Figure 3
a) Mean (±SD) abundances of bla CTX , bla SHV , sul- I, sul- II, and sul- III antibiotic resistance genes standardized to abundances of 16S-rRNA from samples collected at locations in the Grand Marais treatment wetland in summer 2012 and analyzed using qPCR. Statistically significant differences (p<0.05) in abundances of individual genes are indicated using different lower case, upper case, and Greek letters. b) Mean (±SD) abundances of blaTEM and tetr antibiotic resistance genes standardized to abundances of 16S r-RNA from samples collected at locations in the Grand Marais treatment wetland in summer 2012 and analyzed using qPCR. Statistically significant differences (p<0.05) in abundances of individual genes are indicated using different lower case, upper case, and Greek letters.