P30 Exploiting seasonal changes in the biochemical fate of carbon fixed by benthic diatoms

P30 Exploiting seasonal changes in the biochemical fate of carbon fixed by benthic diatoms 

Tanja Moerdijk-Poortvliet1 and Dorien Derksen1

1Marine Biobased Specialties, HZ University Of Applied Sciences, Vlissingen, NLD

The research group Marine Biobased Specialties (MBBS) innovates and investigates for alternatives for fossil fuels and a sustainable use of natural resources by uncovering marine organism specialties.

Marine organisms produce a huge diversity of molecules and unique compounds. Microorganisms (e.g. diatoms) in particular have a higher productivity than terrestrial plants and fix large amounts of the greenhouse gas CO2. Within estuaries, intertidal mudflats are very harsh and stressful environments. However, some organisms, such as benthic diatom (i.e. diatoms living in and on the sediment), are capable to withstand these conditions and to adapt to their environment.

We show in detail how benthic diatoms anticipated metabolically to seasonal change by partitioning the fixed carbon differently over the major classes of biochemical compounds (e.g. lipids, carbohydrates, amino acids and nucleic acids) and discuss why these organisms may be promising as renewable resource to produce biobased materials.