Cisternal maturation model

How the Golgi apparatus maintains its polarized structure while molecules move from one compartment to another is still a matter of debate. Two models were originally proposed based on different experimental evidence (Fig. 9-5) the vesicular transport model and the cisternal maturation model. A third model known as the dual transport model combines elements from both vesicular transport and cisternal maturation models and can better explain intra-Golgi transport. 

These and other inconsistencies fueled the proposal of an alternative model known as the cisternal maturation/ progression model [40]. In the cisternal maturation... 

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