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Allelopathic Activity of the Iron Chelator Anachelin – A Molecular Hybrid with a Dual Mode of Action |
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| Authors: | Suman De Sarkar Judith F Blom Yann Bethuel Friedrich Jüttner Karl Gademann |
| Institution: | 1. Department of Chemistry, University of Basel, Basel;2. Limnological Station, Institute for Plant and Microbial Biology, University of Zurich, Kilchberg;3. Laboratorium für Organische Chemie, Swiss Federal Institute of Technology (ETH) Zürich, Zürich;4. Chemical Synthesis Laboratory (SB‐ISIC‐LSYNC), Swiss Federal Institute of Technology (EPFL), Lausanne;5. Department of Chemistry, University of Zurich, Zürich |
| Abstract: | One of the compounds suggested to be responsible for the cyanobacterial dominance over competing green algae is identified. Evidence is provided on the molecular, chemical level that the iron chelator anachelin from the cyanobacterium Anabaena cylindrica promotes both the growth of cyanobacteria and reduces the growth of competing chlorophytes. These results illustrate a molecular strategy of addressing two challenges (nutrient availability and algal competition) by one molecule. Such strategies could be implied in harmful algal blooms in marine and freshwater environments. |
| Keywords: | Natural products Organic synthesis Siderophores Chemical ecology Mechanism of action |