Figure 5. Quantification (in percentage of cubic micrometers) of the biovolume of live and dead bacteria by bioImageL v21 software, from confocal laser scanning microscopy (CLSM) images. The symbol ** shows the statistical difference between groups B and C in the analysis of biovolume of live bacteria (p<0.05), and the symbol *** shows the statistical differences between groups A and C in the analysis of biovolume of live bacteria, and between groups A and C, and B and C, in the analysis of biovolume of dead bacteria (p<0.01).