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Differential stain used on some groups of bacteria

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The acid-fast stain is another important differential stain used on some groups of bacteria. The primary stain is carbol fuchsin (deep pink; fuschia color), followed by an acid-alcohol decolorizer and finally methylene blue (light blue color) counterstain. Acid-fast bacteria, such as Mycobacterium tuberculosis, retain the primary dye, whereas it is "washed"; out of non-acid fast bacteria such as Escherichia coli. What colors would distinguish these two bacteria by this stain?

Reference no: EM133443189

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