Related Experiment Video
Updated: May 18, 2026

Detection and Quantification of Mono-Rhamnolipids and Di-Rhamnolipids Produced by Pseudomonas aeruginosa
Published on: March 29, 2024
Algicidal lactones from the marine Roseobacter clade bacterium Ruegeria pomeroyi
Ramona Riclea1, Julia Gleitzmann, Hilke Bruns
1Institut für Organische Chemie, Technische Universität Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany.
Abstract:
Volatiles released by the marine Roseobacter clade bacterium Rugeria pomeroyi were collected by use of a closed-loop stripping headspace apparatus (CLSA) and analysed by GC-MS. Several lactones were found for which structural proposals were derived from their mass spectra and unambiguously verified by the synthesis of reference compounds. An enantioselective synthesis of two exemplary lactones was performed to establish the enantiomeric compositions of the natural products by enantioselective GC-MS analyses. The lactones were subjected to biotests to investigate their activity against several bacteria, fungi, and algae. A specific algicidal activity was observed that may be important in the interaction between the bacteria and their algal hosts in fading algal blooms.
Related Concept Videos
Gene Regulation in Microbial Communities: Quorum Sensing
Chemical Agents for Microbial Control
Biological Methods for Microbial Control
Bacterial Phylum Planctomycetes
Inhibitors of Bacterial Protein Synthesis
Bacterial Phylum Bacteroidota
