Bacterial growth (A) and concentrations of solid phase extractable dissolved organic carbon (SPE-DOC) (B).

<p>The bars (<b>B</b>) represent the average concentrations of SPE-DOC measured in the solid phase extracts of the biological triplicates collected during growth under both +P_i (black) and −P_i conditions (white). The inner panel (<b>A</b>) shows the cell growth, measured as cell density over time, for the two tested conditions. Filled circles represent the cultures growing under +P_i conditions and empty circles represent the cultures growing under −P_i conditions. Error bars indicate the standard deviation of biological triplicates