Virulence of alkaline protease-deficient mutants ofAspergillus fumigatus

Abstract excerpt

The gene encoding the secreted alkaline protease, a suspected virulence factor of Aspergillus fumigatus, was inactivated by gene disruption. The disruption was performed by transformation of a pathogenic strain of the fungus with a linear DNA fragment carrying the gene from which the central part was replaced by the selectable Escherichia coli hygromycin B dominant resistance marker. Two transformants were shown...

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