Abstract:
:The sulfur metabolite dimethylsulfoniopropionate (DMSP) is the most important precursor of the climate relevant metabolite dimethylsulfide (DMS). It has thus gained interest in the context of climate change and several studies investigated the influence of elevated temperature and/or CO(2) on DMSP in complex plankton communities. However, only little information about changes in response to these factors in single species is available. Therefore, we analyzed DMSP in different phytoplankton cultures (Thalassiosira pseudonana, Phaeodactylum tricornutum, Emiliania huxleyi) under the influence of increased temperature by 6 °C and elevated CO(2) to 790 ppmv. In addition, we addressed glycine betaine (GBT) that fulfills a similar function as osmolyte like DMSP. In all cultures GBT concentrations increased at higher temperature and decreased at elevated CO(2). In contrast, diatoms and prymnesiophytes revealed opposite trends for DMSP. In diatoms increased CO(2) and temperature led to decreased DMSP concentrations, while rather elevated levels of this metabolite under the influence of these parameters were observed for E. huxleyi.
journal_name
Mar Environ Resjournal_title
Marine environmental researchauthors
Spielmeyer A,Pohnert Gdoi
10.1016/j.marenvres.2011.11.002subject
Has Abstractpub_date
2012-02-01 00:00:00pages
62-9eissn
0141-1136issn
1879-0291pii
S0141-1136(11)00154-1journal_volume
73pub_type
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