Morphological and Physiological Effects in Proboscia Alata (Bacillariophyceae)Grown under Different Light and CO 2 Conditions of the Modern Southern Ocean
The combined effects of different light and aqueous CO2 conditions were assessed for the Southern Ocean diatom Proboscia alata (Brightwell) Sundstrom in laboratory experiments. Selected culture conditions (light and CO2(aq)) were representative for the natural ranges in the modern Southern Ocean. Li...
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ftnioz:oai:imis.nioz.nl:231065 2023-05-15T18:24:26+02:00 Morphological and Physiological Effects in Proboscia Alata (Bacillariophyceae)Grown under Different Light and CO 2 Conditions of the Modern Southern Ocean Hoogstraten, A. Timmermans, K.R. de Baar, H.J.W. 2012 http://imis.nioz.nl/imis.php?module=ref&refid=231065 en eng info:eu-repo/semantics/altIdentifier/wos/000304810200007 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1111/j.1529-8817.2012.01148.x http://imis.nioz.nl/imis.php?module=ref&refid=231065 info:eu-repo/semantics/closedAccess %3Ci%3EJ.+Phycol.+48%283%29%3C%2Fi%3E%3A+559-568.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1111%2Fj.1529-8817.2012.01148.x%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1111%2Fj.1529-8817.2012.01148.x%3C%2Fa%3E Proboscia alata info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2012 ftnioz https://doi.org/10.1111/j.1529-8817.2012.01148.x 2022-05-01T13:57:16Z The combined effects of different light and aqueous CO2 conditions were assessed for the Southern Ocean diatom Proboscia alata (Brightwell) Sundstrom in laboratory experiments. Selected culture conditions (light and CO2(aq)) were representative for the natural ranges in the modern Southern Ocean. Light conditions were 40 (low) and 240 (high) mu mol photons . m-2 . s-1. The three CO2(aq) conditions ranged from 8 to 34 mu mol . kg-1 CO2(aq) (equivalent to a pCO2 from 137 to 598 mu atm, respectively). Clear morphological changes were induced by these different CO2(aq) conditions. Cells in low [CO2(aq)] formed spirals, while many cells in high [CO2(aq)] disintegrated. Cell size and volume were significantly affected by the different CO2(aq) concentrations. Increasing CO2(aq) concentrations led to an increase in particulate organic carbon concentrations per cell in the high light cultures, with exactly the opposite happening in the low light cultures. However, other parameters measured were not influenced by the range of CO2(aq) treatments. This included growth rates, chlorophyll a concentration and photosynthetic yield (FV/FM). Different light treatments had a large effect on nutrient uptake. High light conditions caused an increased nutrient uptake rate compared to cells grown in low light conditions. Light and CO2 conditions co-determined in various ways the response of P. alata to changing environmental conditions. Overall P. alata appeared to be well adapted to the natural variability in light availability and CO2(aq) concentration of the modern Southern Ocean. Nevertheless, our results showed that P. alata is susceptible to future changes in inorganic carbon concentrations in the Southern Ocean. Article in Journal/Newspaper Southern Ocean NIOZ Repository (Royal Netherlands Institute for Sea Research) Southern Ocean Journal of Phycology 48 3 559 568 |
institution |
Open Polar |
collection |
NIOZ Repository (Royal Netherlands Institute for Sea Research) |
op_collection_id |
ftnioz |
language |
English |
topic |
Proboscia alata |
spellingShingle |
Proboscia alata Hoogstraten, A. Timmermans, K.R. de Baar, H.J.W. Morphological and Physiological Effects in Proboscia Alata (Bacillariophyceae)Grown under Different Light and CO 2 Conditions of the Modern Southern Ocean |
topic_facet |
Proboscia alata |
description |
The combined effects of different light and aqueous CO2 conditions were assessed for the Southern Ocean diatom Proboscia alata (Brightwell) Sundstrom in laboratory experiments. Selected culture conditions (light and CO2(aq)) were representative for the natural ranges in the modern Southern Ocean. Light conditions were 40 (low) and 240 (high) mu mol photons . m-2 . s-1. The three CO2(aq) conditions ranged from 8 to 34 mu mol . kg-1 CO2(aq) (equivalent to a pCO2 from 137 to 598 mu atm, respectively). Clear morphological changes were induced by these different CO2(aq) conditions. Cells in low [CO2(aq)] formed spirals, while many cells in high [CO2(aq)] disintegrated. Cell size and volume were significantly affected by the different CO2(aq) concentrations. Increasing CO2(aq) concentrations led to an increase in particulate organic carbon concentrations per cell in the high light cultures, with exactly the opposite happening in the low light cultures. However, other parameters measured were not influenced by the range of CO2(aq) treatments. This included growth rates, chlorophyll a concentration and photosynthetic yield (FV/FM). Different light treatments had a large effect on nutrient uptake. High light conditions caused an increased nutrient uptake rate compared to cells grown in low light conditions. Light and CO2 conditions co-determined in various ways the response of P. alata to changing environmental conditions. Overall P. alata appeared to be well adapted to the natural variability in light availability and CO2(aq) concentration of the modern Southern Ocean. Nevertheless, our results showed that P. alata is susceptible to future changes in inorganic carbon concentrations in the Southern Ocean. |
format |
Article in Journal/Newspaper |
author |
Hoogstraten, A. Timmermans, K.R. de Baar, H.J.W. |
author_facet |
Hoogstraten, A. Timmermans, K.R. de Baar, H.J.W. |
author_sort |
Hoogstraten, A. |
title |
Morphological and Physiological Effects in Proboscia Alata (Bacillariophyceae)Grown under Different Light and CO 2 Conditions of the Modern Southern Ocean |
title_short |
Morphological and Physiological Effects in Proboscia Alata (Bacillariophyceae)Grown under Different Light and CO 2 Conditions of the Modern Southern Ocean |
title_full |
Morphological and Physiological Effects in Proboscia Alata (Bacillariophyceae)Grown under Different Light and CO 2 Conditions of the Modern Southern Ocean |
title_fullStr |
Morphological and Physiological Effects in Proboscia Alata (Bacillariophyceae)Grown under Different Light and CO 2 Conditions of the Modern Southern Ocean |
title_full_unstemmed |
Morphological and Physiological Effects in Proboscia Alata (Bacillariophyceae)Grown under Different Light and CO 2 Conditions of the Modern Southern Ocean |
title_sort |
morphological and physiological effects in proboscia alata (bacillariophyceae)grown under different light and co 2 conditions of the modern southern ocean |
publishDate |
2012 |
url |
http://imis.nioz.nl/imis.php?module=ref&refid=231065 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
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op_relation |
info:eu-repo/semantics/altIdentifier/wos/000304810200007 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1111/j.1529-8817.2012.01148.x http://imis.nioz.nl/imis.php?module=ref&refid=231065 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1111/j.1529-8817.2012.01148.x |
container_title |
Journal of Phycology |
container_volume |
48 |
container_issue |
3 |
container_start_page |
559 |
op_container_end_page |
568 |
_version_ |
1766204927801032704 |