FIG 1.

P. aeruginosa can stimulate the growth of S. sanguinis when grown in cocultures. (A and B) Growth kinetics of S. sanguinis SK36 (labeled SK36) and P. aeruginosa PAO1 (labeled PAO1) in a 96-well deep-well plate either in coculture or as a monoculture. (C and D) P. aeruginosa cells or a 1:2 dilution of P. aeruginosa supernatant (super) enhances S. sanguinis growth in coculture on a plastic substratum (C) or on CFBE monolayers (D). Error bars indicate standard deviation of the means from a representative triplicate assay. **, P < 0.01 (Student’s t test).