Acclimation of brown algal photosynthesis to ultraviolet radiation in Arctic coastal waters (Spitsbergen, Norway)
In field studies conducted at the Kongsfjord (Spitsbergen) changes of the irradiance in the atmosphere and the sublittoral zone were monitored from the beginning of June until the end of August 1997, to register the minimum and maximum fluxes of ultraviolet and photosynthetically active radiation an...
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Language: | English |
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1998
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Online Access: | https://pure.knaw.nl/portal/en/publications/0292b337-a0f8-47ea-949e-9a68fdb15f51 https://doi.org/10.1007/s003000050319 https://hdl.handle.net/20.500.11755/0292b337-a0f8-47ea-949e-9a68fdb15f51 |
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ftknawnlpublic:oai:pure.knaw.nl:publications/0292b337-a0f8-47ea-949e-9a68fdb15f51 2024-09-15T17:50:51+00:00 Acclimation of brown algal photosynthesis to ultraviolet radiation in Arctic coastal waters (Spitsbergen, Norway) Bischof, K. Hanelt, D. Tug, H. Karsten, U. Brouwer, P.E.M. Wiencke, C. 1998 https://pure.knaw.nl/portal/en/publications/0292b337-a0f8-47ea-949e-9a68fdb15f51 https://doi.org/10.1007/s003000050319 https://hdl.handle.net/20.500.11755/0292b337-a0f8-47ea-949e-9a68fdb15f51 eng eng https://pure.knaw.nl/portal/en/publications/0292b337-a0f8-47ea-949e-9a68fdb15f51 info:eu-repo/semantics/closedAccess Bischof , K , Hanelt , D , Tug , H , Karsten , U , Brouwer , P E M & Wiencke , C 1998 , ' Acclimation of brown algal photosynthesis to ultraviolet radiation in Arctic coastal waters (Spitsbergen, Norway) ' , Polar Biology , vol. 20 , no. 6 , pp. 388-395 . https://doi.org/10.1007/s003000050319 article 1998 ftknawnlpublic https://doi.org/10.1007/s00300005031920.500.11755/0292b337-a0f8-47ea-949e-9a68fdb15f51 2024-07-22T23:43:53Z In field studies conducted at the Kongsfjord (Spitsbergen) changes of the irradiance in the atmosphere and the sublittoral zone were monitored from the beginning of June until the end of August 1997, to register the minimum and maximum fluxes of ultraviolet and photosynthetically active radiation and to characterise the underwater light climate. Measurements of photosynthesis in three abundant brown algal species (Alaria esculenta, Laminaria saccharina, Saccorhiza dermatodea) were conducted to test whether their photosynthetic performance reflects changing light climate in accordance with depth. Plants sampled at various depths were exposed to controlled fluence rates of photosynthetically active radiation (400-700 nm), W-A (320-400 nm) and UV-B (280-320 nm). Changes in photosynthetic performance during the treatments were monitored by measuring variable chlorophyll fluorescence of photosystem II. In each species, the degree of inhibition of photosynthesis was related to the original collection depth, i.e. shallow- water isolates were more resistant than plants from deeper waters. The results show that macroalgae acclimate effectively to increasing irradiance levels for both photosynthetically active and ultraviolet radiation. However, the kinetics of acclimation are different within the different species. It is shown that one important strategy to cope with higher irradiance levels in shallow waters is the capability for a faster recovery from high light stress compared to isolates from deeper waters. [KEYWORDS: Uv-b radiation; life-history stages; high light stress chlorophyll fluorescence; dictyota-dichotoma; marine macroalgae; photosystem-ii; photoinhibition; field; displacements] In field studies conducted at the Kongsfjord (Spitsbergen) changes of the irradiance in the atmosphere and the sublittoral zone were monitored from the beginning of June until the end of August 1997, to register the minimum and maximum fluxes of ultraviolet and photosynthetically active radiation and to characterise the ... Article in Journal/Newspaper Arctic Kongsfjord* Polar Biology Spitsbergen Royal Netherlands Academy of Arts and Sciences Research Portal (KNAW) Polar Biology 20 6 388 395 |
institution |
Open Polar |
collection |
Royal Netherlands Academy of Arts and Sciences Research Portal (KNAW) |
op_collection_id |
ftknawnlpublic |
language |
English |
description |
In field studies conducted at the Kongsfjord (Spitsbergen) changes of the irradiance in the atmosphere and the sublittoral zone were monitored from the beginning of June until the end of August 1997, to register the minimum and maximum fluxes of ultraviolet and photosynthetically active radiation and to characterise the underwater light climate. Measurements of photosynthesis in three abundant brown algal species (Alaria esculenta, Laminaria saccharina, Saccorhiza dermatodea) were conducted to test whether their photosynthetic performance reflects changing light climate in accordance with depth. Plants sampled at various depths were exposed to controlled fluence rates of photosynthetically active radiation (400-700 nm), W-A (320-400 nm) and UV-B (280-320 nm). Changes in photosynthetic performance during the treatments were monitored by measuring variable chlorophyll fluorescence of photosystem II. In each species, the degree of inhibition of photosynthesis was related to the original collection depth, i.e. shallow- water isolates were more resistant than plants from deeper waters. The results show that macroalgae acclimate effectively to increasing irradiance levels for both photosynthetically active and ultraviolet radiation. However, the kinetics of acclimation are different within the different species. It is shown that one important strategy to cope with higher irradiance levels in shallow waters is the capability for a faster recovery from high light stress compared to isolates from deeper waters. [KEYWORDS: Uv-b radiation; life-history stages; high light stress chlorophyll fluorescence; dictyota-dichotoma; marine macroalgae; photosystem-ii; photoinhibition; field; displacements] In field studies conducted at the Kongsfjord (Spitsbergen) changes of the irradiance in the atmosphere and the sublittoral zone were monitored from the beginning of June until the end of August 1997, to register the minimum and maximum fluxes of ultraviolet and photosynthetically active radiation and to characterise the ... |
format |
Article in Journal/Newspaper |
author |
Bischof, K. Hanelt, D. Tug, H. Karsten, U. Brouwer, P.E.M. Wiencke, C. |
spellingShingle |
Bischof, K. Hanelt, D. Tug, H. Karsten, U. Brouwer, P.E.M. Wiencke, C. Acclimation of brown algal photosynthesis to ultraviolet radiation in Arctic coastal waters (Spitsbergen, Norway) |
author_facet |
Bischof, K. Hanelt, D. Tug, H. Karsten, U. Brouwer, P.E.M. Wiencke, C. |
author_sort |
Bischof, K. |
title |
Acclimation of brown algal photosynthesis to ultraviolet radiation in Arctic coastal waters (Spitsbergen, Norway) |
title_short |
Acclimation of brown algal photosynthesis to ultraviolet radiation in Arctic coastal waters (Spitsbergen, Norway) |
title_full |
Acclimation of brown algal photosynthesis to ultraviolet radiation in Arctic coastal waters (Spitsbergen, Norway) |
title_fullStr |
Acclimation of brown algal photosynthesis to ultraviolet radiation in Arctic coastal waters (Spitsbergen, Norway) |
title_full_unstemmed |
Acclimation of brown algal photosynthesis to ultraviolet radiation in Arctic coastal waters (Spitsbergen, Norway) |
title_sort |
acclimation of brown algal photosynthesis to ultraviolet radiation in arctic coastal waters (spitsbergen, norway) |
publishDate |
1998 |
url |
https://pure.knaw.nl/portal/en/publications/0292b337-a0f8-47ea-949e-9a68fdb15f51 https://doi.org/10.1007/s003000050319 https://hdl.handle.net/20.500.11755/0292b337-a0f8-47ea-949e-9a68fdb15f51 |
genre |
Arctic Kongsfjord* Polar Biology Spitsbergen |
genre_facet |
Arctic Kongsfjord* Polar Biology Spitsbergen |
op_source |
Bischof , K , Hanelt , D , Tug , H , Karsten , U , Brouwer , P E M & Wiencke , C 1998 , ' Acclimation of brown algal photosynthesis to ultraviolet radiation in Arctic coastal waters (Spitsbergen, Norway) ' , Polar Biology , vol. 20 , no. 6 , pp. 388-395 . https://doi.org/10.1007/s003000050319 |
op_relation |
https://pure.knaw.nl/portal/en/publications/0292b337-a0f8-47ea-949e-9a68fdb15f51 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/s00300005031920.500.11755/0292b337-a0f8-47ea-949e-9a68fdb15f51 |
container_title |
Polar Biology |
container_volume |
20 |
container_issue |
6 |
container_start_page |
388 |
op_container_end_page |
395 |
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1810292663501455360 |