doi: 10.3389/fpls.2013.00490 Cellular iron homeostasis and metabolism in plant

Iron (Fe) homeostasis represents an important topic in the plant mineral nutrition, since Fe is an essential cofactor for fundamen-tal biochemical activities. Due to the low availability of Fe in most soils, plants are often limited in Fe content. As a conse-quence, plants must tightly regulate an effective Fe acquisition, distribution, and utilization in root and leaf cells in order to allow for sustainable Fe homeostasis and metabolism. In the past several years, there has been significant progress in understand-ing how the Fe deficiency responses are regulated and controlled in plants. However, several questions remain still open (Vigani et al., 2013a). Thereby, further work is required in order to fully understand the Fe homeostasis and metabolism in plants. The aim of this Research Topic is to provide an overview on the new insights of both Fe homeostasis processes and metabolic reprogramming occurring in cellular compartments under differ