What is gram staining?

Gram staining is the most common method used to distinguish two massive groups of bacteria based on their exclusive cellular wall elements. The Gram stain process distinguishes between Gram-positive and Gram-negative groups by using coloring those cells red or violet. Gram-positive bacteria stain violet due to the presence of a thick layer of peptidoglycan in their cell wall, which retains the crystal violet these cells are stained with. Instead, Gram-negative microorganism stain red, that's attributed to a thinner peptidoglycan wall, which does not keep the crystal violet throughout the decoloring technique.
on Friday September 22 by Kabir Uddin Ahmed
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