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. 2011 Jun 27;6(6):e21577. doi: 10.1371/journal.pone.0021577

Figure 3. Cell wall thickness analysis.

Figure 3

(A) Transmission electron microscopy showing one representative image of each bacterial strain used in this study, after growth in the absence of antibiotic to post-exponential phase on TSB media. Magnification ×37,000. Scale bar automatically inserted by the microscope imaging system is shown. (B) Quantification of cell wall thickness (nm) of each bacterial strain. Reported values correspond to the mean ± SD (n = at least 40) of each bacterial strain. Asterisk (*) represents results significantly different by student's two-tailed t-test (p<0.05) from ISP794.