Temperature, light, and the dimethylsulfoniopropionate (DMSP) content of Emiliania huxleyi (Prymnesiophyceae)

The precursor of the volatile S-compound dimethylsulfide (DMS), dimethylsulfoniopropionate (DMSP), is produced by marine microalgae, notably by Prymnesiophyceae. The production of DMSP by an axenic isolate of Emiliania huxleyi (Lohm.) Hay et Mohler under different temperature and light conditions wa...

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Bibliographic Details
Published in:Journal of Sea Research
Main Authors: van Rijssel, Marion, Gieskes, Winfried W.C.
Format: Article in Journal/Newspaper
Language:English
Published: 2002
Subjects:
cell volume
DMS
DMSP
climate change
global warming
light
temperature
Emiliania huxleyi
Prymnesiophyceae
GALA
MARINE EUKARYOTIC ALGAE
BETA-DIMETHYLSULPHONIOPROPIONATE
GREEN MACROALGAE
DIMETHYL SULFIDE
GLYCINE BETAINE
INORGANIC-IONS
CARBOHYDRATE SOLUTES
QUATERNARY AMMONIUM
OSMOTIC ADJUSTMENT
TERTIARY SULFONIUM
ice core
Online Access:https://hdl.handle.net/11370/3d5d9182-86d4-4d7c-af36-fbc5aaa4ffe9
https://research.rug.nl/en/publications/3d5d9182-86d4-4d7c-af36-fbc5aaa4ffe9
https://doi.org/10.1016/S1385-1101(02)00134-X
Description
Summary:The precursor of the volatile S-compound dimethylsulfide (DMS), dimethylsulfoniopropionate (DMSP), is produced by marine microalgae, notably by Prymnesiophyceae. The production of DMSP by an axenic isolate of Emiliania huxleyi (Lohm.) Hay et Mohler under different temperature and light conditions was studied as a first step towards understanding the role of DMSP-producing algae in climate regulation. Both light and temperature affected growth rate and cell size in batch cultures, but the concentration of DMSP in the cells was dependent on temperature only: at low temperature DMSP accumulated. This physiological response, assumed to be characteristic of DMSP-producing microalgae in general, is in line with the correlation that has been found between elevated concentrations of the DMS oxidation product MSA in ice core slices corresponding with low sea surface temperatures. Apparently, DMS does not play the role in climate regulation formulated in the CLAW hypothesis that proposes a feedback mechanism in which elevated temperatures lead to an increase in albedo via DMS-derived cloud condensation nuclei. (C) 2002 Elsevier Science B.V. All rights reserved.

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