Growth and siderophore production by Bordetella pertussis under iron-restricted conditions

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Abstract
It has been demonstrated that under iron-restricted conditions Bordetella pertussis can obtain iron from iron-saturated human transferrin. Direct contact between B. pertussis and transferrin was not required as B. pertussis was able to acquire iron from transferrin when they were separated by a dialysis membrane. Siderophore activity was detected in supernatants from iron-restricted cultures of B. pertussis, B. bronchiseptica and B. parapertussis. Siderophores were identified as hydroxamates and were produced by both virulent and avirulent strains of B. pertussis.

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