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. 2018 Dec 12;9:1837. doi: 10.3389/fpls.2018.01837

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Copyright © 2018 Cui, He, Cao, Gao and Jiang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The MVB and autophagosome pathways in plant cells. (i) In MVB/PVC-mediated vacuolar pathway, proteins with vacuolar sorting signal are sorted into MVBs/PVCs and then deposited in the vacuole for degradation; (ii) In autophagic pathway, autophagosomes derive from ER and deliver cargoes into the vacuole for degradation and recycling. ATG9 vesicle is essential for ER-derived autophagosome formation; (iii) The possible crosstalk between the MVB and autophagosome pathways (as indicated by question mark) is also depicted by the dashed lines. MVB, multivesicular body; PVC, prevacuolar compartment; ER, endoplasmic reticulum; TGN, trans-Golgi network.