effect of farnesol on planktonic cells and dual biofilm formed by and .

Many biofilm studies have focused on axial biofilms, however biofilms in nature and environment are multi-species. Farnesol is a sesquiterpene alcohol found in many essential oils. This study investigated the effects of farnesol on planktonic cells and biofilms of and . The ultrastructural morphology of farnesol treated cells was evaluated by TEM. According to the XTT results, farnesol caused a significant decrease in metabolic activity and scanning electron microscope images confirmed a reduction in the preformed biofilm as a result of farnesol treatment for single species and biofilms. Although farnesol has less effect on dual species biofilm compared to the single species biofilms, its effect on the dual biofilm was found to be stronger than amphotericin B or ampicillin. Further studies are needed to clarify the role of farnesol on fungal-bacterial biofilms.