Bacterial Catabolism of Dimethylsulfoniopropionate (DMSP)

Bacterial Catabolism of Dimethylsulfoniopropionate (DMSP)

Dimethylsulfoniopropionate (DMSP) is a metabolite produced primarily by marine phytoplankton and is the main precursor to the climatically important gas dimethylsulfide (DMS). DMS is released upon bacterial catabolism of DMSP, but it is not the only possible fate of DMSP sulfur. An alternative demethylation/demethiolation pathway results in the eventual release of methanethiol, a highly reactiv...

Prey-dependent retention of dimethylsulfoniopropionate (DMSP) by mixotrophic dinoflagellates

We investigated the retention of dimethylsulfoniopropionate (DMSP) in phototrophic dinoflagellates arising from mixotrophy by estimating the cellular content of DMSP in Karlodinium veneficum (mixotrophic growth) fed for 7-10 days on either DMSP-rich Amphidinium carterae (phototrophic growth only) or DMSP-poor Teleaulax sp. (phototrophic growth only). In K. veneficum fed on DMSP-poor prey, the c...

Modulation of dimethylsulfoniopropionate ( DMSP ) concentration in an 1

Reply to Tawfik et al.: DddQ is a dimethylsulfoniopropionate lyase involved in dimethylsulfoniopropionate catabolism in marine bacterial cells.

In our report we describe the structure of DddQ, a dimethylsulfoniopropionate (DMSP) lyase, and its catalytic mechanism of the DMSP cleavage reaction (1), and we thank Tawfik et al. for their comments (2) on our paper. Tawfik et al. (2) argue that there are no data supporting the claim that DddQ mediates DMS production in Ruegeria lacuscaerulensis ITI_1157, Roseovarius nubinhibens ISM, or Ruege...

DIMETHYLSULFONIOPROPIONATE ( DMSP ) AND DMSP - LYASE IN CNIDARIAN - ALGAL SYMBIOSES By Denise

Title of Dissertation: DIMETHYSULFONIOPROPIONATE (DMSP) AND DMSP-LYASE IN CNIDARIAN ALGAL SYMBIOSES. Denise Marie Yost, Doctor of Philosophy, 2010 Directed By: Dr. Carys L. Mitchelmore, University of Maryland Center for Environmental Science, Chesapeake Biological Laboratory Dimethylsulfoniopropionate (DMSP) is a multifaceted sulfur compound produced by several groups of marine phytoplankton, m...