Interactions Between Bacteria of the Roseobacter Group and Marine Algae via Sulfur Metabolites (B07*)

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During the third application period the interactions between bacteria of the Roseobacter group with other organisms via sulfur metabolites such as tropodithietic acid (TDA) and 2,3-dihydroxypropane-1-sulfonate (DHPS) will be studied as well as mechanisms of N-Acylhomoserine lactones (AHL) synthesis. Work on elucidating all enzymes in TDA biosynthesis will be completed, two further classes of DMSP lyases/hydrolases and enzymes of the DMSP demethylation pathway will be characterized and DHPS degradation studied in vitro.