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. 2020 Feb 25;71(11):3323–3339. doi: 10.1093/jxb/eraa039

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© The Author(s) 2020. Published by Oxford University Press on behalf of the Society for Experimental Biology.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 2. — The ultrastructure of the cell and endomembrane architecture. (A) Cell cross-section. The multilobed chloroplast with a pyrenoid (Py) and 16 cytoplasmic valleys (arrows), in which the ER and Golgi are positioned. (B) Magnified view of cytoplasmic valleys, each containing a mitochondrion (black arrows) at the base. Golgi bodies (*) positioned in the mid-valley regions and Golgi-derived vesicles (white arrows) in the cortical region. (C) Longitudinal view of a cell showing Golgi bodies (arrows) forming long networks in the cytoplasmic valleys. (D) Golgi body architecture, with a stack of 12–15 cisternae. The cis face cisternae (C) have wide unstained (i.e. little or osmium binding or electron density) lumens. The medial (M) and trans (T) face cisternae have narrow stained (notable osmium labeling) lumens.