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Spore germination. B. subtilis wild-type PY79 (□), strain BJP1 bearing multicopy PgerE-spoIIID (•), strain BJP2 bearing multicopy PgerE (○), and gerE mutant EUDC9901 (▪) were induced to sporulate by resuspension in SM medium; samples were collected after 24 h; spores were purified; and quantitative germination assays were performed. Each point is the average for three determinations, and error bars show 1 standard deviation of the data. OD580, optical density at 580 nm.
