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, 314 (5799), 652-4

Dimethylsulfoniopropionate Uptake by Marine Phytoplankton

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Dimethylsulfoniopropionate Uptake by Marine Phytoplankton

Maria Vila-Costa et al. Science.

Abstract

Dimethylsulfoniopropionate (DMSP) accounts for most of the organic sulfur fluxes from primary to secondary producers in marine microbial food webs. Incubations of natural communities and axenic cultures with radio-labeled DMSP showed that dominant phytoplankton groups of the ocean, the unicellular cyanobacteria Prochlorococcus and Synechococcus and diatoms, as well as heterotrophic bacteria take up and assimilate DMSP sulfur, thus diverting a proportion of plankton-produced organic sulfur from emission into the atmosphere.

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