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    Distinct roles for intra- and extracellular siderophores during Aspergillus fumigatus infection. by Markus Schrettl, Elaine Bignell, Claudia Kragl, Yasmin Sabiha, Omar Loss, Martin Eisendle, Anja Wallner, Herbert N Arst, Ken Haynes, Hubertus Haas

    Published 2007-09-01
    “…Restoration of the conidial hydroxyferricrocin content partially rescues the virulence of the apathogenic siderophore null mutant Delta sidA, demonstrating an important role for the conidial siderophore during initiation of infection. Abrogation of extracellular siderophore biosynthesis following inactivation of the acyl transferase SidF or the nonribosomal peptide synthetase SidD leads to complete dependence upon reductive iron assimilation for growth under iron-limiting conditions, partial sensitivity to oxidative stress, and significantly reduced virulence, despite normal germ tube formation. …”
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