Under aerated conditions at neutral to alkaline pH, inorganic iron is extremely insoluble and its concentration is less than optimal for bacterial growth. To acquire iron bacterial cell produce siderophore. There is an enormous scope for the application of microbial siderophores for the sustainability of humans, animals and plants.
Currently the applications of siderophores in medicine, agricultural and environmental sector are reported in some extent. But the application of siderophore research is not at all initiated in various field of microbiology. So, there is a need to discover siderophores from normal and also extremophiles in the ecosystems like deep sea, desert and forest to exploit their applications for welfare of all living beings as well as for environment.