“…Interestingly, a fepA deletion in the lon mutant ST (JOL2472) and the ST wild type strain (JOL2473) completely abolished the expression of fur, sitA, and dps in both strains, possibly due to "lonmediated" and "fepA-mediated" iron uptake is controlled by two independent pathways or these genes may activate upon a certain threshold of iron in the cytoplasm that is never reached in the absence of fepA. In addition to iron, the magnesium ion transporters 43,44 mgtA, mgtB, and corA also demonstrated an increasing trend in the lon mutant. Herein, corA expression is particularly important due to its involvement in iron transport along with magnesium.…”