Figure 4From: pH-induced change in cell susceptibility to butanol in a high butanol-tolerant bacterium, Enterococcus faecalis strain CM4ACell morphology of E. faecalis strain CM4A. Transmission electron micrographs of the cell grown at pH 6.8 (a, b) or pH 10.0 (c, d) in the absence (a, c) and presence (b, d) of 2.0% butanol. Bars, 0.5 μm.Back to article page