Left: KinA was induced at t=0 resulting in accelerated sporulation. All KinA-induced spores are highly fluorescent and most are capable of outgrowth in response to L-alanine. Right: The induction of KinA was delayed (t=20h) and induced in the progenitor cells of late spores. While the highly fluorescent early spores grew out none of the resulting lowly fluorescent, late but KinA-induced spores grew out. This shows that KinA induction does not alter the spore properties per se.