Figure 3 Phase contrast micrographs of Bacillus subtilis spores at different times of sodium hypochlorite treatment. (a) 0 min; (b) 5 min; (c) 10 min; (d) 15 min; (e) 20 min; (f) proportion of CaDPA released at different times. Scale bar of the figure is: 5 μm. Red circles are spores releasing CaDPA.

Effect of sodium hypochlorite on the surface morphology and size of spores