Journal: mSphere
Article Title: Mouse Genetic Background Affects Transfer of an Antibiotic Resistance Plasmid in the Gastrointestinal Tract
doi: 10.1128/mSphere.00847-19
Figure Lengend Snippet: The donor inoculum concentration does not greatly impact the transconjugant yield. Direct plate counts from fecal pellets of 129S6/SvEv mice harboring the altered Schaedler flora inoculated on day 0 with 10 8 CFU of recipient Escherichia coli HS-4 (blue symbols) and on day 7 with 10 2 (A), 10 4 (B), 10 6 (C), or 10 8 (D) CFU of donor Salmonella Kentucky CVM29188 (purple symbols) were determined. (E) Transconjugants from each donor concentration are overlaid (red symbols). Each symbol represents the mean (8 mice/group), and error bars represent standard deviations. Significant differences ( P < 0.05), as indicated by an asterisk, were determined by an ANOVA, followed by Tukey’s test for multiple means comparison. The horizontal dashed line is the limit of quantification (LOQ). Samples that tested negative were assigned a value halfway between 0 and the LOQ, and undiluted samples with greater than 0 but less than 20 colonies were assigned a value of the LOQ.
Article Snippet: Gnotobiotic C3H/HeN ASF mice (∼17 weeks old, n = 8), wild-type 129S6/SvEv ASF mice inoculated with 10 8 CFU of CVM29188 (∼19 weeks old, n = 8), wild-type 129S6/SvEv ASF mice inoculated with 10 2 to 10 6 CFU of CVM29188 (10 to 14 weeks old, n = 8/group), and IL-10 −/− 129S6/SvEv ASF mice (10 to 12 weeks old, n = 7) were originally obtained from Taconic Biosciences.
Techniques: Concentration Assay, Comparison