Basidiomycetous Yeast, Glaciozyma antarctica, Forming Frost-Columnar Colonies on Frozen Medium
The basidiomycetous yeast, Glaciozyma antarctica, was isolated from various terrestrial materials collected from the Sôya coast, East Antarctica, and formed frost-columnar colonies on agar plates frozen at −1 °C. Thawed colonies were highly viscous, indicating that the yeast produced a large number...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8398550/ http://www.ncbi.nlm.nih.gov/pubmed/34442759 https://doi.org/10.3390/microorganisms9081679 |
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ftpubmed:oai:pubmedcentral.nih.gov:8398550 2023-05-15T13:57:19+02:00 Basidiomycetous Yeast, Glaciozyma antarctica, Forming Frost-Columnar Colonies on Frozen Medium Fujiu, Seiichi Ito, Masanobu Kobayashi, Eriko Hanada, Yuichi Yoshida, Midori Kudoh, Sakae Hoshino, Tamotsu 2021-08-07 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8398550/ http://www.ncbi.nlm.nih.gov/pubmed/34442759 https://doi.org/10.3390/microorganisms9081679 en eng MDPI http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8398550/ http://www.ncbi.nlm.nih.gov/pubmed/34442759 http://dx.doi.org/10.3390/microorganisms9081679 © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). CC-BY Microorganisms Article Text 2021 ftpubmed https://doi.org/10.3390/microorganisms9081679 2021-09-05T00:52:34Z The basidiomycetous yeast, Glaciozyma antarctica, was isolated from various terrestrial materials collected from the Sôya coast, East Antarctica, and formed frost-columnar colonies on agar plates frozen at −1 °C. Thawed colonies were highly viscous, indicating that the yeast produced a large number of extracellular polysaccharides (EPS). G. antarctica was then cultured on frozen media containing red food coloring to observe the dynamics of solutes in unfrozen water; pigments accumulated in frozen yeast colonies, indicating that solutes were concentrated in unfrozen water of yeast colonies. Moreover, the yeast produced a small quantity of ice-binding proteins (IBPs) which inhibited ice crystal growth. Solutes in unfrozen water were considered to accumulate in the pore of frozen colonies. The extracellular IBPs may have held an unfrozen state of medium water after accumulation in the frost-columnar colony. Text Antarc* Antarctica East Antarctica PubMed Central (PMC) East Antarctica Sôya Coast ENVELOPE(39.750,39.750,-69.300,-69.300) Microorganisms 9 8 1679 |
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Article Fujiu, Seiichi Ito, Masanobu Kobayashi, Eriko Hanada, Yuichi Yoshida, Midori Kudoh, Sakae Hoshino, Tamotsu Basidiomycetous Yeast, Glaciozyma antarctica, Forming Frost-Columnar Colonies on Frozen Medium |
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description |
The basidiomycetous yeast, Glaciozyma antarctica, was isolated from various terrestrial materials collected from the Sôya coast, East Antarctica, and formed frost-columnar colonies on agar plates frozen at −1 °C. Thawed colonies were highly viscous, indicating that the yeast produced a large number of extracellular polysaccharides (EPS). G. antarctica was then cultured on frozen media containing red food coloring to observe the dynamics of solutes in unfrozen water; pigments accumulated in frozen yeast colonies, indicating that solutes were concentrated in unfrozen water of yeast colonies. Moreover, the yeast produced a small quantity of ice-binding proteins (IBPs) which inhibited ice crystal growth. Solutes in unfrozen water were considered to accumulate in the pore of frozen colonies. The extracellular IBPs may have held an unfrozen state of medium water after accumulation in the frost-columnar colony. |
format |
Text |
author |
Fujiu, Seiichi Ito, Masanobu Kobayashi, Eriko Hanada, Yuichi Yoshida, Midori Kudoh, Sakae Hoshino, Tamotsu |
author_facet |
Fujiu, Seiichi Ito, Masanobu Kobayashi, Eriko Hanada, Yuichi Yoshida, Midori Kudoh, Sakae Hoshino, Tamotsu |
author_sort |
Fujiu, Seiichi |
title |
Basidiomycetous Yeast, Glaciozyma antarctica, Forming Frost-Columnar Colonies on Frozen Medium |
title_short |
Basidiomycetous Yeast, Glaciozyma antarctica, Forming Frost-Columnar Colonies on Frozen Medium |
title_full |
Basidiomycetous Yeast, Glaciozyma antarctica, Forming Frost-Columnar Colonies on Frozen Medium |
title_fullStr |
Basidiomycetous Yeast, Glaciozyma antarctica, Forming Frost-Columnar Colonies on Frozen Medium |
title_full_unstemmed |
Basidiomycetous Yeast, Glaciozyma antarctica, Forming Frost-Columnar Colonies on Frozen Medium |
title_sort |
basidiomycetous yeast, glaciozyma antarctica, forming frost-columnar colonies on frozen medium |
publisher |
MDPI |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8398550/ http://www.ncbi.nlm.nih.gov/pubmed/34442759 https://doi.org/10.3390/microorganisms9081679 |
long_lat |
ENVELOPE(39.750,39.750,-69.300,-69.300) |
geographic |
East Antarctica Sôya Coast |
geographic_facet |
East Antarctica Sôya Coast |
genre |
Antarc* Antarctica East Antarctica |
genre_facet |
Antarc* Antarctica East Antarctica |
op_source |
Microorganisms |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8398550/ http://www.ncbi.nlm.nih.gov/pubmed/34442759 http://dx.doi.org/10.3390/microorganisms9081679 |
op_rights |
© 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/). |
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CC-BY |
op_doi |
https://doi.org/10.3390/microorganisms9081679 |
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Microorganisms |
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9 |
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8 |
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1679 |
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1766264927892275200 |