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Number of gold particles in each region of wild-type and cotS mutant spores. Each value represents the mean from the analysis of 20 spores (± standard deviation) sectioned and stained as described in the legend to Fig. 2. (A) Wild-type spores; (B) cotS mutant (CB701) spores. OSC, outer spore coat; ISC, inner spore coat; CX; cortex; CR, core.
