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Updated: Sep 29, 2026

Double-Staining Method to Detect Pectin in Plant-Fungus Interaction
Published on: February 4, 2022
Abstract:
Backgrounds prepared with coffee grounds and Conté dust produce many unexpected patterns. The technique adds interest to artwork and is equally good for a carefully prepared drawing as it is for a quick, casual sketch. A materials list is provided which includes a variety of surface choices. The article provides step-by-step directions for the preparation of an attractive coffee-stained background, gives detailed instructions describing how to transfer a sketch, offers tips for drawing with Conté and carbon pencils and tells how to apply highlights.
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Simple Staining Technique
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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...
