Effect of<i>pps</i>disruption and constitutive expression of<i>srfA</i>on surfactin productivity, spreading and antagonistic properties of<i>Bacillus subtilis</i>168 derivatives

Abstract

The constitutive overproduction of surfactin enhances the invasive growth and the in vitro antagonistic activity of the mutant strain. Both properties are known to play an important role in the biocontrol of plant diseases. Plipastatin operon disruption increases the surfactin productivity of mutant strains. These mutants are interesting for use in continuous bioprocesses for surfactin production or in bioremediation.