Candida albicans adds more weight to iron regulation.

The pathogen Candida albicans can occupy both the bloodstream and gastrointesintal (GI) tract, niches that differ in iron availability. Chen et al. report that a distinct transcription factor, Sef1, alters the conserved fungal iron regulatory paradigm. Sef1 is pivotal for bloodstream infection, but contributes to GI tract colonization as well.