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Siderophores are small molecular weight (generally 1 kDa) ferric specific ligands produced by variety of organisms to chelate iron under iron limiting conditions. Various assays have been in use to detect and estimate different phenotypes of siderophores. Though there are various methods available for detection of iron specific siderophore or modified method for Cu specific siderophore [chalkophore], reports on modified methods for detection of siderophore having affinity for various other metal ions are scarce. In present study, a modified method was designed for screening siderophores that can bind to heavy metal ions such as Cu 2+

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