Fig. 1From: The first report on the sortase-mediated display of bioactive protein A from Staphylococcus aureus (SpA) on the surface of the vegetative form of Bacillus subtilisConfirmation of cell wall separation from protoplast using gram staining. A B. subtilis cells before lysozyme treatment and B B. subtilis cells after lysozyme treatment and cell wall separationBack to article page