Dictionary » F » Fuchsin



a non-specific term referring to any of several red rosanilin dyes used as stains in histology and bacteriology.

Origin: Leonhard Fuchs, german botantist, 1501-1506

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Definition of Primary Stain?

... Primary Stain (Crystal violet) 2. Add Trapping agent (Gram's Iodine.) 3. Decolorize (With alcohol or acetone) 4. Counterstain (Safranin or basic Fuchsin) Anyone able to assist? Thanks in advance :)

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by Aric
Fri Oct 02, 2009 5:27 pm
Forum: Microbiology
Topic: Definition of Primary Stain?
Replies: 1
Views: 18169

Gram Rod Postive Acid Test

... have a cell wall made up of glycolipids, in particular mycolic acids and these are resistant to acid staining, only retaining the carbol fuchsin, making them appear red and gram negative. If the organisms look purple, then these have been decolourised and therefore do not need acid fast ...

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by Sepals
Mon Mar 02, 2009 2:09 pm
Forum: Microbiology
Topic: Gram Rod Postive Acid Test
Replies: 4
Views: 3352

The Fiber Disease

... the crystal violet-iodine complex. These need counterstaining with another dye to be seen using Gram's method. A red dye such as dilute carbol fuchsin is often used. Lysogens are bacteria that have been stably infected with a bacteriophage and that carry the virus as a 'prophage'. The bacteriophage ...

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by Nadas Moksha
Sat Oct 28, 2006 3:28 am
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5571948

Re: Who named Mitochondria?

... observed "filaments" in the cytoplasm of other cell types. In 1890 Altmann discovered a method of staining these structures with fuchsin that made it possible to demonstrate their occurrence in nearly all types of cells. He interpreted them as "elementary living particles, ...

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by lb
Sat Oct 14, 2006 11:31 pm
Forum: Microbiology
Topic: Who named Mitochondria?
Replies: 14
Views: 20045

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