The first cultivation of the glacier ice alga Ancylonema alaskanum (Zygnematophyceae, Streptophyta): differences in morphology and photophysiology of field vs laboratory strain cells
Melting glacier surfaces are unique ecosystems for specialized microbes, frequently harbouring blooms of microalgae with pigments contributing to the darkening of ice surfaces, reducing albedo and enhancing melt rates. The main cause of this phenomenon is algae of the genus Ancylonema. Prior investi...
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Cambridge University Press
2023
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Online Access: | https://doi.org/10.1017/jog.2023.22 https://doaj.org/article/f1e43fdce1c34704ad24979355eee20d |
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ftdoajarticles:oai:doaj.org/article:f1e43fdce1c34704ad24979355eee20d 2023-08-20T04:07:38+02:00 The first cultivation of the glacier ice alga Ancylonema alaskanum (Zygnematophyceae, Streptophyta): differences in morphology and photophysiology of field vs laboratory strain cells Daniel Remias Lenka Procházková 2023-08-01T00:00:00Z https://doi.org/10.1017/jog.2023.22 https://doaj.org/article/f1e43fdce1c34704ad24979355eee20d EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143023000229/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2023.22 0022-1430 1727-5652 https://doaj.org/article/f1e43fdce1c34704ad24979355eee20d Journal of Glaciology, Vol 69, Pp 1080-1084 (2023) Melt – surface microbiology polar biology Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2023 ftdoajarticles https://doi.org/10.1017/jog.2023.22 2023-07-30T00:36:44Z Melting glacier surfaces are unique ecosystems for specialized microbes, frequently harbouring blooms of microalgae with pigments contributing to the darkening of ice surfaces, reducing albedo and enhancing melt rates. The main cause of this phenomenon is algae of the genus Ancylonema. Prior investigation depended on field-collected material because these algae resisted cultivation. To enhance research on how these algae dominate melting ice, we established a strain of Ancylonema alaskanum from an alpine glacier and exposed to temperatures around the freezing point at irradiations of ~10% of full sunlight. The morphology of the culture changed, with the cells becoming longer and turning green by losing their brownish pigmentation, indicating that these dark phenols are crucial for survival in the cryosphere. Photophysiological comparisons of strain and glacial material showed adaptation of the photosynthetic apparatus to prevailing conditions. This laboratorial strain opens possibilities for a wide range of comparative ‘omics’ research. Article in Journal/Newspaper Journal of Glaciology Directory of Open Access Journals: DOAJ Articles Journal of Glaciology 69 276 1080 1084 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Melt – surface microbiology polar biology Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
Melt – surface microbiology polar biology Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Daniel Remias Lenka Procházková The first cultivation of the glacier ice alga Ancylonema alaskanum (Zygnematophyceae, Streptophyta): differences in morphology and photophysiology of field vs laboratory strain cells |
topic_facet |
Melt – surface microbiology polar biology Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
Melting glacier surfaces are unique ecosystems for specialized microbes, frequently harbouring blooms of microalgae with pigments contributing to the darkening of ice surfaces, reducing albedo and enhancing melt rates. The main cause of this phenomenon is algae of the genus Ancylonema. Prior investigation depended on field-collected material because these algae resisted cultivation. To enhance research on how these algae dominate melting ice, we established a strain of Ancylonema alaskanum from an alpine glacier and exposed to temperatures around the freezing point at irradiations of ~10% of full sunlight. The morphology of the culture changed, with the cells becoming longer and turning green by losing their brownish pigmentation, indicating that these dark phenols are crucial for survival in the cryosphere. Photophysiological comparisons of strain and glacial material showed adaptation of the photosynthetic apparatus to prevailing conditions. This laboratorial strain opens possibilities for a wide range of comparative ‘omics’ research. |
format |
Article in Journal/Newspaper |
author |
Daniel Remias Lenka Procházková |
author_facet |
Daniel Remias Lenka Procházková |
author_sort |
Daniel Remias |
title |
The first cultivation of the glacier ice alga Ancylonema alaskanum (Zygnematophyceae, Streptophyta): differences in morphology and photophysiology of field vs laboratory strain cells |
title_short |
The first cultivation of the glacier ice alga Ancylonema alaskanum (Zygnematophyceae, Streptophyta): differences in morphology and photophysiology of field vs laboratory strain cells |
title_full |
The first cultivation of the glacier ice alga Ancylonema alaskanum (Zygnematophyceae, Streptophyta): differences in morphology and photophysiology of field vs laboratory strain cells |
title_fullStr |
The first cultivation of the glacier ice alga Ancylonema alaskanum (Zygnematophyceae, Streptophyta): differences in morphology and photophysiology of field vs laboratory strain cells |
title_full_unstemmed |
The first cultivation of the glacier ice alga Ancylonema alaskanum (Zygnematophyceae, Streptophyta): differences in morphology and photophysiology of field vs laboratory strain cells |
title_sort |
first cultivation of the glacier ice alga ancylonema alaskanum (zygnematophyceae, streptophyta): differences in morphology and photophysiology of field vs laboratory strain cells |
publisher |
Cambridge University Press |
publishDate |
2023 |
url |
https://doi.org/10.1017/jog.2023.22 https://doaj.org/article/f1e43fdce1c34704ad24979355eee20d |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology, Vol 69, Pp 1080-1084 (2023) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143023000229/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2023.22 0022-1430 1727-5652 https://doaj.org/article/f1e43fdce1c34704ad24979355eee20d |
op_doi |
https://doi.org/10.1017/jog.2023.22 |
container_title |
Journal of Glaciology |
container_volume |
69 |
container_issue |
276 |
container_start_page |
1080 |
op_container_end_page |
1084 |
_version_ |
1774719416564449280 |