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Suppression of growth retardation caused by the ΔparAB mutation by the ΔtraB and Δspd1 mutations in strains TK64 (left) and M145 (right). The diameters of 100 colonies of TK64 and M145 harboring various SLP2tsr derivatives in an arbitrary area of the plates were measured and tabulated. The mean diameter (in mm) and standard deviation of each population are listed at the top right.
