The effects of light and temperature on photosynthate partitioning in Antarctic freshwater phytoplankton
The effects of temperature and radiation flux on the partitioning of photosynthetically fixed carbon into four intracellulai metabolic pools was investigated for natural phytoplankton assemblages from an Antarctic freshwater lake. At ambient temperature, protein synthesis was saturated at low photon...
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Oxford University Press
1990
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fthighwire:oai:open-archive.highwire.org:plankt:12/3/513 2023-05-15T13:40:35+02:00 The effects of light and temperature on photosynthate partitioning in Antarctic freshwater phytoplankton Hawes, Ian 1990-01-01 00:00:00.0 text/html http://plankt.oxfordjournals.org/cgi/content/short/12/3/513 https://doi.org/10.1093/plankt/12.3.513 en eng Oxford University Press http://plankt.oxfordjournals.org/cgi/content/short/12/3/513 http://dx.doi.org/10.1093/plankt/12.3.513 Copyright (C) 1990, Oxford University Press Articles TEXT 1990 fthighwire https://doi.org/10.1093/plankt/12.3.513 2007-06-24T10:37:47Z The effects of temperature and radiation flux on the partitioning of photosynthetically fixed carbon into four intracellulai metabolic pools was investigated for natural phytoplankton assemblages from an Antarctic freshwater lake. At ambient temperature, protein synthesis was saturated at low photon flux densities (30–40 μmol m−2 s−1) and above this flux fixed carbon was increasingly stored as lipid and polysaccharide. Increasing temperature raised both the saturated rate of protein synthesis and the photon flux at which saturation occurred. There was a corresponding decline in the accumulation of reserve products, particularly at low radiation fluxes. The consequences of this pattern of uptake for the phytoplankton is discussed. Text Antarc* Antarctic HighWire Press (Stanford University) Antarctic Journal of Plankton Research 12 3 513 518 |
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HighWire Press (Stanford University) |
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English |
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Articles |
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Articles Hawes, Ian The effects of light and temperature on photosynthate partitioning in Antarctic freshwater phytoplankton |
topic_facet |
Articles |
description |
The effects of temperature and radiation flux on the partitioning of photosynthetically fixed carbon into four intracellulai metabolic pools was investigated for natural phytoplankton assemblages from an Antarctic freshwater lake. At ambient temperature, protein synthesis was saturated at low photon flux densities (30–40 μmol m−2 s−1) and above this flux fixed carbon was increasingly stored as lipid and polysaccharide. Increasing temperature raised both the saturated rate of protein synthesis and the photon flux at which saturation occurred. There was a corresponding decline in the accumulation of reserve products, particularly at low radiation fluxes. The consequences of this pattern of uptake for the phytoplankton is discussed. |
format |
Text |
author |
Hawes, Ian |
author_facet |
Hawes, Ian |
author_sort |
Hawes, Ian |
title |
The effects of light and temperature on photosynthate partitioning in Antarctic freshwater phytoplankton |
title_short |
The effects of light and temperature on photosynthate partitioning in Antarctic freshwater phytoplankton |
title_full |
The effects of light and temperature on photosynthate partitioning in Antarctic freshwater phytoplankton |
title_fullStr |
The effects of light and temperature on photosynthate partitioning in Antarctic freshwater phytoplankton |
title_full_unstemmed |
The effects of light and temperature on photosynthate partitioning in Antarctic freshwater phytoplankton |
title_sort |
effects of light and temperature on photosynthate partitioning in antarctic freshwater phytoplankton |
publisher |
Oxford University Press |
publishDate |
1990 |
url |
http://plankt.oxfordjournals.org/cgi/content/short/12/3/513 https://doi.org/10.1093/plankt/12.3.513 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
http://plankt.oxfordjournals.org/cgi/content/short/12/3/513 http://dx.doi.org/10.1093/plankt/12.3.513 |
op_rights |
Copyright (C) 1990, Oxford University Press |
op_doi |
https://doi.org/10.1093/plankt/12.3.513 |
container_title |
Journal of Plankton Research |
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12 |
container_issue |
3 |
container_start_page |
513 |
op_container_end_page |
518 |
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1766137241764102144 |