Chemoattraction to Dimethylsulfoniopropionate Throughout the Marine Microbial Food Web

  title={Chemoattraction to Dimethylsulfoniopropionate Throughout the Marine Microbial Food Web},
  author={Justin R. Seymour and Rafel Sim{\'o} and Tanvir Ahmed and Roman Stocker},
  pages={342 - 345}
Sulfur Signal Dinner Phytoplankton produces large amounts of the compound dimethylsulfoniopropionate (DMSP), which can be transformed into the gas dimethylsulfide and emitted into the atmosphere in sufficient quantities to affect cloud formation. The functional role of DMSP is somewhat unclear, but it is degraded by marine bacteria as a source of reduced carbon and sulfur. It also acts as a foraging cue for a variety of aquatic animals ranging from copepods to marine mammals. Now, Seymour et al… 
Dimethyl sulfide mediates microbial predator-prey interactions between zooplankton and algae in the ocean.
The results demonstrate that DMS-mediated grazing may be ecologically important and prevalent during prey-predator dynamics in aquatic ecosystems, and raises fundamental questions regarding the retention of its biosynthetic enzyme through the evolution of dominant bloom-forming phytoplankton in the ocean.
Chemoattraction to dimethyl sulfide links the sulfur, iron, and carbon cycles in high-latitude oceans
  • M. Savoca
  • Environmental Science
  • 2018
Large marine regions, including the exceptionally productive Southern Ocean, are iron-limited. As a result, there has been substantial interest in iron-fertilizing high nutrient low chlorophyll
DMSP dynamics in marine coralline algal habitats
A chronic, but not acute, reduction in salinity led to a significant decline in coralline algal DMSPi concentrations and a sinking of the surface epithelial cells but no apparent impact on photosynthesis, but the influence of environmental pressures was examined.
Recent insights into oceanic dimethylsulfoniopropionate biosynthesis and catabolism.
Dimethylsulfoniopropionate (DMSP), a globally important organosulfur compound is produced in prodigious amounts (2.0 Pg sulfur) annually in the marine environment by phytoplankton, macroalgae,
Dimethylsulfoniopropionate biosynthesis in marine bacteria and identification of the key gene in this process
It is demonstrated that many marine heterotrophic bacteria also produce DMSP, probably using the same methionine (Met) transamination pathway as macroalgae and phytoplankton, and proposed that bacteria probably make a significant contribution to oceanic DMSP production.
A bacterial pathogen uses dimethylsulfoniopropionate as a cue to target heat-stressed corals
A new role for DMSP is revealed in coral disease, the importance of chemical signaling and swimming behavior in the recruitment of pathogens to corals and the impact of increased seawater temperatures on disease pathways are highlighted.
DMSP Production by Coral-Associated Bacteria
Dimethylsulfoniopropionate (DMSP) is an important molecule in the marine sulfur cycle, produced in large amounts by corals and their dinoflagellate endosymbionts, Symbiodiniaceae. Although corals are
Metagenomic Insights Into the Cycling of Dimethylsulfoniopropionate and Related Molecules in the Eastern China Marginal Seas
This metagenomics study does not provide conclusive evidence for DMSP cycling; however, it does highlight the potential importance of bacteria in the synthesis and catabolism of DMSP and related compounds in diverse sediment environments.
Identification of the algal dimethyl sulfide–releasing enzyme: A missing link in the marine sulfur cycle
Sourcing the smell of the seaside Marine phytoplankton plays a critical role in the global sulfur cycle. Algae, for instance, are the main source of the aromatic compound dimethylsulfide (DMS)


Bacterial chemotaxis and its potential role in marine dimethylsulfide production and biogeochemical sulfur cycling
Combined with lyase activity, bacterial chemotaxis to DMSP could increase the rate of DMS production and therefore play a critical role in biogeochemical sulfur cycling between dissolved organic matter in seawater and the atmosphere.
Dimethylsulfoniopropionate as a Foraging Cue for Reef Fishes
Evidence that planktivorous reef fishes will aggregate to experimental deployments of Dimethylsulfoniopropionate over coral reef habitats in the wild is presented.
Grazing-activated chemical defence in a unicellular marine alga
It is shown that this reaction deters protozoan herbivores, presumably through the production of highly concentrated acrylate, which has antimicrobial activity, which is believed to be the first report of grazing-activated chemical defence in unicellular microorganisms.
The chemical defense ecology of marine unicellular plankton: constraints, mechanisms, and impacts.
  • G. Wolfe
  • Environmental Science
    The Biological bulletin
  • 2000
An algal dimethylsulfoniopropionate cleavage reaction that appears to deter protozoan feeding is detail and explored as a possible model for a rapidly activated, short-range chemical defense system.
Rapid chemotactic response enables marine bacteria to exploit ephemeral microscale nutrient patches
It is shown that the rapid chemotactic response of the marine bacterium Pseudoalteromonas haloplanktis substantially enhances its ability to exploit nutrient patches before they dissipate, suggesting thatChemotactic swimming strategies of marine bacteria in patchy nutrient seascapes exert strong influence on carbon turnover rates by triggering the formation of microscale hot spots of bacterial productivity.
Sulfur assimilation by Oxyrrhis marina feeding on a 35S-DMSP-labelled prey.
This is the first study that provides direct evidence that ingestion of a DMSP-containing prey supplies structural sulfur to a herbivore protist and that quantifies this assimilative supply at one-third of ingested DMSP.
Activated defense systems in marine macroalgae: evidence for an ecological role for DMSP cleavage
The data suggest that DMSP may function as a precursor in an activated defense system in diverse species of temperate macroalgae and may possibly contribute to the widespread success of the Ulvophyceae.
Chemical defense in the microplankton II: Inhibition of protist feeding by β‐dimethylsulfoniopropionate (DMSP)
The efficacy of DMSP as a grazing deterrent appears to depend on grazer species, but not on algal strain or species, and it is hypothesized that DMSP and related compounds act as signals for the presence of potentially harmful algal cells.