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. 2005 Mar;71(3):1562–1569. doi: 10.1128/AEM.71.3.1562-1569.2005

FIG. 4.

FIG. 4.

Frequency distribution of the number of S. enterica serovar Thompson pGT-Kan cells in vesicles released by Tetrahymena SSU when both were incubated in TSB buffer at initial ratios of bacteria to protozoa of 500:1 (A), 1,000:1 (B), and 5,000:1 (C). Box plot of the frequency distribution data showing the increase in the median (divider line in the box) and mean (✖) values of the number of cells per vesicle and the increased skewed state of the distribution as the ratio of bacteria to protozoa increases (D).