Influence of growth temperature on lipid and soluble carbohydrate synthesis by fungi isolated from fellfield soil in the maritime Antarctic
The effects of growth temperature on soluble carbohydrate and lipid content of Humicola marvinii, Geomyces pannorum and Mortierella elongata isolated from the Antarctic (Signy Island; 60° 43′S, 45°38′W) were investigated. Each of these fungi responded differently to suboptimal growth temperatures. A...
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The Mycological Society of America
2000
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Online Access: | http://nora.nerc.ac.uk/id/eprint/502601/ https://doi.org/10.2307/3761554 |
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ftnerc:oai:nora.nerc.ac.uk:502601 2023-05-15T13:48:07+02:00 Influence of growth temperature on lipid and soluble carbohydrate synthesis by fungi isolated from fellfield soil in the maritime Antarctic Weinstein, Richard N. Montiel, Pedro O. Johnstone, Keith 2000 http://nora.nerc.ac.uk/id/eprint/502601/ https://doi.org/10.2307/3761554 unknown The Mycological Society of America Weinstein, Richard N.; Montiel, Pedro O.; Johnstone, Keith. 2000 Influence of growth temperature on lipid and soluble carbohydrate synthesis by fungi isolated from fellfield soil in the maritime Antarctic. Mycologia, 92 (2). 222-229. https://doi.org/10.2307/3761554 <https://doi.org/10.2307/3761554> Publication - Article PeerReviewed 2000 ftnerc https://doi.org/10.2307/3761554 2023-02-04T19:37:21Z The effects of growth temperature on soluble carbohydrate and lipid content of Humicola marvinii, Geomyces pannorum and Mortierella elongata isolated from the Antarctic (Signy Island; 60° 43′S, 45°38′W) were investigated. Each of these fungi responded differently to suboptimal growth temperatures. At low temperatures Humicola marvinii accumulated cryoprotective carbohydrates (trehalose intracellularly and glycerol extracellularly), whereas Geomyces pannorum responded by altering its lipid composition with increases in unsaturated lipid content and overall unsaturation index. In the case of Mortierella elongata, features that may influence its ability to grow at low temperatures included the absence of detectable ergosterol, the presence of stearidonic acid and increased amounts of intracellular trehalose when grown at lower temperatures. The relative importance of lipid and carbohydrate metabolism in adaptation to temperature stress in these fungi is discussed. Article in Journal/Newspaper Antarc* Antarctic Signy Island Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Signy Island ENVELOPE(-45.595,-45.595,-60.708,-60.708) Mycologia 92 2 222 |
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Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
language |
unknown |
description |
The effects of growth temperature on soluble carbohydrate and lipid content of Humicola marvinii, Geomyces pannorum and Mortierella elongata isolated from the Antarctic (Signy Island; 60° 43′S, 45°38′W) were investigated. Each of these fungi responded differently to suboptimal growth temperatures. At low temperatures Humicola marvinii accumulated cryoprotective carbohydrates (trehalose intracellularly and glycerol extracellularly), whereas Geomyces pannorum responded by altering its lipid composition with increases in unsaturated lipid content and overall unsaturation index. In the case of Mortierella elongata, features that may influence its ability to grow at low temperatures included the absence of detectable ergosterol, the presence of stearidonic acid and increased amounts of intracellular trehalose when grown at lower temperatures. The relative importance of lipid and carbohydrate metabolism in adaptation to temperature stress in these fungi is discussed. |
format |
Article in Journal/Newspaper |
author |
Weinstein, Richard N. Montiel, Pedro O. Johnstone, Keith |
spellingShingle |
Weinstein, Richard N. Montiel, Pedro O. Johnstone, Keith Influence of growth temperature on lipid and soluble carbohydrate synthesis by fungi isolated from fellfield soil in the maritime Antarctic |
author_facet |
Weinstein, Richard N. Montiel, Pedro O. Johnstone, Keith |
author_sort |
Weinstein, Richard N. |
title |
Influence of growth temperature on lipid and soluble carbohydrate synthesis by fungi isolated from fellfield soil in the maritime Antarctic |
title_short |
Influence of growth temperature on lipid and soluble carbohydrate synthesis by fungi isolated from fellfield soil in the maritime Antarctic |
title_full |
Influence of growth temperature on lipid and soluble carbohydrate synthesis by fungi isolated from fellfield soil in the maritime Antarctic |
title_fullStr |
Influence of growth temperature on lipid and soluble carbohydrate synthesis by fungi isolated from fellfield soil in the maritime Antarctic |
title_full_unstemmed |
Influence of growth temperature on lipid and soluble carbohydrate synthesis by fungi isolated from fellfield soil in the maritime Antarctic |
title_sort |
influence of growth temperature on lipid and soluble carbohydrate synthesis by fungi isolated from fellfield soil in the maritime antarctic |
publisher |
The Mycological Society of America |
publishDate |
2000 |
url |
http://nora.nerc.ac.uk/id/eprint/502601/ https://doi.org/10.2307/3761554 |
long_lat |
ENVELOPE(-45.595,-45.595,-60.708,-60.708) |
geographic |
Antarctic The Antarctic Signy Island |
geographic_facet |
Antarctic The Antarctic Signy Island |
genre |
Antarc* Antarctic Signy Island |
genre_facet |
Antarc* Antarctic Signy Island |
op_relation |
Weinstein, Richard N.; Montiel, Pedro O.; Johnstone, Keith. 2000 Influence of growth temperature on lipid and soluble carbohydrate synthesis by fungi isolated from fellfield soil in the maritime Antarctic. Mycologia, 92 (2). 222-229. https://doi.org/10.2307/3761554 <https://doi.org/10.2307/3761554> |
op_doi |
https://doi.org/10.2307/3761554 |
container_title |
Mycologia |
container_volume |
92 |
container_issue |
2 |
container_start_page |
222 |
_version_ |
1766248661201715200 |