Figure 1From: The requirement for the LysR-type regulator PtrA for Pseudomonas chlororaphis PA23 biocontrol revealed through proteomic and phenotypic analysis Antifungal activity of PA23 and derivative strains against Sclerotinia sclerotiorum . Note that the presence of plasmid-borne ptrA is able to restore antifungal activity in PA23-443.Back to article page