The top graph shows how the cultures grew under the different treatments. BHI is the rich medium, and they grew nicely in it. Adding 1mM cAMP slowed growth down a little bit, which is not surprising,as cAMP is a powerful metabolic signal molecule. Transfering the cells to the starvation medium MIV stopped their growth, and even caused quite a drop in cfu/ml, but after a few hours they began to grow again. This could be because A. pleuropneumoniae differs from H. influenzae in being able to synthesize its own pyrimidines - we would need to check its genome.
This is prettier time course than the one I was trying to replicate, so this will probably be the figure that goes into the manuscript.