Dimethylsulfoniopropionate Uptake by Marine Phytoplankton

Author:

Vila-Costa Maria12,Simó Rafel12,Harada Hyakubun12,Gasol Josep M.12,Slezak Doris12,Kiene Ronald P.12

Affiliation:

1. Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar (CSIC), Pg Marítim de la Barceloneta 37-49, 08003 Barcelona, Catalonia, Spain.

2. Department of Marine Sciences, University of South Alabama, Mobile, AL 36688, USA.

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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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