Fig. 1

Sensitivity of extract-treated M. smegmatis and S. aureus cells to antibiotics. Cells after treatment with ethanolic extract were washed and re-suspended in nutrient broth containing 1x alamar blue. The cultures were aliquoted in triplicate wells of a microplate containing an antibiotic (colistin, tetracycline or levofloxacin). For the control, no antibiotic but water was added. Absorbance at 570 nm was measured at regular time intervals of 3 hours (M. smegmatis) or 30 min (S. aureus). For each antibiotic, the average values of A₅₇₀ (YY-axis) of the extract-treated M. smegmatis (a) or S. aureus (b) culture were plotted over the time (XX-axis). Error bars; ± SD