PHOTOSYNTHESIS AND CELL DIVISION BY ANTARCTIC MICROALGAE: COMPARISON OF BENTHIC, PLANKTONIC AND ICE ALGAE 1
ABSTRACT Irradiance‐dependent rates of photosynthesis and cell division of six species of microalgae isolated from the benthos, plankton and sea ice microbial community in McMurdo Sound, Antarctica were compared. Microalgae isolated from different photic environments had distinct photosynthetic and...
Published in: | Journal of Phycology |
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Language: | English |
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Wiley
1987
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Online Access: | http://dx.doi.org/10.1111/j.1529-8817.1987.tb04129.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1529-8817.1987.tb04129.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1529-8817.1987.tb04129.x |
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crwiley:10.1111/j.1529-8817.1987.tb04129.x 2024-09-15T17:42:58+00:00 PHOTOSYNTHESIS AND CELL DIVISION BY ANTARCTIC MICROALGAE: COMPARISON OF BENTHIC, PLANKTONIC AND ICE ALGAE 1 Rivkin, Richard B. Putt, Mary 1987 http://dx.doi.org/10.1111/j.1529-8817.1987.tb04129.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1529-8817.1987.tb04129.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1529-8817.1987.tb04129.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Phycology volume 23, issue s2, page 223-229 ISSN 0022-3646 1529-8817 journal-article 1987 crwiley https://doi.org/10.1111/j.1529-8817.1987.tb04129.x 2024-07-30T04:22:10Z ABSTRACT Irradiance‐dependent rates of photosynthesis and cell division of six species of microalgae isolated from the benthos, plankton and sea ice microbial community in McMurdo Sound, Antarctica were compared. Microalgae isolated from different photic environments had distinct photosynthetic and growth characteristics. For benthic and ice algae, photosynthesis saturated at 6 to 20 μE.m −2 .s −1 and was photoinhibited at 10 to 80 μE.m −2 .s −1 while for the planktonic algae, saturation irradiances were up to 13 times higher and photoinhibition was not detected. The slope of the light‐limited portion of the P‐I relationship was up to 50 times greater for the benthic algae than for either the ice or planktonic algae suggesting that benthic algae used the low irradiances more efficiently for carbon uptake. Cell division was dependent on the incubation irradiance for all but one microalga examined. The dependence of division rates on irradiance was however much smaller than for carbon uptake, suggesting that cell division buffers the influence of short term variations of irradiance on cellular metabolism. Article in Journal/Newspaper Antarc* Antarctic Antarctica ice algae McMurdo Sound Sea ice Wiley Online Library Journal of Phycology 23 s2 223 229 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
ABSTRACT Irradiance‐dependent rates of photosynthesis and cell division of six species of microalgae isolated from the benthos, plankton and sea ice microbial community in McMurdo Sound, Antarctica were compared. Microalgae isolated from different photic environments had distinct photosynthetic and growth characteristics. For benthic and ice algae, photosynthesis saturated at 6 to 20 μE.m −2 .s −1 and was photoinhibited at 10 to 80 μE.m −2 .s −1 while for the planktonic algae, saturation irradiances were up to 13 times higher and photoinhibition was not detected. The slope of the light‐limited portion of the P‐I relationship was up to 50 times greater for the benthic algae than for either the ice or planktonic algae suggesting that benthic algae used the low irradiances more efficiently for carbon uptake. Cell division was dependent on the incubation irradiance for all but one microalga examined. The dependence of division rates on irradiance was however much smaller than for carbon uptake, suggesting that cell division buffers the influence of short term variations of irradiance on cellular metabolism. |
format |
Article in Journal/Newspaper |
author |
Rivkin, Richard B. Putt, Mary |
spellingShingle |
Rivkin, Richard B. Putt, Mary PHOTOSYNTHESIS AND CELL DIVISION BY ANTARCTIC MICROALGAE: COMPARISON OF BENTHIC, PLANKTONIC AND ICE ALGAE 1 |
author_facet |
Rivkin, Richard B. Putt, Mary |
author_sort |
Rivkin, Richard B. |
title |
PHOTOSYNTHESIS AND CELL DIVISION BY ANTARCTIC MICROALGAE: COMPARISON OF BENTHIC, PLANKTONIC AND ICE ALGAE 1 |
title_short |
PHOTOSYNTHESIS AND CELL DIVISION BY ANTARCTIC MICROALGAE: COMPARISON OF BENTHIC, PLANKTONIC AND ICE ALGAE 1 |
title_full |
PHOTOSYNTHESIS AND CELL DIVISION BY ANTARCTIC MICROALGAE: COMPARISON OF BENTHIC, PLANKTONIC AND ICE ALGAE 1 |
title_fullStr |
PHOTOSYNTHESIS AND CELL DIVISION BY ANTARCTIC MICROALGAE: COMPARISON OF BENTHIC, PLANKTONIC AND ICE ALGAE 1 |
title_full_unstemmed |
PHOTOSYNTHESIS AND CELL DIVISION BY ANTARCTIC MICROALGAE: COMPARISON OF BENTHIC, PLANKTONIC AND ICE ALGAE 1 |
title_sort |
photosynthesis and cell division by antarctic microalgae: comparison of benthic, planktonic and ice algae 1 |
publisher |
Wiley |
publishDate |
1987 |
url |
http://dx.doi.org/10.1111/j.1529-8817.1987.tb04129.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1529-8817.1987.tb04129.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1529-8817.1987.tb04129.x |
genre |
Antarc* Antarctic Antarctica ice algae McMurdo Sound Sea ice |
genre_facet |
Antarc* Antarctic Antarctica ice algae McMurdo Sound Sea ice |
op_source |
Journal of Phycology volume 23, issue s2, page 223-229 ISSN 0022-3646 1529-8817 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1529-8817.1987.tb04129.x |
container_title |
Journal of Phycology |
container_volume |
23 |
container_issue |
s2 |
container_start_page |
223 |
op_container_end_page |
229 |
_version_ |
1810489792451837952 |