Fig. 1 Generalised map of the plant secretory pathway showing the various routes to and from the Golgi apparatus. 1. Potential Golgi bypass for some storage proteins. 2. Proteins to the storage vacuole. 3. Secretory proteins and carbohydrates to the plasma membrane.
4. Proteins to the lytic vacuole via a prevacuolar compartment (PVC). 5. Endocytosis of membrane and extracellular material to a putative endosome and through to the PVC or direct to the Golgi (7).