Profiles of soluble carbohydrates and their adaptive role in maritime Antarctic terrestrial arthropods
The existence of seasonal changes in concentrations of water-soluble carbohydrates in arthropods (both freezing-tolerant and intolerant species) from Signy Island was demonstrated. Seasonal patterns of variation, imposed by seasonality of the maritime Antarctic environment, in the production of solu...
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Online Access: | http://nora.nerc.ac.uk/id/eprint/504202/ https://doi.org/10.1007/s003000050242 |
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ftnerc:oai:nora.nerc.ac.uk:504202 2023-05-15T13:09:54+02:00 Profiles of soluble carbohydrates and their adaptive role in maritime Antarctic terrestrial arthropods Montiel, P. O. 1998 http://nora.nerc.ac.uk/id/eprint/504202/ https://doi.org/10.1007/s003000050242 unknown Springer Montiel, P. O. 1998 Profiles of soluble carbohydrates and their adaptive role in maritime Antarctic terrestrial arthropods. Polar Biology, 19 (4). 250-256. https://doi.org/10.1007/s003000050242 <https://doi.org/10.1007/s003000050242> Publication - Article PeerReviewed 1998 ftnerc https://doi.org/10.1007/s003000050242 2023-02-04T19:38:19Z The existence of seasonal changes in concentrations of water-soluble carbohydrates in arthropods (both freezing-tolerant and intolerant species) from Signy Island was demonstrated. Seasonal patterns of variation, imposed by seasonality of the maritime Antarctic environment, in the production of soluble carbohydrates in response to low temperatures and/or dehydration for a range of terrestrial arthropods were confirmed. The freshwater copepod Pseudoboeckellapoppei exhibited much lower levels of soluble carbohydrates, with glycerol as the main component, and smaller seasonal fluctuations relative to the four terrestrial species. The two Antarctic mites (Alaskozetes antarcticus and Gamasellus racovitzai) accumulated glycerol (as a single-component cryoprotective system), in agreement with previous work reporting increased glycerol levels and lowering of the supercooling point in A. antarcticus. In the case of G. racovitzai, increased levels of glycerol may function in a different manner. The larval dipteran Eretmoptera murphyi and the collembolan Cryptopygus antarcticus have complex multi-component cryoprotective systems involving trehalose that may be related to low temperature acclimation and dehydration. These findings are discussed in relation to published work on single and multiple cryoprotective systems, supercooling points and the involvement of dehydration as a complementary stress in overwintering insects. Article in Journal/Newspaper Alaskozetes antarcticus Antarc* Antarctic antarcticus Cryptopygus antarcticus Polar Biology Signy Island Natural Environment Research Council: NERC Open Research Archive Antarctic Signy Island ENVELOPE(-45.595,-45.595,-60.708,-60.708) Polar Biology 19 4 250 256 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
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description |
The existence of seasonal changes in concentrations of water-soluble carbohydrates in arthropods (both freezing-tolerant and intolerant species) from Signy Island was demonstrated. Seasonal patterns of variation, imposed by seasonality of the maritime Antarctic environment, in the production of soluble carbohydrates in response to low temperatures and/or dehydration for a range of terrestrial arthropods were confirmed. The freshwater copepod Pseudoboeckellapoppei exhibited much lower levels of soluble carbohydrates, with glycerol as the main component, and smaller seasonal fluctuations relative to the four terrestrial species. The two Antarctic mites (Alaskozetes antarcticus and Gamasellus racovitzai) accumulated glycerol (as a single-component cryoprotective system), in agreement with previous work reporting increased glycerol levels and lowering of the supercooling point in A. antarcticus. In the case of G. racovitzai, increased levels of glycerol may function in a different manner. The larval dipteran Eretmoptera murphyi and the collembolan Cryptopygus antarcticus have complex multi-component cryoprotective systems involving trehalose that may be related to low temperature acclimation and dehydration. These findings are discussed in relation to published work on single and multiple cryoprotective systems, supercooling points and the involvement of dehydration as a complementary stress in overwintering insects. |
format |
Article in Journal/Newspaper |
author |
Montiel, P. O. |
spellingShingle |
Montiel, P. O. Profiles of soluble carbohydrates and their adaptive role in maritime Antarctic terrestrial arthropods |
author_facet |
Montiel, P. O. |
author_sort |
Montiel, P. O. |
title |
Profiles of soluble carbohydrates and their adaptive role in maritime Antarctic terrestrial arthropods |
title_short |
Profiles of soluble carbohydrates and their adaptive role in maritime Antarctic terrestrial arthropods |
title_full |
Profiles of soluble carbohydrates and their adaptive role in maritime Antarctic terrestrial arthropods |
title_fullStr |
Profiles of soluble carbohydrates and their adaptive role in maritime Antarctic terrestrial arthropods |
title_full_unstemmed |
Profiles of soluble carbohydrates and their adaptive role in maritime Antarctic terrestrial arthropods |
title_sort |
profiles of soluble carbohydrates and their adaptive role in maritime antarctic terrestrial arthropods |
publisher |
Springer |
publishDate |
1998 |
url |
http://nora.nerc.ac.uk/id/eprint/504202/ https://doi.org/10.1007/s003000050242 |
long_lat |
ENVELOPE(-45.595,-45.595,-60.708,-60.708) |
geographic |
Antarctic Signy Island |
geographic_facet |
Antarctic Signy Island |
genre |
Alaskozetes antarcticus Antarc* Antarctic antarcticus Cryptopygus antarcticus Polar Biology Signy Island |
genre_facet |
Alaskozetes antarcticus Antarc* Antarctic antarcticus Cryptopygus antarcticus Polar Biology Signy Island |
op_relation |
Montiel, P. O. 1998 Profiles of soluble carbohydrates and their adaptive role in maritime Antarctic terrestrial arthropods. Polar Biology, 19 (4). 250-256. https://doi.org/10.1007/s003000050242 <https://doi.org/10.1007/s003000050242> |
op_doi |
https://doi.org/10.1007/s003000050242 |
container_title |
Polar Biology |
container_volume |
19 |
container_issue |
4 |
container_start_page |
250 |
op_container_end_page |
256 |
_version_ |
1766203877469716480 |