Morphological and physiological effects in proboscia alata (bacillariophyceae) grown under different light and CO2 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...
Published in: | Journal of Phycology |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2012
|
Subjects: | |
Online Access: | https://hdl.handle.net/11370/700b64c3-a002-4091-8289-922c6514f3ed https://research.rug.nl/en/publications/700b64c3-a002-4091-8289-922c6514f3ed https://doi.org/10.1111/j.1529-8817.2012.01148.x |
id |
ftunigroningenpu:oai:pure.rug.nl:publications/700b64c3-a002-4091-8289-922c6514f3ed |
---|---|
record_format |
openpolar |
spelling |
ftunigroningenpu:oai:pure.rug.nl:publications/700b64c3-a002-4091-8289-922c6514f3ed 2024-09-09T19:08:59+00:00 Morphological and physiological effects in proboscia alata (bacillariophyceae) grown under different light and CO2 conditions of the modern Southern ocean Hoogstraten, Astrid Timmermans, Klaas R. de Baar, Hein J. W. 2012-06 https://hdl.handle.net/11370/700b64c3-a002-4091-8289-922c6514f3ed https://research.rug.nl/en/publications/700b64c3-a002-4091-8289-922c6514f3ed https://doi.org/10.1111/j.1529-8817.2012.01148.x eng eng https://research.rug.nl/en/publications/700b64c3-a002-4091-8289-922c6514f3ed info:eu-repo/semantics/closedAccess Hoogstraten , A , Timmermans , K R & de Baar , H J W 2012 , ' Morphological and physiological effects in proboscia alata (bacillariophyceae) grown under different light and CO2 conditions of the modern Southern ocean ' , Journal of Phycology , vol. 48 , no. 3 , pp. 559-568 . https://doi.org/10.1111/j.1529-8817.2012.01148.x Proboscia alata culture experiments irradiance physiology aqueous CO2 dissolved inorganic carbon total alkalinity PHYTOPLANKTON GROWTH CARBONIC-ACID SEA-ICE IRON WATER DISSOCIATION ANTARCTICA SEAWATER PHOTOINHIBITION LIMITATION article 2012 ftunigroningenpu https://doi.org/10.1111/j.1529-8817.2012.01148.x 2024-06-17T15:56:51Z 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 Antarc* Antarctica Carbonic acid Sea ice Southern Ocean University of Groningen research database Southern Ocean Journal of Phycology 48 3 559 568 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
Proboscia alata culture experiments irradiance physiology aqueous CO2 dissolved inorganic carbon total alkalinity PHYTOPLANKTON GROWTH CARBONIC-ACID SEA-ICE IRON WATER DISSOCIATION ANTARCTICA SEAWATER PHOTOINHIBITION LIMITATION |
spellingShingle |
Proboscia alata culture experiments irradiance physiology aqueous CO2 dissolved inorganic carbon total alkalinity PHYTOPLANKTON GROWTH CARBONIC-ACID SEA-ICE IRON WATER DISSOCIATION ANTARCTICA SEAWATER PHOTOINHIBITION LIMITATION Hoogstraten, Astrid Timmermans, Klaas R. de Baar, Hein J. W. Morphological and physiological effects in proboscia alata (bacillariophyceae) grown under different light and CO2 conditions of the modern Southern ocean |
topic_facet |
Proboscia alata culture experiments irradiance physiology aqueous CO2 dissolved inorganic carbon total alkalinity PHYTOPLANKTON GROWTH CARBONIC-ACID SEA-ICE IRON WATER DISSOCIATION ANTARCTICA SEAWATER PHOTOINHIBITION LIMITATION |
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, Astrid Timmermans, Klaas R. de Baar, Hein J. W. |
author_facet |
Hoogstraten, Astrid Timmermans, Klaas R. de Baar, Hein J. W. |
author_sort |
Hoogstraten, Astrid |
title |
Morphological and physiological effects in proboscia alata (bacillariophyceae) grown under different light and CO2 conditions of the modern Southern ocean |
title_short |
Morphological and physiological effects in proboscia alata (bacillariophyceae) grown under different light and CO2 conditions of the modern Southern ocean |
title_full |
Morphological and physiological effects in proboscia alata (bacillariophyceae) grown under different light and CO2 conditions of the modern Southern ocean |
title_fullStr |
Morphological and physiological effects in proboscia alata (bacillariophyceae) grown under different light and CO2 conditions of the modern Southern ocean |
title_full_unstemmed |
Morphological and physiological effects in proboscia alata (bacillariophyceae) grown under different light and CO2 conditions of the modern Southern ocean |
title_sort |
morphological and physiological effects in proboscia alata (bacillariophyceae) grown under different light and co2 conditions of the modern southern ocean |
publishDate |
2012 |
url |
https://hdl.handle.net/11370/700b64c3-a002-4091-8289-922c6514f3ed https://research.rug.nl/en/publications/700b64c3-a002-4091-8289-922c6514f3ed https://doi.org/10.1111/j.1529-8817.2012.01148.x |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Antarc* Antarctica Carbonic acid Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctica Carbonic acid Sea ice Southern Ocean |
op_source |
Hoogstraten , A , Timmermans , K R & de Baar , H J W 2012 , ' Morphological and physiological effects in proboscia alata (bacillariophyceae) grown under different light and CO2 conditions of the modern Southern ocean ' , Journal of Phycology , vol. 48 , no. 3 , pp. 559-568 . https://doi.org/10.1111/j.1529-8817.2012.01148.x |
op_relation |
https://research.rug.nl/en/publications/700b64c3-a002-4091-8289-922c6514f3ed |
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_ |
1809823278532919296 |