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Figure 4: Effect of P. virgatus water and MeOH extracts on damaged supercoiled pUC18 plasmid DNA. Lane 1: pUC18 DNA + PBS; lane 2: pUC18 DNA + Fenton’s reagent; lane 3: DNA + Fenton’s reagent + water extract (50 μg/mL); lane 4: DNA + Fenton’s reagent + water extract (100 μg/mL); lane 5: DNA + Fenton’s reagent + water extract (200 μg/mL); lane 6: DNA + Fenton’s reagent + MeOH extract (50 μg/mL); lane 7: DNA  + Fenton’s reagent + MeOH extract (100 μg/mL); lane 8: DNA + Fenton’s reagent + MeOH extract (200 μg/mL); lane 9: Mannitol (200 μg/mL).