Iron Uptake, Translocation and Regulation in Higher Plants- A review

For all plants to survive and grow, iron is necessary. The reduction strategy-I of nongraminaceous plants and the chelation strategy-II of graminaceous plants are two different ways that higher plants have evolved to obtain iron, which is only marginally soluble, from the rhizosphere. Both techniques’ essential molecular elements, such as transporters, enzymes and chelators, have been elucidated. Many of these elements are now believed to also work inside the plant to promote internal iron transport. Also being clarified are the transporters involved in intracellular iron trafficking. The bulk of the genes that encode these components are transcriptionally regulated in response to iron availability.