Fig. 5.

Changes in maturation kinetics could alter the number of cisternae in a stacked Golgi. A Golgi stack is represented as consisting of two classes of cisternae: the Golgi itself (green) and the trans-Golgi network (TGN; orange). These classes would correspond in S. cerevisiae to the early and late Golgi, respectively. If the persistence time of Golgi cisternae were increased without changing other parameters, the stack would contain more Golgi cisternae but the same number of TGN cisternae.