Question

write a short note on
PAS staining method​

Answer 1

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PRINCIPLE: The PAS stain is a histochemical reaction in that the periodic acid oxidizes the carbon to carbon bond forming aldehydes which react to the fuchsin-sulfurous acid which form the magenta color. CONTROL: For staining fungus; use a known positive such as those used for the GMS.

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Answer 2

Answer:

The PAS stain is a histochemical reaction in that the periodic acid oxidizes the carbon to carbon bond forming aldehydes which react to the fuchsin-sulfurous acid which form the magenta color. CONTROL: For staining fungus; use a known positive such as those used for the GMS