Metabolism of DMSP, DMS and DMSO by the cultivable bacterial community associated with the DMSP-producing dinoflagellate Scrippsiella trochoidea

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dc.contributor.author Hatton, A.D.
dc.contributor.author Shenoy, D.M.
dc.contributor.author Hart, M.C.
dc.contributor.author Mogg, A.
dc.contributor.author Green, D.H.
dc.date.accessioned 2012-10-11T12:07:30Z
dc.date.available 2012-10-11T12:07:30Z
dc.date.issued 2012
dc.identifier.citation Biogeochemistry, vol.110; 2012; 131-146
dc.identifier.uri http://drs.nio.org/drs/handle/2264/4176
dc.description.abstract Bacterial species associated with the dimethylsulfoniopropionate (DMSP)-producing phytoplankton Scrippsiella trochoidea were cultured and identified, with the aim of establishing their ability to metabolise DMSP, dimethylsulfide (DMS) and dimethylsulfoxide (DMSO). Results demonstrate that of the cultivable bacteria only alpha-Proteobacteria were capable of producing DMS from DMSP. The concentration of DMSP was shown to affect the amount of DMS produced. Lower DMSP concentrations (1.5 mu mol dm sup(-3)) were completely assimilated, whereas higher concentrations (10 mu mol dm sup(-3)) resulted in increasing amounts of DMS being produced. By contrast to the restricted set of bacteria that metabolised DMSP, approx. 70 percent of the bacterial isolates were able to 'consume' DMS. However, 98-100 percent of the DMS removed was accounted for as DMSO. Notably, a number of these bacteria would only oxidise DMS in the presence of glucose, including members of the gamma-Proteobacteria and Bacteroidetes. The observations from this study, coupled with published field data, identify DMS oxidation to DMSO as a major transformation pathway for DMS, and we speculate that the fate of DMS and DMSP in the field are tightly coupled to the available carbon produced by phytoplankton.
dc.language.iso en
dc.publisher Springer
dc.rights An edited version of this paper was published by Springer. This paper is for R & D purpose and Copyright [2012] Springer.
dc.subject bacteria
dc.subject metabolism
dc.subject oxidation
dc.subject Scrippsiella trochoidea
dc.title Metabolism of DMSP, DMS and DMSO by the cultivable bacterial community associated with the DMSP-producing dinoflagellate Scrippsiella trochoidea
dc.type Journal Article


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