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Dissolved organic matter release by an axenic culture of Emiliania huxleyi

Published online by Cambridge University Press:  22 July 2008

Suhaimi Suratman ,
Keith Weston ,
Tim Jickells ,
Rosie Chance  and
Tom Bell
Suhaimi Suratman*
Affiliation:
School of Environmental Sciences, University of East Anglia, Norwich, Norfolk NR4 7TJ, UK Present address: Environmental Research Group, Department of Chemical Sciences, University Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia
Keith Weston
Affiliation:
School of Environmental Sciences, University of East Anglia, Norwich, Norfolk NR4 7TJ, UK
Tim Jickells
Affiliation:
School of Environmental Sciences, University of East Anglia, Norwich, Norfolk NR4 7TJ, UK
Rosie Chance
Affiliation:
School of Environmental Sciences, University of East Anglia, Norwich, Norfolk NR4 7TJ, UK Present address: Department of Chemistry, University of York, Heslington, York YO10 5DD, UK
Tom Bell
Affiliation:
School of Environmental Sciences, University of East Anglia, Norwich, Norfolk NR4 7TJ, UK
*
Correspondence should be addressed to: Suhaimi Suratman, Environmental Research Group, Department of Chemical Sciences, University of Malaysia Terengganu, 21030 Kuala Terengganu, Terrengganu, Malaysia email: [email protected]
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Abstract

Measurements of the release of dissolved organic nitrogen (DON) and carbon (DOC) were carried out on an axenic batch culture of the coccolithophorid Emiliania huxleyi. This unicellular marine alga was cultured using a media with nitrate as the sole N source and the changes of DOM concentrations measured over 14 days. Results showed that there was a significant release of DON, i.e.7.6 µM N day−1 during mid-exponential growth phase (days 5–7). The highest release of DOC was also recorded in the same growth phase and accounted for 24.0 μM C day−1.

Keywords

dissolved organic matteranexic cultureEmiliana huxleyi
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 88 , Issue 7 , November 2008 , pp. 1343 - 1346
Copyright
Copyright © Marine Biological Association of the United Kingdom 2008

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