Fig. 1From: Genotype–phenotype correlation of fecal Streptococcus regulator (fsr) locus with gelatinase activity and biofilm formation intensity in clinical E. faecalis isolatesBiofilm-formation by the tested Enterococcus faecalis isolates. The intensity of the biofilm formation by each clinical isolate is expressed as the absorbance of the dissolved dye from stained biofilms at 570 nm. The horizontal lines represent the absorbance cutoff values for non-, weak, moderate, and strong biofilm formationBack to article page