Dimethylsulfoniopropionate uptake by marine phytoplankton.
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.
Vila-Costa
Maria
M
Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar (CSIC), Pg Marítim de la Barceloneta 37-49, 08003 Barcelona, Catalonia, Spain. mariavila@icm.csic.es
Simó
Rafel
R
Harada
Hyakubun
H
Gasol
Josep M
JM
Slezak
Doris
D
Kiene
Ronald P
RP
D001419:Bacteria / Q000378:metabolism; D001622:Betaine / Q000378:metabolism; D001692:Biological Transport; D002462:Cell Membrane / Q000378:metabolism; D017377:Diatoms / Q000378:metabolism; D020387:Food Chain; D008027:Light; D009792:Oceans and Seas; D010839:Phytoplankton / Q000378:metabolism*; D048929:Prochlorococcus / Q000378:metabolism; D012623:Seawater / Q000382:microbiology; D013452:Sulfonium Compounds / Q000378:metabolism*; D013455:Sulfur / Q000378:metabolism; D046940:Synechococcus / Q000378:metabolism
D013452:Sulfonium Compounds; D001622:Betaine; D013455:Sulfur; C068078:dimethylpropiothetin