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Preparation and Sectioning of Paraffin-Embedded Tissue for Histology and Histochemistry
Masayuki Miya1, Ken-Ichiro Hibara2, Jun-Ichi Itoh3
1National Institute of Genetics, Mishima, Shizuoka, Japan.
Abstract:
Cutting thin sections of plant tissues enables observation of internal structures and inner cell layers, and it facilitates various histochemical staining methods. Paraffin embedding gives the tissues a uniform stiffness that is sufficient for sectioning with a microtome. Here, we describe the procedures for preparation of paraffin-embedded tissues and the techniques for sectioning with a microtome. This method is applicable to various types of tissues, including rice shoot apex and immature inflorescence.
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01:03Fixation and Sectioning
The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
01:20Preparation of Samples for Electron Microscopy