Dictionary > India ink capsule stain

India ink capsule stain

Definition
noun
(microbiology) A negative staining technique wherein the presence of unstained capsule renders a ‘halo’ appearance surrounding the purple-stained cells
Supplement
India ink capsule stain is used to demonstrate cell capsules through microscopic examination. This procedure is used to detect presence of encapsualted species, e.g. Cryptococcus neoformans, which causes cryptococcosis in humans.


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