Fig. 5: In vitro competition between B. adolescentis G202 and R. bromii strains.

a R. bromii YIT 6078 T or R. bromii ATCC 51896 and B. adolescentis G202 were simultaneously inoculated into pSt-GAM broth and incubated for the indicated time. Relative abundance of two strains was determined by competitive PCR. b, c R. bromii YIT 6078T was grown on pSt-GAM broth for one day and subsequently B. adolescentis G202 was inoculated and the cultures were incubated for the indicated time. b Bright-field images of pSt without bacteria and R. bromii-associated pSt just before inoculation of G202. Bars = 20 μm. c Relative abundance of the two strains was determined as in a. pSt was completely degraded and no pSt-associated fraction was obtained at 48 h.