Lactophenol cotton blue

Lactophenol cotton blue (LCB) is a mixture of methyl blue, a histological stain, and lactophenol (a solution of phenol, lactic acid, and glycerol in water).

It is used in wet-mount preparations for visualization of fungal structures, especially in medical mycology.

[1] Methyl blue stains fungal cell walls a bright cerulean color, while lactophenol acts as a mountant.

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