期刊
BIO-PROTOCOL
卷 9, 期 7, 页码 -出版社
BIO-PROTOCOL
DOI: 10.21769/BioProtoc.3205
关键词
Cell walls; Cell wall epitopes; Polysaccharides; Immunogold labeling; Transmission electron microscopy
类别
资金
- Swedish Research Council Vetenskapsradet [VR20122343, VR2016-00768]
- Vinnova (Verket for Innovationssystem)
- ERA-CAPS
Plant cell walls consist of different polysaccharides and structural proteins, which form a rigid layer located outside of the plasma membrane. The wall is also a very dynamic cell composite, which is characterized by complex polysaccharide interactions and various modifications during cell development. The visualization of cell wall components in situ is very challenging due to the small size of cell wall composites (nanometer scale), large diversity of the wall polysaccharides and their complex interactions. This protocol describes immunogold labeling of different cell wall epitopes for high-resolution transmission electron microscopy (TEM). It provides a detailed procedure for collection and preparation of plant material, ultra-thin sectioning, specimen labeling and contrasting. An immunolabeling procedure workflow was optimized to obtain high efficiency of carbohydrates labeling for high-resolution TEM. This method was applied to study plant cell wall characteristics in various plant tissues but could also be applied for other cell components in plant and animal tissues.
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