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Suppression of capsule formation by expression of cap5D-antisense RNA. CP5 was labelled by immunofluorescence (CY3, green), the cells were stained using DAPI (blue). Cells were grown for 6 h in LB at 37°C. a) S. aureus SA137/93G (control); b) S. aureus SA137/93G harbouring pCapDvorne in the absence of xylose and c) grown in the presence of 50 mM xylose.
