Figure 5

K. pneumoniae B5055 biofilm developed on coverslip (a/ a´) 3/ 7 day biofilm grown in 10 μM FeCl 3 supplemented media (b/ b´) 3/ 7 day biofilm grown in 10 μM FeCl 3 + 500 μM cobalt salt supplemented media (c /c´) 3/ 7 day biofilm grown in 10 μM FeCl 3 supplemented media followed by treatment with phage KPO1K2 (d/ d´) 3/ 7 day biofilm grown in 10 μM FeCl 3 + 500 μM cobalt salt supplemented media followed by treatment with phage KPO1K2.