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Histopathology of Seed-Borne Infections - Applied Research Center ...

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Microtechniques in <strong>Seed</strong> <strong>Histopathology</strong> 267Dissolve gelatin in water at 30°C. When completely dissolved, add phenolcrystals and glycerin.Meyer’s AdhesiveWhite <strong>of</strong> fresh egg 50 mlGlycerin 50 mlSodium salicylate 1 gShake the mixture and filter through sterile cotton or cheese cloth.Gloy SolutionDistilled water 10 mlGloy (liquid) 2 dropsPotassium dichromate small crystal or a pinchShake the mixture vigorously. Do not store for long.10.5.3 MOUNTING MEDIA10.5.3.1 Aqueous Mounting MediaLactophenolLactic acidGlycerinPhenol crystals or distilled waterMix the above reagents in a ratio <strong>of</strong> 1:1:1:1 or 2:1:1:1.The use <strong>of</strong> phenol has been found to be hazardous in laboratories in Swedenand Denmark, and use should be avoided. The mixture <strong>of</strong> lactic acid, glycerol, andwater (1:2:1) has been found suitable (Mathur and Kongsdal, 2003). A safe and goodmedium for temporary mounts is 2% aqueous glycerin.Lactophenol Cotton Blue0.1 g aniline blue (cotton blue) in 100 ml lactophenolStaining, clearing, and mounting are achieved in one step.Polyvinyl Alcohol (PVA)Polyvinyl alcohol 1.66 gDistilled water 10 mlLactic acid 10 mlGlycerol 1 mlAdd polyvinyl alcohol slowly to the water. Stir on magnetic stirrer. Dissolve for1 to 2 hours. Add lactic acid, stirring vigorously, followed by glycerol.

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