Imaging the ER and Endomembrane System in Cereal Endosperm

  • Verena Ibl
  • , Jenny Peters
  • , Eva Stöger
  • , Elsa Arcalís

    Publications: Contribution to bookChapterPeer Reviewed

    Abstract

    The cereal endosperm is a complex structure comprising distinct cell types, characterized by specialized organelles for the accumulation of storage proteins. Protein trafficking in these cells is complicated by the presence of several different storage organelles including protein bodies (PBs) derived from the endoplasmic reticulum (ER) and dynamic protein storage vacuoles (PSVs). In addition, trafficking may follow a number of different routes depending on developmental stage, showing that the endomembrane system is capable of massive reorganization. Thus, developmental sequences involve progressive changes of the endomembrane system of endosperm tissue and are characterized by a high structural plasticity and endosomal activity.Given the technical dexterity required to access endosperm tissue and study subcellular structures and (seed storage protein) SSP trafficking in cereal seeds, static images are the state of the art providing a bulk of information concerning the cellular composition of seed tissue. In view of the highly dynamic endomembrane system in cereal endosperm cells, it is reasonable to expect that live cell imaging will help to characterize the spatial and temporal changes of the system. The high resolution achieved with electron microscopy perfectly complements the live cell imaging.We therefore established an imaging platform for TEM as well as for live cell imaging. Here, we describe the preparation of different cereal seed tissues for live cell imaging concomitant with immunolocalization studies and ultrastructure.

    Original languageEnglish
    Title of host publicationThe Plant Endoplasmic Reticulum
    Subtitle of host publicationMethods and Protocols
    EditorsChris Hawes, Verena Kriechbaumer
    PublisherHumana Press, Springer
    Pages251-262
    Number of pages12
    Volume1691
    ISBN (Electronic)978-1-4939-7389-7
    ISBN (Print)978-1-4939-7388-0
    DOIs
    Publication statusPublished - 2018

    Publication series

    SeriesMethods in Molecular Biology
    ISSN1064-3745

    Austrian Fields of Science 2012

    • 106028 Plant anatomy
    • 106052 Cell biology

    Keywords

    • Cereal endosperm
    • Endomembrane system
    • Electron microscopy
    • Live cell imaging
    • Fluorescent organelle markers

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