Fig. 4

Co-cultivation of S. elongatus cscB and P. putida cscAB in the photobioreactor. Optical density, Nile red-stained cell count of P. putida cscAB, cell count of S. elongates cscB and colony forming units (CFU) determined from plating are depicted over time in a. Arrows indicate the induction of sucrose export by the addition of 0.1 mM IPTG and inoculation of P. putida cscAB. Sucrose and PHA concentrations are plotted in b. Uncertainties in PHA concentrations were estimated from the propagation of errors of the PHA standards