Living without Fur: the subtlety and complexity of iron-responsive gene regulation in the symbiotic bacterium Rhizobium and other α-proteobacteria

Abstract  The alpha-proteobacteria include several important genera, including the symbiotic N2-fixing “rhizobia”, the plant pathogen Agrobacterium, the mammalian pathogens Brucella, Bartonella as well as many others that are of envi