Phenotypic plasticity of southern ocean diatoms: Key to success in the sea ice habitat?
Diatoms are the primary source of nutrition and energy for the Southern Ocean ecosystem. Microalgae, including diatoms, synthesise biological macromolecules such as lipids, proteins and carbohydrates for growth, reproduction and acclimation to prevailing environmental conditions. Here we show that t...
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ftunivtsydney:oai:opus.lib.uts.edu.au:10453/35538 2023-05-15T18:17:20+02:00 Phenotypic plasticity of southern ocean diatoms: Key to success in the sea ice habitat? Sackett, O Petrou, K Reedy, B De Grazia, A Hill, R Doblin, M Beardall, J Ralph, P Heraud, P 2013-11-21 application/pdf http://hdl.handle.net/10453/35538 unknown PLoS ONE 10.1371/journal.pone.0081185 PLoS ONE, 2013, 8 (11) http://hdl.handle.net/10453/35538 General Science & Technology Diatoms Ecosystem Seasons Phenotype Journal Article 2013 ftunivtsydney 2022-03-13T13:17:32Z Diatoms are the primary source of nutrition and energy for the Southern Ocean ecosystem. Microalgae, including diatoms, synthesise biological macromolecules such as lipids, proteins and carbohydrates for growth, reproduction and acclimation to prevailing environmental conditions. Here we show that three key species of Southern Ocean diatom (Fragilariopsis cylindrus, Chaetoceros simplex and Pseudo-nitzschia subcurvata) exhibited phenotypic plasticity in response to salinity and temperature regimes experienced during the seasonal formation and decay of sea ice. The degree of phenotypic plasticity, in terms of changes in macromolecular composition, was highly species-specific and consistent with each species' known distribution and abundance throughout sea ice, meltwater and pelagic habitats, suggesting that phenotypic plasticity may have been selected for by the extreme variability of the polar marine environment. We argue that changes in diatom macromolecular composition and shifts in species dominance in response to a changing climate have the potential to alter nutrient and energy fluxes throughout the Southern Ocean ecosystem. © 2013 Sackett et al. Article in Journal/Newspaper Sea ice Southern Ocean University of Technology Sydney: OPUS - Open Publications of UTS Scholars Southern Ocean |
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Open Polar |
collection |
University of Technology Sydney: OPUS - Open Publications of UTS Scholars |
op_collection_id |
ftunivtsydney |
language |
unknown |
topic |
General Science & Technology Diatoms Ecosystem Seasons Phenotype |
spellingShingle |
General Science & Technology Diatoms Ecosystem Seasons Phenotype Sackett, O Petrou, K Reedy, B De Grazia, A Hill, R Doblin, M Beardall, J Ralph, P Heraud, P Phenotypic plasticity of southern ocean diatoms: Key to success in the sea ice habitat? |
topic_facet |
General Science & Technology Diatoms Ecosystem Seasons Phenotype |
description |
Diatoms are the primary source of nutrition and energy for the Southern Ocean ecosystem. Microalgae, including diatoms, synthesise biological macromolecules such as lipids, proteins and carbohydrates for growth, reproduction and acclimation to prevailing environmental conditions. Here we show that three key species of Southern Ocean diatom (Fragilariopsis cylindrus, Chaetoceros simplex and Pseudo-nitzschia subcurvata) exhibited phenotypic plasticity in response to salinity and temperature regimes experienced during the seasonal formation and decay of sea ice. The degree of phenotypic plasticity, in terms of changes in macromolecular composition, was highly species-specific and consistent with each species' known distribution and abundance throughout sea ice, meltwater and pelagic habitats, suggesting that phenotypic plasticity may have been selected for by the extreme variability of the polar marine environment. We argue that changes in diatom macromolecular composition and shifts in species dominance in response to a changing climate have the potential to alter nutrient and energy fluxes throughout the Southern Ocean ecosystem. © 2013 Sackett et al. |
format |
Article in Journal/Newspaper |
author |
Sackett, O Petrou, K Reedy, B De Grazia, A Hill, R Doblin, M Beardall, J Ralph, P Heraud, P |
author_facet |
Sackett, O Petrou, K Reedy, B De Grazia, A Hill, R Doblin, M Beardall, J Ralph, P Heraud, P |
author_sort |
Sackett, O |
title |
Phenotypic plasticity of southern ocean diatoms: Key to success in the sea ice habitat? |
title_short |
Phenotypic plasticity of southern ocean diatoms: Key to success in the sea ice habitat? |
title_full |
Phenotypic plasticity of southern ocean diatoms: Key to success in the sea ice habitat? |
title_fullStr |
Phenotypic plasticity of southern ocean diatoms: Key to success in the sea ice habitat? |
title_full_unstemmed |
Phenotypic plasticity of southern ocean diatoms: Key to success in the sea ice habitat? |
title_sort |
phenotypic plasticity of southern ocean diatoms: key to success in the sea ice habitat? |
publishDate |
2013 |
url |
http://hdl.handle.net/10453/35538 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Sea ice Southern Ocean |
genre_facet |
Sea ice Southern Ocean |
op_relation |
PLoS ONE 10.1371/journal.pone.0081185 PLoS ONE, 2013, 8 (11) http://hdl.handle.net/10453/35538 |
_version_ |
1766191483880210432 |