Siderophore Lab Report
Transport of siderophores inside the cell. Siderophores form complex with free iron and carry it inside the cell with the help of membrane receptor molecules. In fungi four mechanisms have been proposed for transport of siderophore bound iron to the cells.
1. Shuttle mechanism in which the Fe (III) siderophore complex is transported across the cell membrane by siderophore specific transport proteins and the iron is reductively removed from the siderophore complex inside the cell (Helm & Winkelmann 1994).
2. Taxicab mechanism Fe (III) is transferred from extracellular siderophores to intracellular ligands across the cell membrane (Winkelmann and Huschka 1987).
3. Hydrolytic mechanism- Fe (III) siderophore is transferred inside the cell by
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