Carvacrol and 1,8-cineole alone or in combination at sublethal concentrations induce changes in the cell morphology and membrane permeability of Pseudomonas fluorescens in a vegetable-based broth

► Carvacrol and 1,8-cineole caused loss of the viability of P. fluorescens. ► The compounds caused major changes in cell morphology. ► The compounds increased the membrane permeability of P. fluorescens. ► The compounds, singly and at sublethal amounts, revealed similar effects.