Chemical Storyline O3

  • Created by: j.everill
  • Created on: 13-04-15 13:45
  • Seaside smell - volatile gas dimethyl sulfide (DMS) produced from compound called dimethylsulfoniopropionate (DMSP) that many microscopic marine algae contain.
  • When algae die, certain ocean bacteria convery DMSP into DMS which is released in atmosphere

DMS molecules thought to be one of main sources of cloud condensation nuclei - small particles in the atmosphere that bind water molecules together + encorage formation of clouds

  • Clouds can reflect solar rad back into space > may play important role in climate regulation

2007 - reported certain genes had been identifyed that appear to affect how ocean bacteria process DMSP molecules.

Appears 1 gene modifys DMSP molecule so it breaks down into DMS…


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