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Effect of MinCD expression on Z-ring formation using ZipA-GFP as a marker for Z rings. Shown is fluorescence microscopy of PB114 Δmin (λDB173/pSEB103) (expressing ZipA-GFP under Pbad promoter control) 3 h after induction by 0.05% arabinose. At the same time ZipA-GFP was induced, the culture was split in two and no IPTG (A) or 1 mM IPTG (B) was added to induce MinCD (under the control of lacZ promoter) from λDB173.
