_container_end_page |
483 |
_version_ |
1778533013328494592 |