Fig. 3. Viability of Exiguobacterium sp. DR11 and DR14 biofilms. Upper panel represents biofilm formed by Exiguobacterium sp. DR11 and the lower panel show biofilm formed by strain DR14. Biofilms were stained with LIVE/DEAD BacLight bacterial viability kit (Invitrogen-Molecular probes) after 48 h of incubation at 30 °C. Green fluorescence signifies live cells stained by SYTO9 dye whereas red dye indicates dead cells stained by propidium iodide. Scale bar equals to 10 μm.
