Fig. 3

Growth potential of P. aeruginosa grown in alginate beads expressed as mean fluorescence intensity. a Normoxic growth conditions supplemented with NO3−, b normoxic growth conditions without NO3−, and c anoxic growth conditions in the presence of NO3−. P. aeruginosa was fluorescently labelled with Texas-Red-conjugated PNA-FISH probe tagging ribosomes, imaged by CLSM and quantification of intensity was performed by Imaris