Differential staining procedures require more than one dye for staining. Two important differential staining procedures are Gram’s staining method and the acid-fast staining method. In the gram staining procedure, gram-positive cells stain purple in color, whereas the acid-fast staining procedure differentiates…
Benzene is a cyclic compound present in coal tar and natural crude oil. Most of the dyes are the derivative of this cyclic compound benzene. So dyes are also called coal tar dyes. Microbiologists use different types of dyes and…
Microorganisms such as bacteria are very small, colorless, and transparent. As a result we cannot see these microorganisms with naked eyes. The reason why we can’t see microorganisms is that they lack contrast. In other words, without contrast and color,…