Fig. 3.

CAI-1 type molecule biosynthetic profiles for V. cholerae and V. harveyi. The concentrations of different CAI-1 type molecules present in cell-free culture fluids prepared from V. cholerae (black bars) and V. harveyi (white bars) were determined by HRMS analyses using d₂-CAI-1 as the internal reference (final set of bars). Results from three independent replicates were averaged. Error bars denote standard deviations. See Fig. 1A for the structures of the different molecules.