Figure 5
From: Gemella haemolysans inhibits the growth of the periodontal pathogen Porphyromonas gingivalis

The cell culture supernatant of G. haemolysans exhibits the growth suppression ability against P. gingivalis. (a) P. gingivalis was cultured on blood agar containing sterile GAM medium (as a control, left panel), culture supernatant of G. haemolysans (middle panel), or heat-treated culture supernatant of G. haemolysans (right panel). (b) P. gingivalis was cultured in liquid medium containing PBS (as a control, left), culture supernatant of G. haemolysans (center), or heat-treated culture supernatant of G. haemolysans (right). (c) Quantification of the growth of P. gingivalis observed in (b). The optical density was measured at 600 nm to determine the concentration of P. gingivalis. Error bars show the mean ± SD. All results are representative of data generated in at least three independent experiments.