The plant trans-Golgi network (TGN) is a multifunctional organelle derived from the Golgi. It consists of tubulovesicular compartments scattered in the cytosol. They produce secretory vesicles delivering proteins and polysaccharides to the cell wall. They also serve as early endosomal compartments, receiving endocytic cargos from the plasma membrane. This versatility is thought to originate from functional variations among individual TGN compartments. Correlative light and electron microscopy (CLEM) combines the imaging capability of light microscopy and electron microscopy (EM) to determine the location of macromolecules in EM images in the cellular context. It is possible to identify organelles associated with specific fluorescent markers and examine their membrane architectures at nanometer-level resolutions using CLEM. In this chapter, we will explain the CLEM method that our lab uses to investigate functional and structural heterogeneity among individual TGN compartments in plant cells.
CITATION STYLE
Wang, P., & Kang, B. H. (2020). Correlative Light and Electron Microscopy Imaging of the Plant trans-Golgi Network. In Methods in Molecular Biology (Vol. 2177, pp. 59–67). Humana Press Inc. https://doi.org/10.1007/978-1-0716-0767-1_6
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