Biodiversity and Abundance of Cultured Microfungi from the Permanently Ice-Covered Lake Fryxell, Antarctica
In this work, we explore the biodiversity of culturable microfungi from the water column of a permanently ice-covered lake in Taylor Valley, Antarctica from austral field seasons in 2003, 2008 and 2010, as well as from glacial stream input (2010). The results revealed that there was a sharp decline...
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ftdoajarticles:oai:doaj.org/article:de145ffe7b674d539ef0b3bf9952e3e8 2023-05-15T13:44:42+02:00 Biodiversity and Abundance of Cultured Microfungi from the Permanently Ice-Covered Lake Fryxell, Antarctica Laurie Connell Benjamin Segee Regina Redman Russell J. Rodriguez Hubert Staudigel 2018-09-01T00:00:00Z https://doi.org/10.3390/life8030037 https://doaj.org/article/de145ffe7b674d539ef0b3bf9952e3e8 EN eng MDPI AG http://www.mdpi.com/2075-1729/8/3/37 https://doaj.org/toc/2075-1729 2075-1729 doi:10.3390/life8030037 https://doaj.org/article/de145ffe7b674d539ef0b3bf9952e3e8 Life, Vol 8, Iss 3, p 37 (2018) Antarctic fungi Lake Fryxell permanently ice-covered lakes extreme habitats Science Q article 2018 ftdoajarticles https://doi.org/10.3390/life8030037 2022-12-30T20:02:59Z In this work, we explore the biodiversity of culturable microfungi from the water column of a permanently ice-covered lake in Taylor Valley, Antarctica from austral field seasons in 2003, 2008 and 2010, as well as from glacial stream input (2010). The results revealed that there was a sharp decline in total culturable fungal abundance between 9 and 11 m lake depth with a concurrent shift in diversity. A total of 29 species were identified from all three water sources with near even distribution between Ascomycota and Basidomycota (15 and 14 respectively). The most abundant taxa isolated from Lake Fryxell in 2008 were Glaciozyma watsonii (59%) followed by Penicillium spp. (10%), both of which were restricted to 9 m and above. Although seven species were found below the chemocline of 11 m in 2008, their abundance comprised only 10% of the total culturable fungi. The taxa of isolates collected from glacial source input streams had little overlap with those found in Lake Fryxell. The results highlight the spatial discontinuities of fungal populations that can occur within connected oligotrophic aquatic habitats. Article in Journal/Newspaper Antarc* Antarctic Antarctica Directory of Open Access Journals: DOAJ Articles Antarctic Austral Fryxell ENVELOPE(163.183,163.183,-77.617,-77.617) Lake Fryxell ENVELOPE(163.183,163.183,-77.617,-77.617) Taylor Valley ENVELOPE(163.000,163.000,-77.617,-77.617) Life 8 3 37 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctic fungi Lake Fryxell permanently ice-covered lakes extreme habitats Science Q |
spellingShingle |
Antarctic fungi Lake Fryxell permanently ice-covered lakes extreme habitats Science Q Laurie Connell Benjamin Segee Regina Redman Russell J. Rodriguez Hubert Staudigel Biodiversity and Abundance of Cultured Microfungi from the Permanently Ice-Covered Lake Fryxell, Antarctica |
topic_facet |
Antarctic fungi Lake Fryxell permanently ice-covered lakes extreme habitats Science Q |
description |
In this work, we explore the biodiversity of culturable microfungi from the water column of a permanently ice-covered lake in Taylor Valley, Antarctica from austral field seasons in 2003, 2008 and 2010, as well as from glacial stream input (2010). The results revealed that there was a sharp decline in total culturable fungal abundance between 9 and 11 m lake depth with a concurrent shift in diversity. A total of 29 species were identified from all three water sources with near even distribution between Ascomycota and Basidomycota (15 and 14 respectively). The most abundant taxa isolated from Lake Fryxell in 2008 were Glaciozyma watsonii (59%) followed by Penicillium spp. (10%), both of which were restricted to 9 m and above. Although seven species were found below the chemocline of 11 m in 2008, their abundance comprised only 10% of the total culturable fungi. The taxa of isolates collected from glacial source input streams had little overlap with those found in Lake Fryxell. The results highlight the spatial discontinuities of fungal populations that can occur within connected oligotrophic aquatic habitats. |
format |
Article in Journal/Newspaper |
author |
Laurie Connell Benjamin Segee Regina Redman Russell J. Rodriguez Hubert Staudigel |
author_facet |
Laurie Connell Benjamin Segee Regina Redman Russell J. Rodriguez Hubert Staudigel |
author_sort |
Laurie Connell |
title |
Biodiversity and Abundance of Cultured Microfungi from the Permanently Ice-Covered Lake Fryxell, Antarctica |
title_short |
Biodiversity and Abundance of Cultured Microfungi from the Permanently Ice-Covered Lake Fryxell, Antarctica |
title_full |
Biodiversity and Abundance of Cultured Microfungi from the Permanently Ice-Covered Lake Fryxell, Antarctica |
title_fullStr |
Biodiversity and Abundance of Cultured Microfungi from the Permanently Ice-Covered Lake Fryxell, Antarctica |
title_full_unstemmed |
Biodiversity and Abundance of Cultured Microfungi from the Permanently Ice-Covered Lake Fryxell, Antarctica |
title_sort |
biodiversity and abundance of cultured microfungi from the permanently ice-covered lake fryxell, antarctica |
publisher |
MDPI AG |
publishDate |
2018 |
url |
https://doi.org/10.3390/life8030037 https://doaj.org/article/de145ffe7b674d539ef0b3bf9952e3e8 |
long_lat |
ENVELOPE(163.183,163.183,-77.617,-77.617) ENVELOPE(163.183,163.183,-77.617,-77.617) ENVELOPE(163.000,163.000,-77.617,-77.617) |
geographic |
Antarctic Austral Fryxell Lake Fryxell Taylor Valley |
geographic_facet |
Antarctic Austral Fryxell Lake Fryxell Taylor Valley |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Life, Vol 8, Iss 3, p 37 (2018) |
op_relation |
http://www.mdpi.com/2075-1729/8/3/37 https://doaj.org/toc/2075-1729 2075-1729 doi:10.3390/life8030037 https://doaj.org/article/de145ffe7b674d539ef0b3bf9952e3e8 |
op_doi |
https://doi.org/10.3390/life8030037 |
container_title |
Life |
container_volume |
8 |
container_issue |
3 |
container_start_page |
37 |
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1766204980646117376 |