Photoadaptations of photosynthesis and carbon metabolism by phytoplankton from McMurdo Sound, Antarctica. 1. Species‐specific and community responses to reduced irradiances12
Irradiance‐dependent rates of photosynthesis and photosynthate labeling patterns were measured for phytoplankton in McMurdo Sound, Antarctica. Species‐specific and traditional whole‐water techniques were used to compare the physiological responses of algae collected in a high light environment at th...
Published in: | Limnology and Oceanography |
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Language: | English |
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Wiley
1987
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Online Access: | http://dx.doi.org/10.4319/lo.1987.32.1.0249 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.1987.32.1.0249 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.1987.32.1.0249 |
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crwiley:10.4319/lo.1987.32.1.0249 2024-03-31T07:48:42+00:00 Photoadaptations of photosynthesis and carbon metabolism by phytoplankton from McMurdo Sound, Antarctica. 1. Species‐specific and community responses to reduced irradiances12 Rivkin, Richard B. Voytek, Mary A. 1987 http://dx.doi.org/10.4319/lo.1987.32.1.0249 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.1987.32.1.0249 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.1987.32.1.0249 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 32, issue 1, page 249-259 ISSN 0024-3590 1939-5590 Aquatic Science Oceanography journal-article 1987 crwiley https://doi.org/10.4319/lo.1987.32.1.0249 2024-03-04T13:03:01Z Irradiance‐dependent rates of photosynthesis and photosynthate labeling patterns were measured for phytoplankton in McMurdo Sound, Antarctica. Species‐specific and traditional whole‐water techniques were used to compare the physiological responses of algae collected in a high light environment at the ice edge and from a low light environment under the annual sea ice. There were differences among species within the same sample, for the same species isolated from high and low light environments, and when species‐specific responses were compared with that of the natural assemblage. For algae collected beneath the sea ice, photosynthesis generally saturated at a lower irradiance, and the light‐limited region of the P vs. I relationship had a steeper slope than for the same species collected at the ice edge. Low‐light‐adapted algae incorporated significantly less 14 C into proteins and more into low molecular weight compounds and lipids than the same species isolated from a high light environment. Under conditions where reduced rates of protein synthesis were coupled with high rates of carbon uptake, the measurement of photosynthesis may not accurately reflect the physiological condition of the phytoplankton. Article in Journal/Newspaper Antarc* Antarctica McMurdo Sound Sea ice Wiley Online Library McMurdo Sound Limnology and Oceanography 32 1 249 259 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Oceanography |
spellingShingle |
Aquatic Science Oceanography Rivkin, Richard B. Voytek, Mary A. Photoadaptations of photosynthesis and carbon metabolism by phytoplankton from McMurdo Sound, Antarctica. 1. Species‐specific and community responses to reduced irradiances12 |
topic_facet |
Aquatic Science Oceanography |
description |
Irradiance‐dependent rates of photosynthesis and photosynthate labeling patterns were measured for phytoplankton in McMurdo Sound, Antarctica. Species‐specific and traditional whole‐water techniques were used to compare the physiological responses of algae collected in a high light environment at the ice edge and from a low light environment under the annual sea ice. There were differences among species within the same sample, for the same species isolated from high and low light environments, and when species‐specific responses were compared with that of the natural assemblage. For algae collected beneath the sea ice, photosynthesis generally saturated at a lower irradiance, and the light‐limited region of the P vs. I relationship had a steeper slope than for the same species collected at the ice edge. Low‐light‐adapted algae incorporated significantly less 14 C into proteins and more into low molecular weight compounds and lipids than the same species isolated from a high light environment. Under conditions where reduced rates of protein synthesis were coupled with high rates of carbon uptake, the measurement of photosynthesis may not accurately reflect the physiological condition of the phytoplankton. |
format |
Article in Journal/Newspaper |
author |
Rivkin, Richard B. Voytek, Mary A. |
author_facet |
Rivkin, Richard B. Voytek, Mary A. |
author_sort |
Rivkin, Richard B. |
title |
Photoadaptations of photosynthesis and carbon metabolism by phytoplankton from McMurdo Sound, Antarctica. 1. Species‐specific and community responses to reduced irradiances12 |
title_short |
Photoadaptations of photosynthesis and carbon metabolism by phytoplankton from McMurdo Sound, Antarctica. 1. Species‐specific and community responses to reduced irradiances12 |
title_full |
Photoadaptations of photosynthesis and carbon metabolism by phytoplankton from McMurdo Sound, Antarctica. 1. Species‐specific and community responses to reduced irradiances12 |
title_fullStr |
Photoadaptations of photosynthesis and carbon metabolism by phytoplankton from McMurdo Sound, Antarctica. 1. Species‐specific and community responses to reduced irradiances12 |
title_full_unstemmed |
Photoadaptations of photosynthesis and carbon metabolism by phytoplankton from McMurdo Sound, Antarctica. 1. Species‐specific and community responses to reduced irradiances12 |
title_sort |
photoadaptations of photosynthesis and carbon metabolism by phytoplankton from mcmurdo sound, antarctica. 1. species‐specific and community responses to reduced irradiances12 |
publisher |
Wiley |
publishDate |
1987 |
url |
http://dx.doi.org/10.4319/lo.1987.32.1.0249 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.1987.32.1.0249 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.1987.32.1.0249 |
geographic |
McMurdo Sound |
geographic_facet |
McMurdo Sound |
genre |
Antarc* Antarctica McMurdo Sound Sea ice |
genre_facet |
Antarc* Antarctica McMurdo Sound Sea ice |
op_source |
Limnology and Oceanography volume 32, issue 1, page 249-259 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.4319/lo.1987.32.1.0249 |
container_title |
Limnology and Oceanography |
container_volume |
32 |
container_issue |
1 |
container_start_page |
249 |
op_container_end_page |
259 |
_version_ |
1795034386381406208 |